[WEB-664] refactor: folder structure (#3884)

* refactor: folder structure

* chore: resolved merge conflicts

apiserver/plane/app/urls/issue.py

@@ -3,14 +3,15 @@ from django.urls import path
 from plane.app.views import (
     BulkCreateIssueLabelsEndpoint,
     BulkDeleteIssuesEndpoint,
+    SubIssuesEndpoint,
+    IssueLinkViewSet,
+    IssueAttachmentEndpoint,
     CommentReactionViewSet,
     ExportIssuesEndpoint,
     IssueActivityEndpoint,
     IssueArchiveViewSet,
-    IssueAttachmentEndpoint,
     IssueCommentViewSet,
     IssueDraftViewSet,
-    IssueLinkViewSet,
     IssueListEndpoint,
     IssueReactionViewSet,
     IssueRelationViewSet,
@@ -18,8 +19,6 @@ from plane.app.views import (
     IssueUserDisplayPropertyEndpoint,
     IssueViewSet,
     LabelViewSet,
-    SubIssuesEndpoint,
-    UserWorkSpaceIssues,
 )
 
 urlpatterns = [
@@ -82,11 +81,6 @@ urlpatterns = [
         BulkDeleteIssuesEndpoint.as_view(),
         name="project-issues-bulk",
     ),
-    path(
-        "workspaces/<str:slug>/my-issues/",
-        UserWorkSpaceIssues.as_view(),
-        name="workspace-issues",
-    ),
     ##
     path(
         "workspaces/<str:slug>/projects/<uuid:project_id>/issues/<uuid:issue_id>/sub-issues/",

apiserver/plane/app/views/__init__.py

@@ -1,19 +1,26 @@
-from .project import (
+from .project.base import (
     ProjectViewSet,
-    ProjectMemberViewSet,
-    UserProjectInvitationsViewset,
-    ProjectInvitationsViewset,
-    AddTeamToProjectEndpoint,
     ProjectIdentifierEndpoint,
-    ProjectJoinEndpoint,
     ProjectUserViewsEndpoint,
-    ProjectMemberUserEndpoint,
     ProjectFavoritesViewSet,
     ProjectPublicCoverImagesEndpoint,
     ProjectDeployBoardViewSet,
+)
+
+from .project.invite import (
+    UserProjectInvitationsViewset,
+    ProjectInvitationsViewset,
+    ProjectJoinEndpoint,
+)
+
+from .project.member import (
+    ProjectMemberViewSet,
+    AddTeamToProjectEndpoint,
+    ProjectMemberUserEndpoint,
     UserProjectRolesEndpoint,
 )
-from .user import (
+
+from .user.base import (
     UserEndpoint,
     UpdateUserOnBoardedEndpoint,
     UpdateUserTourCompletedEndpoint,
@@ -24,71 +31,121 @@ from .oauth import OauthEndpoint
 
 from .base import BaseAPIView, BaseViewSet, WebhookMixin
 
-from .workspace import (
+from .workspace.base import (
     WorkSpaceViewSet,
     UserWorkSpacesEndpoint,
     WorkSpaceAvailabilityCheckEndpoint,
-    WorkspaceJoinEndpoint,
-    WorkSpaceMemberViewSet,
-    TeamMemberViewSet,
-    WorkspaceInvitationsViewset,
-    UserWorkspaceInvitationsViewSet,
-    UserLastProjectWithWorkspaceEndpoint,
-    WorkspaceMemberUserEndpoint,
-    WorkspaceMemberUserViewsEndpoint,
-    UserActivityGraphEndpoint,
-    UserIssueCompletedGraphEndpoint,
     UserWorkspaceDashboardEndpoint,
     WorkspaceThemeViewSet,
-    WorkspaceUserProfileStatsEndpoint,
+    ExportWorkspaceUserActivityEndpoint
-    WorkspaceUserActivityEndpoint,
+)
-    WorkspaceUserProfileEndpoint,
+
-    WorkspaceUserProfileIssuesEndpoint,
+from .workspace.member import (
-    WorkspaceLabelsEndpoint,
+    WorkSpaceMemberViewSet,
+    TeamMemberViewSet,
+    WorkspaceMemberUserEndpoint,
     WorkspaceProjectMemberEndpoint,
-    WorkspaceUserPropertiesEndpoint,
+    WorkspaceMemberUserViewsEndpoint,
+)
+from .workspace.invite import (
+    WorkspaceInvitationsViewset,
+    WorkspaceJoinEndpoint,
+    UserWorkspaceInvitationsViewSet,
+)
+from .workspace.label import (
+    WorkspaceLabelsEndpoint,
+)
+from .workspace.state import (
     WorkspaceStatesEndpoint,
+)
+from .workspace.user import (
+    UserLastProjectWithWorkspaceEndpoint,
+    WorkspaceUserProfileIssuesEndpoint,
+    WorkspaceUserPropertiesEndpoint,
+    WorkspaceUserProfileEndpoint,
+    WorkspaceUserActivityEndpoint,
+    WorkspaceUserProfileStatsEndpoint,
+    UserActivityGraphEndpoint,
+    UserIssueCompletedGraphEndpoint,
+)
+from .workspace.estimate import (
     WorkspaceEstimatesEndpoint,
-    ExportWorkspaceUserActivityEndpoint,
+)
+from .workspace.module import (
     WorkspaceModulesEndpoint,
+)
+from .workspace.cycle import (
     WorkspaceCyclesEndpoint,
 )
-from .state import StateViewSet
+
-from .view import (
+from .state.base import StateViewSet
+from .view.base import (
     GlobalViewViewSet,
     GlobalViewIssuesViewSet,
     IssueViewViewSet,
     IssueViewFavoriteViewSet,
 )
-from .cycle import (
+from .cycle.base import (
     CycleViewSet,
-    CycleIssueViewSet,
     CycleDateCheckEndpoint,
     CycleFavoriteViewSet,
     TransferCycleIssueEndpoint,
     CycleUserPropertiesEndpoint,
 )
-from .asset import FileAssetEndpoint, UserAssetsEndpoint, FileAssetViewSet
+from .cycle.issue import (
-from .issue import (
+    CycleIssueViewSet,
+)
+
+from .asset.base import FileAssetEndpoint, UserAssetsEndpoint, FileAssetViewSet
+from .issue.base import (
     IssueListEndpoint,
     IssueViewSet,
-    WorkSpaceIssuesEndpoint,
-    IssueActivityEndpoint,
-    IssueCommentViewSet,
     IssueUserDisplayPropertyEndpoint,
-    LabelViewSet,
     BulkDeleteIssuesEndpoint,
-    UserWorkSpaceIssues,
+)
-    SubIssuesEndpoint,
+
-    IssueLinkViewSet,
+from .issue.activity import (
-    BulkCreateIssueLabelsEndpoint,
+    IssueActivityEndpoint,
-    IssueAttachmentEndpoint,
+)
+
+from .issue.archive import (
     IssueArchiveViewSet,
-    IssueSubscriberViewSet,
+)
+
+from .issue.attachment import (
+    IssueAttachmentEndpoint,
+)
+
+from .issue.comment import (
+    IssueCommentViewSet,
     CommentReactionViewSet,
-    IssueReactionViewSet,
+)
+
+from .issue.draft import IssueDraftViewSet
+
+from .issue.label import (
+    LabelViewSet,
+    BulkCreateIssueLabelsEndpoint,
+)
+
+from .issue.link import (
+    IssueLinkViewSet,
+)
+
+from .issue.relation import (
     IssueRelationViewSet,
-    IssueDraftViewSet,
+)
+
+from .issue.reaction import (
+    IssueReactionViewSet,
+)
+
+from .issue.sub_issue import (
+    SubIssuesEndpoint,
+)
+
+from .issue.subscriber import (
+    IssueSubscriberViewSet,
 )
 
 from .auth_extended import (
@@ -107,17 +164,21 @@ from .authentication import (
     MagicSignInEndpoint,
 )
 
-from .module import (
+from .module.base import (
     ModuleViewSet,
-    ModuleIssueViewSet,
     ModuleLinkViewSet,
     ModuleFavoriteViewSet,
     ModuleUserPropertiesEndpoint,
 )
 
+from .module.issue import (
+    ModuleIssueViewSet,
+)
+
 from .api import ApiTokenEndpoint
 
-from .page import (
+
+from .page.base import (
     PageViewSet,
     PageFavoriteViewSet,
     PageLogEndpoint,
@@ -127,19 +188,19 @@ from .page import (
 from .search import GlobalSearchEndpoint, IssueSearchEndpoint
 
 
-from .external import (
+from .external.base import (
     GPTIntegrationEndpoint,
     UnsplashEndpoint,
 )
 
-from .estimate import (
+from .estimate.base import (
     ProjectEstimatePointEndpoint,
     BulkEstimatePointEndpoint,
 )
 
-from .inbox import InboxViewSet, InboxIssueViewSet
+from .inbox.base import InboxViewSet, InboxIssueViewSet
 
-from .analytic import (
+from .analytic.base import (
     AnalyticsEndpoint,
     AnalyticViewViewset,
     SavedAnalyticEndpoint,
@@ -147,23 +208,23 @@ from .analytic import (
     DefaultAnalyticsEndpoint,
 )
 
-from .notification import (
+from .notification.base import (
     NotificationViewSet,
     UnreadNotificationEndpoint,
     MarkAllReadNotificationViewSet,
     UserNotificationPreferenceEndpoint,
 )
 
-from .exporter import ExportIssuesEndpoint
+from .exporter.base import ExportIssuesEndpoint
 
 from .config import ConfigurationEndpoint, MobileConfigurationEndpoint
 
-from .webhook import (
+from .webhook.base import (
     WebhookEndpoint,
     WebhookLogsEndpoint,
     WebhookSecretRegenerateEndpoint,
 )
 
-from .dashboard import DashboardEndpoint, WidgetsEndpoint
+from .dashboard.base import DashboardEndpoint, WidgetsEndpoint
 
 from .error_404 import custom_404_view

apiserver/plane/app/views/asset/base.py

@@ -4,7 +4,7 @@ from rest_framework.response import Response
 from rest_framework.parsers import MultiPartParser, FormParser, JSONParser
 
 # Module imports
-from .base import BaseAPIView, BaseViewSet
+from ..base import BaseAPIView, BaseViewSet
 from plane.db.models import FileAsset, Workspace
 from plane.app.serializers import FileAssetSerializer
 

apiserver/plane/app/views/cycle/base.py

@@ -29,7 +29,7 @@ from rest_framework.response import Response
 from rest_framework import status
 
 # Module imports
-from . import BaseViewSet, BaseAPIView, WebhookMixin
+from .. import BaseViewSet, BaseAPIView, WebhookMixin
 from plane.app.serializers import (
     CycleSerializer,
     CycleIssueSerializer,
@@ -660,278 +660,6 @@ class CycleViewSet(WebhookMixin, BaseViewSet):
         return Response(status=status.HTTP_204_NO_CONTENT)
 
 
-class CycleIssueViewSet(WebhookMixin, BaseViewSet):
-    serializer_class = CycleIssueSerializer
-    model = CycleIssue
-
-    webhook_event = "cycle_issue"
-    bulk = True
-
-    permission_classes = [
-        ProjectEntityPermission,
-    ]
-
-    filterset_fields = [
-        "issue__labels__id",
-        "issue__assignees__id",
-    ]
-
-    def get_queryset(self):
-        return self.filter_queryset(
-            super()
-            .get_queryset()
-            .annotate(
-                sub_issues_count=Issue.issue_objects.filter(
-                    parent=OuterRef("issue_id")
-                )
-                .order_by()
-                .annotate(count=Func(F("id"), function="Count"))
-                .values("count")
-            )
-            .filter(workspace__slug=self.kwargs.get("slug"))
-            .filter(project_id=self.kwargs.get("project_id"))
-            .filter(
-                project__project_projectmember__member=self.request.user,
-                project__project_projectmember__is_active=True,
-            )
-            .filter(cycle_id=self.kwargs.get("cycle_id"))
-            .select_related("project")
-            .select_related("workspace")
-            .select_related("cycle")
-            .select_related("issue", "issue__state", "issue__project")
-            .prefetch_related("issue__assignees", "issue__labels")
-            .distinct()
-        )
-
-    @method_decorator(gzip_page)
-    def list(self, request, slug, project_id, cycle_id):
-        fields = [
-            field
-            for field in request.GET.get("fields", "").split(",")
-            if field
-        ]
-        order_by = request.GET.get("order_by", "created_at")
-        filters = issue_filters(request.query_params, "GET")
-        queryset = (
-            Issue.issue_objects.filter(issue_cycle__cycle_id=cycle_id)
-            .filter(project_id=project_id)
-            .filter(workspace__slug=slug)
-            .filter(**filters)
-            .select_related("workspace", "project", "state", "parent")
-            .prefetch_related(
-                "assignees",
-                "labels",
-                "issue_module__module",
-                "issue_cycle__cycle",
-            )
-            .order_by(order_by)
-            .filter(**filters)
-            .annotate(cycle_id=F("issue_cycle__cycle_id"))
-            .annotate(
-                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
-                .order_by()
-                .annotate(count=Func(F("id"), function="Count"))
-                .values("count")
-            )
-            .annotate(
-                attachment_count=IssueAttachment.objects.filter(
-                    issue=OuterRef("id")
-                )
-                .order_by()
-                .annotate(count=Func(F("id"), function="Count"))
-                .values("count")
-            )
-            .annotate(
-                sub_issues_count=Issue.issue_objects.filter(
-                    parent=OuterRef("id")
-                )
-                .order_by()
-                .annotate(count=Func(F("id"), function="Count"))
-                .values("count")
-            )
-            .annotate(
-                label_ids=Coalesce(
-                    ArrayAgg(
-                        "labels__id",
-                        distinct=True,
-                        filter=~Q(labels__id__isnull=True),
-                    ),
-                    Value([], output_field=ArrayField(UUIDField())),
-                ),
-                assignee_ids=Coalesce(
-                    ArrayAgg(
-                        "assignees__id",
-                        distinct=True,
-                        filter=~Q(assignees__id__isnull=True),
-                    ),
-                    Value([], output_field=ArrayField(UUIDField())),
-                ),
-                module_ids=Coalesce(
-                    ArrayAgg(
-                        "issue_module__module_id",
-                        distinct=True,
-                        filter=~Q(issue_module__module_id__isnull=True),
-                    ),
-                    Value([], output_field=ArrayField(UUIDField())),
-                ),
-            )
-            .order_by(order_by)
-        )
-        if self.fields:
-            issues = IssueSerializer(
-                queryset, many=True, fields=fields if fields else None
-            ).data
-        else:
-            issues = queryset.values(
-                "id",
-                "name",
-                "state_id",
-                "sort_order",
-                "completed_at",
-                "estimate_point",
-                "priority",
-                "start_date",
-                "target_date",
-                "sequence_id",
-                "project_id",
-                "parent_id",
-                "cycle_id",
-                "module_ids",
-                "label_ids",
-                "assignee_ids",
-                "sub_issues_count",
-                "created_at",
-                "updated_at",
-                "created_by",
-                "updated_by",
-                "attachment_count",
-                "link_count",
-                "is_draft",
-                "archived_at",
-            )
-        return Response(issues, status=status.HTTP_200_OK)
-
-    def create(self, request, slug, project_id, cycle_id):
-        issues = request.data.get("issues", [])
-
-        if not issues:
-            return Response(
-                {"error": "Issues are required"},
-                status=status.HTTP_400_BAD_REQUEST,
-            )
-
-        cycle = Cycle.objects.get(
-            workspace__slug=slug, project_id=project_id, pk=cycle_id
-        )
-
-        if (
-            cycle.end_date is not None
-            and cycle.end_date < timezone.now().date()
-        ):
-            return Response(
-                {
-                    "error": "The Cycle has already been completed so no new issues can be added"
-                },
-                status=status.HTTP_400_BAD_REQUEST,
-            )
-
-        # Get all CycleIssues already created
-        cycle_issues = list(
-            CycleIssue.objects.filter(
-                ~Q(cycle_id=cycle_id), issue_id__in=issues
-            )
-        )
-        existing_issues = [
-            str(cycle_issue.issue_id) for cycle_issue in cycle_issues
-        ]
-        new_issues = list(set(issues) - set(existing_issues))
-
-        # New issues to create
-        created_records = CycleIssue.objects.bulk_create(
-            [
-                CycleIssue(
-                    project_id=project_id,
-                    workspace_id=cycle.workspace_id,
-                    created_by_id=request.user.id,
-                    updated_by_id=request.user.id,
-                    cycle_id=cycle_id,
-                    issue_id=issue,
-                )
-                for issue in new_issues
-            ],
-            batch_size=10,
-        )
-
-        # Updated Issues
-        updated_records = []
-        update_cycle_issue_activity = []
-        # Iterate over each cycle_issue in cycle_issues
-        for cycle_issue in cycle_issues:
-            # Update the cycle_issue's cycle_id
-            cycle_issue.cycle_id = cycle_id
-            # Add the modified cycle_issue to the records_to_update list
-            updated_records.append(cycle_issue)
-            # Record the update activity
-            update_cycle_issue_activity.append(
-                {
-                    "old_cycle_id": str(cycle_issue.cycle_id),
-                    "new_cycle_id": str(cycle_id),
-                    "issue_id": str(cycle_issue.issue_id),
-                }
-            )
-
-        # Update the cycle issues
-        CycleIssue.objects.bulk_update(
-            updated_records, ["cycle_id"], batch_size=100
-        )
-        # Capture Issue Activity
-        issue_activity.delay(
-            type="cycle.activity.created",
-            requested_data=json.dumps({"cycles_list": issues}),
-            actor_id=str(self.request.user.id),
-            issue_id=None,
-            project_id=str(self.kwargs.get("project_id", None)),
-            current_instance=json.dumps(
-                {
-                    "updated_cycle_issues": update_cycle_issue_activity,
-                    "created_cycle_issues": serializers.serialize(
-                        "json", created_records
-                    ),
-                }
-            ),
-            epoch=int(timezone.now().timestamp()),
-            notification=True,
-            origin=request.META.get("HTTP_ORIGIN"),
-        )
-        return Response({"message": "success"}, status=status.HTTP_201_CREATED)
-
-    def destroy(self, request, slug, project_id, cycle_id, issue_id):
-        cycle_issue = CycleIssue.objects.get(
-            issue_id=issue_id,
-            workspace__slug=slug,
-            project_id=project_id,
-            cycle_id=cycle_id,
-        )
-        issue_activity.delay(
-            type="cycle.activity.deleted",
-            requested_data=json.dumps(
-                {
-                    "cycle_id": str(self.kwargs.get("cycle_id")),
-                    "issues": [str(issue_id)],
-                }
-            ),
-            actor_id=str(self.request.user.id),
-            issue_id=str(issue_id),
-            project_id=str(self.kwargs.get("project_id", None)),
-            current_instance=None,
-            epoch=int(timezone.now().timestamp()),
-            notification=True,
-            origin=request.META.get("HTTP_ORIGIN"),
-        )
-        cycle_issue.delete()
-        return Response(status=status.HTTP_204_NO_CONTENT)
-
-
 class CycleDateCheckEndpoint(BaseAPIView):
     permission_classes = [
         ProjectEntityPermission,

apiserver/plane/app/views/cycle/issue.py

@@ -0,0 +1,312 @@
+# Python imports
+import json
+
+# Django imports
+from django.db.models import (
+    Func,
+    F,
+    Q,
+    OuterRef,
+    Value,
+    UUIDField,
+)
+from django.core import serializers
+from django.utils import timezone
+from django.utils.decorators import method_decorator
+from django.views.decorators.gzip import gzip_page
+from django.contrib.postgres.aggregates import ArrayAgg
+from django.contrib.postgres.fields import ArrayField
+from django.db.models.functions import Coalesce
+
+# Third party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet, WebhookMixin
+from plane.app.serializers import (
+    IssueSerializer,
+    CycleIssueSerializer,
+)
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import (
+    Cycle,
+    CycleIssue,
+    Issue,
+    IssueLink,
+    IssueAttachment,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+from plane.utils.issue_filters import issue_filters
+
+
+class CycleIssueViewSet(WebhookMixin, BaseViewSet):
+    serializer_class = CycleIssueSerializer
+    model = CycleIssue
+
+    webhook_event = "cycle_issue"
+    bulk = True
+
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    filterset_fields = [
+        "issue__labels__id",
+        "issue__assignees__id",
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("issue_id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .filter(cycle_id=self.kwargs.get("cycle_id"))
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("cycle")
+            .select_related("issue", "issue__state", "issue__project")
+            .prefetch_related("issue__assignees", "issue__labels")
+            .distinct()
+        )
+
+    @method_decorator(gzip_page)
+    def list(self, request, slug, project_id, cycle_id):
+        fields = [
+            field
+            for field in request.GET.get("fields", "").split(",")
+            if field
+        ]
+        order_by = request.GET.get("order_by", "created_at")
+        filters = issue_filters(request.query_params, "GET")
+        queryset = (
+            Issue.issue_objects.filter(issue_cycle__cycle_id=cycle_id)
+            .filter(project_id=project_id)
+            .filter(workspace__slug=slug)
+            .filter(**filters)
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related(
+                "assignees",
+                "labels",
+                "issue_module__module",
+                "issue_cycle__cycle",
+            )
+            .order_by(order_by)
+            .filter(**filters)
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+            .order_by(order_by)
+        )
+        if self.fields:
+            issues = IssueSerializer(
+                queryset, many=True, fields=fields if fields else None
+            ).data
+        else:
+            issues = queryset.values(
+                "id",
+                "name",
+                "state_id",
+                "sort_order",
+                "completed_at",
+                "estimate_point",
+                "priority",
+                "start_date",
+                "target_date",
+                "sequence_id",
+                "project_id",
+                "parent_id",
+                "cycle_id",
+                "module_ids",
+                "label_ids",
+                "assignee_ids",
+                "sub_issues_count",
+                "created_at",
+                "updated_at",
+                "created_by",
+                "updated_by",
+                "attachment_count",
+                "link_count",
+                "is_draft",
+                "archived_at",
+            )
+        return Response(issues, status=status.HTTP_200_OK)
+
+    def create(self, request, slug, project_id, cycle_id):
+        issues = request.data.get("issues", [])
+
+        if not issues:
+            return Response(
+                {"error": "Issues are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        cycle = Cycle.objects.get(
+            workspace__slug=slug, project_id=project_id, pk=cycle_id
+        )
+
+        if (
+            cycle.end_date is not None
+            and cycle.end_date < timezone.now().date()
+        ):
+            return Response(
+                {
+                    "error": "The Cycle has already been completed so no new issues can be added"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Get all CycleIssues already created
+        cycle_issues = list(
+            CycleIssue.objects.filter(
+                ~Q(cycle_id=cycle_id), issue_id__in=issues
+            )
+        )
+        existing_issues = [
+            str(cycle_issue.issue_id) for cycle_issue in cycle_issues
+        ]
+        new_issues = list(set(issues) - set(existing_issues))
+
+        # New issues to create
+        created_records = CycleIssue.objects.bulk_create(
+            [
+                CycleIssue(
+                    project_id=project_id,
+                    workspace_id=cycle.workspace_id,
+                    created_by_id=request.user.id,
+                    updated_by_id=request.user.id,
+                    cycle_id=cycle_id,
+                    issue_id=issue,
+                )
+                for issue in new_issues
+            ],
+            batch_size=10,
+        )
+
+        # Updated Issues
+        updated_records = []
+        update_cycle_issue_activity = []
+        # Iterate over each cycle_issue in cycle_issues
+        for cycle_issue in cycle_issues:
+            # Update the cycle_issue's cycle_id
+            cycle_issue.cycle_id = cycle_id
+            # Add the modified cycle_issue to the records_to_update list
+            updated_records.append(cycle_issue)
+            # Record the update activity
+            update_cycle_issue_activity.append(
+                {
+                    "old_cycle_id": str(cycle_issue.cycle_id),
+                    "new_cycle_id": str(cycle_id),
+                    "issue_id": str(cycle_issue.issue_id),
+                }
+            )
+
+        # Update the cycle issues
+        CycleIssue.objects.bulk_update(
+            updated_records, ["cycle_id"], batch_size=100
+        )
+        # Capture Issue Activity
+        issue_activity.delay(
+            type="cycle.activity.created",
+            requested_data=json.dumps({"cycles_list": issues}),
+            actor_id=str(self.request.user.id),
+            issue_id=None,
+            project_id=str(self.kwargs.get("project_id", None)),
+            current_instance=json.dumps(
+                {
+                    "updated_cycle_issues": update_cycle_issue_activity,
+                    "created_cycle_issues": serializers.serialize(
+                        "json", created_records
+                    ),
+                }
+            ),
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        return Response({"message": "success"}, status=status.HTTP_201_CREATED)
+
+    def destroy(self, request, slug, project_id, cycle_id, issue_id):
+        cycle_issue = CycleIssue.objects.get(
+            issue_id=issue_id,
+            workspace__slug=slug,
+            project_id=project_id,
+            cycle_id=cycle_id,
+        )
+        issue_activity.delay(
+            type="cycle.activity.deleted",
+            requested_data=json.dumps(
+                {
+                    "cycle_id": str(self.kwargs.get("cycle_id")),
+                    "issues": [str(issue_id)],
+                }
+            ),
+            actor_id=str(self.request.user.id),
+            issue_id=str(issue_id),
+            project_id=str(self.kwargs.get("project_id", None)),
+            current_instance=None,
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        cycle_issue.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/dashboard/base.py

@@ -26,7 +26,7 @@ from rest_framework.response import Response
 from rest_framework import status
 
 # Module imports
-from . import BaseAPIView
+from .. import BaseAPIView
 from plane.db.models import (
     Issue,
     IssueActivity,

apiserver/plane/app/views/estimate/base.py

@@ -3,7 +3,7 @@ from rest_framework.response import Response
 from rest_framework import status
 
 # Module imports
-from .base import BaseViewSet, BaseAPIView
+from ..base import BaseViewSet, BaseAPIView
 from plane.app.permissions import ProjectEntityPermission
 from plane.db.models import Project, Estimate, EstimatePoint
 from plane.app.serializers import (

apiserver/plane/app/views/exporter/base.py

@@ -3,7 +3,7 @@ from rest_framework.response import Response
 from rest_framework import status
 
 # Module imports
-from . import BaseAPIView
+from .. import BaseAPIView
 from plane.app.permissions import WorkSpaceAdminPermission
 from plane.bgtasks.export_task import issue_export_task
 from plane.db.models import Project, ExporterHistory, Workspace

apiserver/plane/app/views/external/base.py

@@ -10,7 +10,7 @@ from rest_framework import status
 # Django imports
 
 # Module imports
-from .base import BaseAPIView
+from ..base import BaseAPIView
 from plane.app.permissions import ProjectEntityPermission
 from plane.db.models import Workspace, Project
 from plane.app.serializers import (

apiserver/plane/app/views/inbox/base.py

@@ -15,7 +15,7 @@ from rest_framework import status
 from rest_framework.response import Response
 
 # Module imports
-from .base import BaseViewSet
+from ..base import BaseViewSet
 from plane.app.permissions import ProjectBasePermission, ProjectLitePermission
 from plane.db.models import (
     Inbox,

apiserver/plane/app/views/issue/activity.py

@@ -0,0 +1,85 @@
+# Python imports
+from itertools import chain
+
+# Django imports
+from django.db.models import (
+    Prefetch,
+    Q,
+)
+from django.utils.decorators import method_decorator
+from django.views.decorators.gzip import gzip_page
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseAPIView
+from plane.app.serializers import (
+    IssueActivitySerializer,
+    IssueCommentSerializer,
+)
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import (
+    IssueActivity,
+    IssueComment,
+    CommentReaction,
+)
+
+
+class IssueActivityEndpoint(BaseAPIView):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    @method_decorator(gzip_page)
+    def get(self, request, slug, project_id, issue_id):
+        filters = {}
+        if request.GET.get("created_at__gt", None) is not None:
+            filters = {"created_at__gt": request.GET.get("created_at__gt")}
+
+        issue_activities = (
+            IssueActivity.objects.filter(issue_id=issue_id)
+            .filter(
+                ~Q(field__in=["comment", "vote", "reaction", "draft"]),
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+                workspace__slug=slug,
+            )
+            .filter(**filters)
+            .select_related("actor", "workspace", "issue", "project")
+        ).order_by("created_at")
+        issue_comments = (
+            IssueComment.objects.filter(issue_id=issue_id)
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+                workspace__slug=slug,
+            )
+            .filter(**filters)
+            .order_by("created_at")
+            .select_related("actor", "issue", "project", "workspace")
+            .prefetch_related(
+                Prefetch(
+                    "comment_reactions",
+                    queryset=CommentReaction.objects.select_related("actor"),
+                )
+            )
+        )
+        issue_activities = IssueActivitySerializer(
+            issue_activities, many=True
+        ).data
+        issue_comments = IssueCommentSerializer(issue_comments, many=True).data
+
+        if request.GET.get("activity_type", None) == "issue-property":
+            return Response(issue_activities, status=status.HTTP_200_OK)
+
+        if request.GET.get("activity_type", None) == "issue-comment":
+            return Response(issue_comments, status=status.HTTP_200_OK)
+
+        result_list = sorted(
+            chain(issue_activities, issue_comments),
+            key=lambda instance: instance["created_at"],
+        )
+
+        return Response(result_list, status=status.HTTP_200_OK)

apiserver/plane/app/views/issue/archive.py

@@ -0,0 +1,347 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.db.models import (
+    Prefetch,
+    OuterRef,
+    Func,
+    F,
+    Q,
+    Case,
+    Value,
+    CharField,
+    When,
+    Exists,
+    Max,
+    UUIDField,
+)
+from django.core.serializers.json import DjangoJSONEncoder
+from django.utils.decorators import method_decorator
+from django.views.decorators.gzip import gzip_page
+from django.contrib.postgres.aggregates import ArrayAgg
+from django.contrib.postgres.fields import ArrayField
+from django.db.models.functions import Coalesce
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet
+from plane.app.serializers import (
+    IssueSerializer,
+    IssueFlatSerializer,
+    IssueDetailSerializer,
+)
+from plane.app.permissions import (
+    ProjectEntityPermission,
+)
+from plane.db.models import (
+    Issue,
+    IssueLink,
+    IssueAttachment,
+    IssueSubscriber,
+    IssueReaction,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+from plane.utils.issue_filters import issue_filters
+
+
+class IssueArchiveViewSet(BaseViewSet):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+    serializer_class = IssueFlatSerializer
+    model = Issue
+
+    def get_queryset(self):
+        return (
+            Issue.objects.annotate(
+                sub_issues_count=Issue.objects.filter(parent=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .filter(archived_at__isnull=False)
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related("assignees", "labels", "issue_module__module")
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+        )
+
+    @method_decorator(gzip_page)
+    def list(self, request, slug, project_id):
+        filters = issue_filters(request.query_params, "GET")
+        show_sub_issues = request.GET.get("show_sub_issues", "true")
+
+        # Custom ordering for priority and state
+        priority_order = ["urgent", "high", "medium", "low", "none"]
+        state_order = [
+            "backlog",
+            "unstarted",
+            "started",
+            "completed",
+            "cancelled",
+        ]
+
+        order_by_param = request.GET.get("order_by", "-created_at")
+
+        issue_queryset = self.get_queryset().filter(**filters)
+
+        # Priority Ordering
+        if order_by_param == "priority" or order_by_param == "-priority":
+            priority_order = (
+                priority_order
+                if order_by_param == "priority"
+                else priority_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                priority_order=Case(
+                    *[
+                        When(priority=p, then=Value(i))
+                        for i, p in enumerate(priority_order)
+                    ],
+                    output_field=CharField(),
+                )
+            ).order_by("priority_order")
+
+        # State Ordering
+        elif order_by_param in [
+            "state__name",
+            "state__group",
+            "-state__name",
+            "-state__group",
+        ]:
+            state_order = (
+                state_order
+                if order_by_param in ["state__name", "state__group"]
+                else state_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                state_order=Case(
+                    *[
+                        When(state__group=state_group, then=Value(i))
+                        for i, state_group in enumerate(state_order)
+                    ],
+                    default=Value(len(state_order)),
+                    output_field=CharField(),
+                )
+            ).order_by("state_order")
+        # assignee and label ordering
+        elif order_by_param in [
+            "labels__name",
+            "-labels__name",
+            "assignees__first_name",
+            "-assignees__first_name",
+        ]:
+            issue_queryset = issue_queryset.annotate(
+                max_values=Max(
+                    order_by_param[1::]
+                    if order_by_param.startswith("-")
+                    else order_by_param
+                )
+            ).order_by(
+                "-max_values"
+                if order_by_param.startswith("-")
+                else "max_values"
+            )
+        else:
+            issue_queryset = issue_queryset.order_by(order_by_param)
+
+        issue_queryset = (
+            issue_queryset
+            if show_sub_issues == "true"
+            else issue_queryset.filter(parent__isnull=True)
+        )
+        if self.expand or self.fields:
+            issues = IssueSerializer(
+                issue_queryset,
+                many=True,
+                fields=self.fields,
+            ).data
+        else:
+            issues = issue_queryset.values(
+                "id",
+                "name",
+                "state_id",
+                "sort_order",
+                "completed_at",
+                "estimate_point",
+                "priority",
+                "start_date",
+                "target_date",
+                "sequence_id",
+                "project_id",
+                "parent_id",
+                "cycle_id",
+                "module_ids",
+                "label_ids",
+                "assignee_ids",
+                "sub_issues_count",
+                "created_at",
+                "updated_at",
+                "created_by",
+                "updated_by",
+                "attachment_count",
+                "link_count",
+                "is_draft",
+                "archived_at",
+            )
+        return Response(issues, status=status.HTTP_200_OK)
+
+    def retrieve(self, request, slug, project_id, pk=None):
+        issue = (
+            self.get_queryset()
+            .filter(pk=pk)
+            .prefetch_related(
+                Prefetch(
+                    "issue_reactions",
+                    queryset=IssueReaction.objects.select_related(
+                        "issue", "actor"
+                    ),
+                )
+            )
+            .prefetch_related(
+                Prefetch(
+                    "issue_attachment",
+                    queryset=IssueAttachment.objects.select_related("issue"),
+                )
+            )
+            .prefetch_related(
+                Prefetch(
+                    "issue_link",
+                    queryset=IssueLink.objects.select_related("created_by"),
+                )
+            )
+            .annotate(
+                is_subscribed=Exists(
+                    IssueSubscriber.objects.filter(
+                        workspace__slug=slug,
+                        project_id=project_id,
+                        issue_id=OuterRef("pk"),
+                        subscriber=request.user,
+                    )
+                )
+            )
+        ).first()
+        if not issue:
+            return Response(
+                {"error": "The required object does not exist."},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+        serializer = IssueDetailSerializer(issue, expand=self.expand)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def archive(self, request, slug, project_id, pk=None):
+        issue = Issue.issue_objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            pk=pk,
+        )
+        if issue.state.group not in ["completed", "cancelled"]:
+            return Response(
+                {
+                    "error": "Can only archive completed or cancelled state group issue"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        issue_activity.delay(
+            type="issue.activity.updated",
+            requested_data=json.dumps(
+                {
+                    "archived_at": str(timezone.now().date()),
+                    "automation": False,
+                }
+            ),
+            actor_id=str(request.user.id),
+            issue_id=str(issue.id),
+            project_id=str(project_id),
+            current_instance=json.dumps(
+                IssueSerializer(issue).data, cls=DjangoJSONEncoder
+            ),
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        issue.archived_at = timezone.now().date()
+        issue.save()
+
+        return Response(
+            {"archived_at": str(issue.archived_at)}, status=status.HTTP_200_OK
+        )
+
+    def unarchive(self, request, slug, project_id, pk=None):
+        issue = Issue.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            archived_at__isnull=False,
+            pk=pk,
+        )
+        issue_activity.delay(
+            type="issue.activity.updated",
+            requested_data=json.dumps({"archived_at": None}),
+            actor_id=str(request.user.id),
+            issue_id=str(issue.id),
+            project_id=str(project_id),
+            current_instance=json.dumps(
+                IssueSerializer(issue).data, cls=DjangoJSONEncoder
+            ),
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        issue.archived_at = None
+        issue.save()
+
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/issue/attachment.py

@@ -0,0 +1,73 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.core.serializers.json import DjangoJSONEncoder
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+from rest_framework.parsers import MultiPartParser, FormParser
+
+# Module imports
+from .. import BaseAPIView
+from plane.app.serializers import IssueAttachmentSerializer
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import IssueAttachment
+from plane.bgtasks.issue_activites_task import issue_activity
+
+
+class IssueAttachmentEndpoint(BaseAPIView):
+    serializer_class = IssueAttachmentSerializer
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+    model = IssueAttachment
+    parser_classes = (MultiPartParser, FormParser)
+
+    def post(self, request, slug, project_id, issue_id):
+        serializer = IssueAttachmentSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save(project_id=project_id, issue_id=issue_id)
+            issue_activity.delay(
+                type="attachment.activity.created",
+                requested_data=None,
+                actor_id=str(self.request.user.id),
+                issue_id=str(self.kwargs.get("issue_id", None)),
+                project_id=str(self.kwargs.get("project_id", None)),
+                current_instance=json.dumps(
+                    serializer.data,
+                    cls=DjangoJSONEncoder,
+                ),
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def delete(self, request, slug, project_id, issue_id, pk):
+        issue_attachment = IssueAttachment.objects.get(pk=pk)
+        issue_attachment.asset.delete(save=False)
+        issue_attachment.delete()
+        issue_activity.delay(
+            type="attachment.activity.deleted",
+            requested_data=None,
+            actor_id=str(self.request.user.id),
+            issue_id=str(self.kwargs.get("issue_id", None)),
+            project_id=str(self.kwargs.get("project_id", None)),
+            current_instance=None,
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+    def get(self, request, slug, project_id, issue_id):
+        issue_attachments = IssueAttachment.objects.filter(
+            issue_id=issue_id, workspace__slug=slug, project_id=project_id
+        )
+        serializer = IssueAttachmentSerializer(issue_attachments, many=True)
+        return Response(serializer.data, status=status.HTTP_200_OK)

apiserver/plane/app/views/issue/base.py

@@ -0,0 +1,686 @@
+# Python imports
+import json
+import random
+from itertools import chain
+
+# Django imports
+from django.utils import timezone
+from django.db.models import (
+    Prefetch,
+    OuterRef,
+    Func,
+    F,
+    Q,
+    Case,
+    Value,
+    CharField,
+    When,
+    Exists,
+    Max,
+)
+from django.core.serializers.json import DjangoJSONEncoder
+from django.utils.decorators import method_decorator
+from django.views.decorators.gzip import gzip_page
+from django.db import IntegrityError
+from django.contrib.postgres.aggregates import ArrayAgg
+from django.contrib.postgres.fields import ArrayField
+from django.db.models import Value, UUIDField
+from django.db.models.functions import Coalesce
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+from rest_framework.parsers import MultiPartParser, FormParser
+
+# Module imports
+from .. import BaseViewSet, BaseAPIView, WebhookMixin
+from plane.app.serializers import (
+    IssueActivitySerializer,
+    IssueCommentSerializer,
+    IssuePropertySerializer,
+    IssueSerializer,
+    IssueCreateSerializer,
+    LabelSerializer,
+    IssueFlatSerializer,
+    IssueLinkSerializer,
+    IssueLiteSerializer,
+    IssueAttachmentSerializer,
+    IssueSubscriberSerializer,
+    ProjectMemberLiteSerializer,
+    IssueReactionSerializer,
+    CommentReactionSerializer,
+    IssueRelationSerializer,
+    RelatedIssueSerializer,
+    IssueDetailSerializer,
+)
+from plane.app.permissions import (
+    ProjectEntityPermission,
+    WorkSpaceAdminPermission,
+    ProjectMemberPermission,
+    ProjectLitePermission,
+)
+from plane.db.models import (
+    Project,
+    Issue,
+    IssueActivity,
+    IssueComment,
+    IssueProperty,
+    Label,
+    IssueLink,
+    IssueAttachment,
+    IssueSubscriber,
+    ProjectMember,
+    IssueReaction,
+    CommentReaction,
+    IssueRelation,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+from plane.utils.grouper import group_results
+from plane.utils.issue_filters import issue_filters
+from collections import defaultdict
+from plane.utils.cache import invalidate_cache
+
+class IssueListEndpoint(BaseAPIView):
+
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def get(self, request, slug, project_id):
+        issue_ids = request.GET.get("issues", False)
+
+        if not issue_ids:
+            return Response(
+                {"error": "Issues are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        issue_ids = [
+            issue_id for issue_id in issue_ids.split(",") if issue_id != ""
+        ]
+
+        queryset = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug, project_id=project_id, pk__in=issue_ids
+            )
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related("assignees", "labels", "issue_module__module")
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+        ).distinct()
+
+        filters = issue_filters(request.query_params, "GET")
+
+        # Custom ordering for priority and state
+        priority_order = ["urgent", "high", "medium", "low", "none"]
+        state_order = [
+            "backlog",
+            "unstarted",
+            "started",
+            "completed",
+            "cancelled",
+        ]
+
+        order_by_param = request.GET.get("order_by", "-created_at")
+
+        issue_queryset = queryset.filter(**filters)
+
+        # Priority Ordering
+        if order_by_param == "priority" or order_by_param == "-priority":
+            priority_order = (
+                priority_order
+                if order_by_param == "priority"
+                else priority_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                priority_order=Case(
+                    *[
+                        When(priority=p, then=Value(i))
+                        for i, p in enumerate(priority_order)
+                    ],
+                    output_field=CharField(),
+                )
+            ).order_by("priority_order")
+
+        # State Ordering
+        elif order_by_param in [
+            "state__name",
+            "state__group",
+            "-state__name",
+            "-state__group",
+        ]:
+            state_order = (
+                state_order
+                if order_by_param in ["state__name", "state__group"]
+                else state_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                state_order=Case(
+                    *[
+                        When(state__group=state_group, then=Value(i))
+                        for i, state_group in enumerate(state_order)
+                    ],
+                    default=Value(len(state_order)),
+                    output_field=CharField(),
+                )
+            ).order_by("state_order")
+        # assignee and label ordering
+        elif order_by_param in [
+            "labels__name",
+            "-labels__name",
+            "assignees__first_name",
+            "-assignees__first_name",
+        ]:
+            issue_queryset = issue_queryset.annotate(
+                max_values=Max(
+                    order_by_param[1::]
+                    if order_by_param.startswith("-")
+                    else order_by_param
+                )
+            ).order_by(
+                "-max_values"
+                if order_by_param.startswith("-")
+                else "max_values"
+            )
+        else:
+            issue_queryset = issue_queryset.order_by(order_by_param)
+
+        if self.fields or self.expand:
+            issues = IssueSerializer(
+                queryset, many=True, fields=self.fields, expand=self.expand
+            ).data
+        else:
+            issues = issue_queryset.values(
+                "id",
+                "name",
+                "state_id",
+                "sort_order",
+                "completed_at",
+                "estimate_point",
+                "priority",
+                "start_date",
+                "target_date",
+                "sequence_id",
+                "project_id",
+                "parent_id",
+                "cycle_id",
+                "module_ids",
+                "label_ids",
+                "assignee_ids",
+                "sub_issues_count",
+                "created_at",
+                "updated_at",
+                "created_by",
+                "updated_by",
+                "attachment_count",
+                "link_count",
+                "is_draft",
+                "archived_at",
+            )
+        return Response(issues, status=status.HTTP_200_OK)
+
+
+class IssueViewSet(WebhookMixin, BaseViewSet):
+    def get_serializer_class(self):
+        return (
+            IssueCreateSerializer
+            if self.action in ["create", "update", "partial_update"]
+            else IssueSerializer
+        )
+
+    model = Issue
+    webhook_event = "issue"
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    search_fields = [
+        "name",
+    ]
+
+    filterset_fields = [
+        "state__name",
+        "assignees__id",
+        "workspace__id",
+    ]
+
+    def get_queryset(self):
+        return (
+            Issue.issue_objects.filter(
+                project_id=self.kwargs.get("project_id")
+            )
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related("assignees", "labels", "issue_module__module")
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+        ).distinct()
+
+    @method_decorator(gzip_page)
+    def list(self, request, slug, project_id):
+        filters = issue_filters(request.query_params, "GET")
+        order_by_param = request.GET.get("order_by", "-created_at")
+
+        issue_queryset = self.get_queryset().filter(**filters)
+        # Custom ordering for priority and state
+        priority_order = ["urgent", "high", "medium", "low", "none"]
+        state_order = [
+            "backlog",
+            "unstarted",
+            "started",
+            "completed",
+            "cancelled",
+        ]
+
+        # Priority Ordering
+        if order_by_param == "priority" or order_by_param == "-priority":
+            priority_order = (
+                priority_order
+                if order_by_param == "priority"
+                else priority_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                priority_order=Case(
+                    *[
+                        When(priority=p, then=Value(i))
+                        for i, p in enumerate(priority_order)
+                    ],
+                    output_field=CharField(),
+                )
+            ).order_by("priority_order")
+
+        # State Ordering
+        elif order_by_param in [
+            "state__name",
+            "state__group",
+            "-state__name",
+            "-state__group",
+        ]:
+            state_order = (
+                state_order
+                if order_by_param in ["state__name", "state__group"]
+                else state_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                state_order=Case(
+                    *[
+                        When(state__group=state_group, then=Value(i))
+                        for i, state_group in enumerate(state_order)
+                    ],
+                    default=Value(len(state_order)),
+                    output_field=CharField(),
+                )
+            ).order_by("state_order")
+        # assignee and label ordering
+        elif order_by_param in [
+            "labels__name",
+            "-labels__name",
+            "assignees__first_name",
+            "-assignees__first_name",
+        ]:
+            issue_queryset = issue_queryset.annotate(
+                max_values=Max(
+                    order_by_param[1::]
+                    if order_by_param.startswith("-")
+                    else order_by_param
+                )
+            ).order_by(
+                "-max_values"
+                if order_by_param.startswith("-")
+                else "max_values"
+            )
+        else:
+            issue_queryset = issue_queryset.order_by(order_by_param)
+
+        # Only use serializer when expand or fields else return by values
+        if self.expand or self.fields:
+            issues = IssueSerializer(
+                issue_queryset,
+                many=True,
+                fields=self.fields,
+                expand=self.expand,
+            ).data
+        else:
+            issues = issue_queryset.values(
+                "id",
+                "name",
+                "state_id",
+                "sort_order",
+                "completed_at",
+                "estimate_point",
+                "priority",
+                "start_date",
+                "target_date",
+                "sequence_id",
+                "project_id",
+                "parent_id",
+                "cycle_id",
+                "module_ids",
+                "label_ids",
+                "assignee_ids",
+                "sub_issues_count",
+                "created_at",
+                "updated_at",
+                "created_by",
+                "updated_by",
+                "attachment_count",
+                "link_count",
+                "is_draft",
+                "archived_at",
+            )
+        return Response(issues, status=status.HTTP_200_OK)
+
+    def create(self, request, slug, project_id):
+        project = Project.objects.get(pk=project_id)
+
+        serializer = IssueCreateSerializer(
+            data=request.data,
+            context={
+                "project_id": project_id,
+                "workspace_id": project.workspace_id,
+                "default_assignee_id": project.default_assignee_id,
+            },
+        )
+
+        if serializer.is_valid():
+            serializer.save()
+
+            # Track the issue
+            issue_activity.delay(
+                type="issue.activity.created",
+                requested_data=json.dumps(
+                    self.request.data, cls=DjangoJSONEncoder
+                ),
+                actor_id=str(request.user.id),
+                issue_id=str(serializer.data.get("id", None)),
+                project_id=str(project_id),
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            issue = (
+                self.get_queryset()
+                .filter(pk=serializer.data["id"])
+                .values(
+                    "id",
+                    "name",
+                    "state_id",
+                    "sort_order",
+                    "completed_at",
+                    "estimate_point",
+                    "priority",
+                    "start_date",
+                    "target_date",
+                    "sequence_id",
+                    "project_id",
+                    "parent_id",
+                    "cycle_id",
+                    "module_ids",
+                    "label_ids",
+                    "assignee_ids",
+                    "sub_issues_count",
+                    "created_at",
+                    "updated_at",
+                    "created_by",
+                    "updated_by",
+                    "attachment_count",
+                    "link_count",
+                    "is_draft",
+                    "archived_at",
+                )
+                .first()
+            )
+            return Response(issue, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def retrieve(self, request, slug, project_id, pk=None):
+        issue = (
+            self.get_queryset()
+            .filter(pk=pk)
+            .prefetch_related(
+                Prefetch(
+                    "issue_reactions",
+                    queryset=IssueReaction.objects.select_related(
+                        "issue", "actor"
+                    ),
+                )
+            )
+            .prefetch_related(
+                Prefetch(
+                    "issue_attachment",
+                    queryset=IssueAttachment.objects.select_related("issue"),
+                )
+            )
+            .prefetch_related(
+                Prefetch(
+                    "issue_link",
+                    queryset=IssueLink.objects.select_related("created_by"),
+                )
+            )
+            .annotate(
+                is_subscribed=Exists(
+                    IssueSubscriber.objects.filter(
+                        workspace__slug=slug,
+                        project_id=project_id,
+                        issue_id=OuterRef("pk"),
+                        subscriber=request.user,
+                    )
+                )
+            )
+        ).first()
+        if not issue:
+            return Response(
+                {"error": "The required object does not exist."},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+
+        serializer = IssueDetailSerializer(issue, expand=self.expand)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def partial_update(self, request, slug, project_id, pk=None):
+        issue = self.get_queryset().filter(pk=pk).first()
+
+        if not issue:
+            return Response(
+                {"error": "Issue not found"},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+
+        current_instance = json.dumps(
+            IssueSerializer(issue).data, cls=DjangoJSONEncoder
+        )
+
+        requested_data = json.dumps(self.request.data, cls=DjangoJSONEncoder)
+        serializer = IssueCreateSerializer(
+            issue, data=request.data, partial=True
+        )
+        if serializer.is_valid():
+            serializer.save()
+            issue_activity.delay(
+                type="issue.activity.updated",
+                requested_data=requested_data,
+                actor_id=str(request.user.id),
+                issue_id=str(pk),
+                project_id=str(project_id),
+                current_instance=current_instance,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            issue = self.get_queryset().filter(pk=pk).first()
+            return Response(status=status.HTTP_204_NO_CONTENT)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def destroy(self, request, slug, project_id, pk=None):
+        issue = Issue.objects.get(
+            workspace__slug=slug, project_id=project_id, pk=pk
+        )
+        issue.delete()
+        issue_activity.delay(
+            type="issue.activity.deleted",
+            requested_data=json.dumps({"issue_id": str(pk)}),
+            actor_id=str(request.user.id),
+            issue_id=str(pk),
+            project_id=str(project_id),
+            current_instance={},
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class IssueUserDisplayPropertyEndpoint(BaseAPIView):
+    permission_classes = [
+        ProjectLitePermission,
+    ]
+
+    def patch(self, request, slug, project_id):
+        issue_property = IssueProperty.objects.get(
+            user=request.user,
+            project_id=project_id,
+        )
+
+        issue_property.filters = request.data.get(
+            "filters", issue_property.filters
+        )
+        issue_property.display_filters = request.data.get(
+            "display_filters", issue_property.display_filters
+        )
+        issue_property.display_properties = request.data.get(
+            "display_properties", issue_property.display_properties
+        )
+        issue_property.save()
+        serializer = IssuePropertySerializer(issue_property)
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+    def get(self, request, slug, project_id):
+        issue_property, _ = IssueProperty.objects.get_or_create(
+            user=request.user, project_id=project_id
+        )
+        serializer = IssuePropertySerializer(issue_property)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+
+class BulkDeleteIssuesEndpoint(BaseAPIView):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def delete(self, request, slug, project_id):
+        issue_ids = request.data.get("issue_ids", [])
+
+        if not len(issue_ids):
+            return Response(
+                {"error": "Issue IDs are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        issues = Issue.issue_objects.filter(
+            workspace__slug=slug, project_id=project_id, pk__in=issue_ids
+        )
+
+        total_issues = len(issues)
+
+        issues.delete()
+
+        return Response(
+            {"message": f"{total_issues} issues were deleted"},
+            status=status.HTTP_200_OK,
+        )

apiserver/plane/app/views/issue/comment.py

@@ -0,0 +1,219 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.db.models import Exists
+from django.core.serializers.json import DjangoJSONEncoder
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet, WebhookMixin
+from plane.app.serializers import (
+    IssueCommentSerializer,
+    CommentReactionSerializer,
+)
+from plane.app.permissions import ProjectLitePermission
+from plane.db.models import (
+    IssueComment,
+    ProjectMember,
+    CommentReaction,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+
+
+class IssueCommentViewSet(WebhookMixin, BaseViewSet):
+    serializer_class = IssueCommentSerializer
+    model = IssueComment
+    webhook_event = "issue_comment"
+    permission_classes = [
+        ProjectLitePermission,
+    ]
+
+    filterset_fields = [
+        "issue__id",
+        "workspace__id",
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(issue_id=self.kwargs.get("issue_id"))
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("issue")
+            .annotate(
+                is_member=Exists(
+                    ProjectMember.objects.filter(
+                        workspace__slug=self.kwargs.get("slug"),
+                        project_id=self.kwargs.get("project_id"),
+                        member_id=self.request.user.id,
+                        is_active=True,
+                    )
+                )
+            )
+            .distinct()
+        )
+
+    def create(self, request, slug, project_id, issue_id):
+        serializer = IssueCommentSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save(
+                project_id=project_id,
+                issue_id=issue_id,
+                actor=request.user,
+            )
+            issue_activity.delay(
+                type="comment.activity.created",
+                requested_data=json.dumps(
+                    serializer.data, cls=DjangoJSONEncoder
+                ),
+                actor_id=str(self.request.user.id),
+                issue_id=str(self.kwargs.get("issue_id")),
+                project_id=str(self.kwargs.get("project_id")),
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def partial_update(self, request, slug, project_id, issue_id, pk):
+        issue_comment = IssueComment.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            issue_id=issue_id,
+            pk=pk,
+        )
+        requested_data = json.dumps(self.request.data, cls=DjangoJSONEncoder)
+        current_instance = json.dumps(
+            IssueCommentSerializer(issue_comment).data,
+            cls=DjangoJSONEncoder,
+        )
+        serializer = IssueCommentSerializer(
+            issue_comment, data=request.data, partial=True
+        )
+        if serializer.is_valid():
+            serializer.save()
+            issue_activity.delay(
+                type="comment.activity.updated",
+                requested_data=requested_data,
+                actor_id=str(request.user.id),
+                issue_id=str(issue_id),
+                project_id=str(project_id),
+                current_instance=current_instance,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(serializer.data, status=status.HTTP_200_OK)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def destroy(self, request, slug, project_id, issue_id, pk):
+        issue_comment = IssueComment.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            issue_id=issue_id,
+            pk=pk,
+        )
+        current_instance = json.dumps(
+            IssueCommentSerializer(issue_comment).data,
+            cls=DjangoJSONEncoder,
+        )
+        issue_comment.delete()
+        issue_activity.delay(
+            type="comment.activity.deleted",
+            requested_data=json.dumps({"comment_id": str(pk)}),
+            actor_id=str(request.user.id),
+            issue_id=str(issue_id),
+            project_id=str(project_id),
+            current_instance=current_instance,
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class CommentReactionViewSet(BaseViewSet):
+    serializer_class = CommentReactionSerializer
+    model = CommentReaction
+    permission_classes = [
+        ProjectLitePermission,
+    ]
+
+    def get_queryset(self):
+        return (
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(comment_id=self.kwargs.get("comment_id"))
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .order_by("-created_at")
+            .distinct()
+        )
+
+    def create(self, request, slug, project_id, comment_id):
+        serializer = CommentReactionSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save(
+                project_id=project_id,
+                actor_id=request.user.id,
+                comment_id=comment_id,
+            )
+            issue_activity.delay(
+                type="comment_reaction.activity.created",
+                requested_data=json.dumps(request.data, cls=DjangoJSONEncoder),
+                actor_id=str(request.user.id),
+                issue_id=None,
+                project_id=str(project_id),
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def destroy(self, request, slug, project_id, comment_id, reaction_code):
+        comment_reaction = CommentReaction.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            comment_id=comment_id,
+            reaction=reaction_code,
+            actor=request.user,
+        )
+        issue_activity.delay(
+            type="comment_reaction.activity.deleted",
+            requested_data=None,
+            actor_id=str(self.request.user.id),
+            issue_id=None,
+            project_id=str(self.kwargs.get("project_id", None)),
+            current_instance=json.dumps(
+                {
+                    "reaction": str(reaction_code),
+                    "identifier": str(comment_reaction.id),
+                    "comment_id": str(comment_id),
+                }
+            ),
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        comment_reaction.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/issue/draft.py

@@ -0,0 +1,367 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.db.models import (
+    Prefetch,
+    OuterRef,
+    Func,
+    F,
+    Q,
+    Case,
+    Value,
+    CharField,
+    When,
+    Exists,
+    Max,
+    UUIDField,
+)
+from django.core.serializers.json import DjangoJSONEncoder
+from django.utils.decorators import method_decorator
+from django.views.decorators.gzip import gzip_page
+from django.contrib.postgres.aggregates import ArrayAgg
+from django.contrib.postgres.fields import ArrayField
+from django.db.models.functions import Coalesce
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet
+from plane.app.serializers import (
+    IssueSerializer,
+    IssueCreateSerializer,
+    IssueFlatSerializer,
+    IssueDetailSerializer,
+)
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import (
+    Project,
+    Issue,
+    IssueLink,
+    IssueAttachment,
+    IssueSubscriber,
+    IssueReaction,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+from plane.utils.issue_filters import issue_filters
+
+
+class IssueDraftViewSet(BaseViewSet):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+    serializer_class = IssueFlatSerializer
+    model = Issue
+
+    def get_queryset(self):
+        return (
+            Issue.objects.filter(project_id=self.kwargs.get("project_id"))
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(is_draft=True)
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related("assignees", "labels", "issue_module__module")
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+        ).distinct()
+
+    @method_decorator(gzip_page)
+    def list(self, request, slug, project_id):
+        filters = issue_filters(request.query_params, "GET")
+        fields = [
+            field
+            for field in request.GET.get("fields", "").split(",")
+            if field
+        ]
+
+        # Custom ordering for priority and state
+        priority_order = ["urgent", "high", "medium", "low", "none"]
+        state_order = [
+            "backlog",
+            "unstarted",
+            "started",
+            "completed",
+            "cancelled",
+        ]
+
+        order_by_param = request.GET.get("order_by", "-created_at")
+
+        issue_queryset = self.get_queryset().filter(**filters)
+
+        # Priority Ordering
+        if order_by_param == "priority" or order_by_param == "-priority":
+            priority_order = (
+                priority_order
+                if order_by_param == "priority"
+                else priority_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                priority_order=Case(
+                    *[
+                        When(priority=p, then=Value(i))
+                        for i, p in enumerate(priority_order)
+                    ],
+                    output_field=CharField(),
+                )
+            ).order_by("priority_order")
+
+        # State Ordering
+        elif order_by_param in [
+            "state__name",
+            "state__group",
+            "-state__name",
+            "-state__group",
+        ]:
+            state_order = (
+                state_order
+                if order_by_param in ["state__name", "state__group"]
+                else state_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                state_order=Case(
+                    *[
+                        When(state__group=state_group, then=Value(i))
+                        for i, state_group in enumerate(state_order)
+                    ],
+                    default=Value(len(state_order)),
+                    output_field=CharField(),
+                )
+            ).order_by("state_order")
+        # assignee and label ordering
+        elif order_by_param in [
+            "labels__name",
+            "-labels__name",
+            "assignees__first_name",
+            "-assignees__first_name",
+        ]:
+            issue_queryset = issue_queryset.annotate(
+                max_values=Max(
+                    order_by_param[1::]
+                    if order_by_param.startswith("-")
+                    else order_by_param
+                )
+            ).order_by(
+                "-max_values"
+                if order_by_param.startswith("-")
+                else "max_values"
+            )
+        else:
+            issue_queryset = issue_queryset.order_by(order_by_param)
+
+        # Only use serializer when expand else return by values
+        if self.expand or self.fields:
+            issues = IssueSerializer(
+                issue_queryset,
+                many=True,
+                fields=self.fields,
+                expand=self.expand,
+            ).data
+        else:
+            issues = issue_queryset.values(
+                "id",
+                "name",
+                "state_id",
+                "sort_order",
+                "completed_at",
+                "estimate_point",
+                "priority",
+                "start_date",
+                "target_date",
+                "sequence_id",
+                "project_id",
+                "parent_id",
+                "cycle_id",
+                "module_ids",
+                "label_ids",
+                "assignee_ids",
+                "sub_issues_count",
+                "created_at",
+                "updated_at",
+                "created_by",
+                "updated_by",
+                "attachment_count",
+                "link_count",
+                "is_draft",
+                "archived_at",
+            )
+        return Response(issues, status=status.HTTP_200_OK)
+
+    def create(self, request, slug, project_id):
+        project = Project.objects.get(pk=project_id)
+
+        serializer = IssueCreateSerializer(
+            data=request.data,
+            context={
+                "project_id": project_id,
+                "workspace_id": project.workspace_id,
+                "default_assignee_id": project.default_assignee_id,
+            },
+        )
+
+        if serializer.is_valid():
+            serializer.save(is_draft=True)
+
+            # Track the issue
+            issue_activity.delay(
+                type="issue_draft.activity.created",
+                requested_data=json.dumps(
+                    self.request.data, cls=DjangoJSONEncoder
+                ),
+                actor_id=str(request.user.id),
+                issue_id=str(serializer.data.get("id", None)),
+                project_id=str(project_id),
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            issue = (
+                self.get_queryset().filter(pk=serializer.data["id"]).first()
+            )
+            return Response(
+                IssueSerializer(issue).data, status=status.HTTP_201_CREATED
+            )
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def partial_update(self, request, slug, project_id, pk):
+        issue = self.get_queryset().filter(pk=pk).first()
+
+        if not issue:
+            return Response(
+                {"error": "Issue does not exist"},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+
+        serializer = IssueCreateSerializer(
+            issue, data=request.data, partial=True
+        )
+
+        if serializer.is_valid():
+            serializer.save()
+            issue_activity.delay(
+                type="issue_draft.activity.updated",
+                requested_data=json.dumps(request.data, cls=DjangoJSONEncoder),
+                actor_id=str(self.request.user.id),
+                issue_id=str(self.kwargs.get("pk", None)),
+                project_id=str(self.kwargs.get("project_id", None)),
+                current_instance=json.dumps(
+                    IssueSerializer(issue).data,
+                    cls=DjangoJSONEncoder,
+                ),
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(status=status.HTTP_204_NO_CONTENT)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def retrieve(self, request, slug, project_id, pk=None):
+        issue = (
+            self.get_queryset()
+            .filter(pk=pk)
+            .prefetch_related(
+                Prefetch(
+                    "issue_reactions",
+                    queryset=IssueReaction.objects.select_related(
+                        "issue", "actor"
+                    ),
+                )
+            )
+            .prefetch_related(
+                Prefetch(
+                    "issue_attachment",
+                    queryset=IssueAttachment.objects.select_related("issue"),
+                )
+            )
+            .prefetch_related(
+                Prefetch(
+                    "issue_link",
+                    queryset=IssueLink.objects.select_related("created_by"),
+                )
+            )
+            .annotate(
+                is_subscribed=Exists(
+                    IssueSubscriber.objects.filter(
+                        workspace__slug=slug,
+                        project_id=project_id,
+                        issue_id=OuterRef("pk"),
+                        subscriber=request.user,
+                    )
+                )
+            )
+        ).first()
+
+        if not issue:
+            return Response(
+                {"error": "The required object does not exist."},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+        serializer = IssueDetailSerializer(issue, expand=self.expand)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def destroy(self, request, slug, project_id, pk=None):
+        issue = Issue.objects.get(
+            workspace__slug=slug, project_id=project_id, pk=pk
+        )
+        issue.delete()
+        issue_activity.delay(
+            type="issue_draft.activity.deleted",
+            requested_data=json.dumps({"issue_id": str(pk)}),
+            actor_id=str(request.user.id),
+            issue_id=str(pk),
+            project_id=str(project_id),
+            current_instance={},
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/issue/label.py

@@ -0,0 +1,105 @@
+# Python imports
+import random
+
+# Django imports
+from django.db import IntegrityError
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet, BaseAPIView
+from plane.app.serializers import LabelSerializer
+from plane.app.permissions import (
+    ProjectMemberPermission,
+)
+from plane.db.models import (
+    Project,
+    Label,
+)
+from plane.utils.cache import invalidate_cache
+
+
+class LabelViewSet(BaseViewSet):
+    serializer_class = LabelSerializer
+    model = Label
+    permission_classes = [
+        ProjectMemberPermission,
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(project__project_projectmember__member=self.request.user)
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("parent")
+            .distinct()
+            .order_by("sort_order")
+        )
+
+    @invalidate_cache(
+        path="/api/workspaces/:slug/labels/", url_params=True, user=False
+    )
+    def create(self, request, slug, project_id):
+        try:
+            serializer = LabelSerializer(data=request.data)
+            if serializer.is_valid():
+                serializer.save(project_id=project_id)
+                return Response(
+                    serializer.data, status=status.HTTP_201_CREATED
+                )
+            return Response(
+                serializer.errors, status=status.HTTP_400_BAD_REQUEST
+            )
+        except IntegrityError:
+            return Response(
+                {
+                    "error": "Label with the same name already exists in the project"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+    @invalidate_cache(
+        path="/api/workspaces/:slug/labels/", url_params=True, user=False
+    )
+    def partial_update(self, request, *args, **kwargs):
+        return super().partial_update(request, *args, **kwargs)
+
+    @invalidate_cache(
+        path="/api/workspaces/:slug/labels/", url_params=True, user=False
+    )
+    def destroy(self, request, *args, **kwargs):
+        return super().destroy(request, *args, **kwargs)
+
+
+class BulkCreateIssueLabelsEndpoint(BaseAPIView):
+    def post(self, request, slug, project_id):
+        label_data = request.data.get("label_data", [])
+        project = Project.objects.get(pk=project_id)
+
+        labels = Label.objects.bulk_create(
+            [
+                Label(
+                    name=label.get("name", "Migrated"),
+                    description=label.get("description", "Migrated Issue"),
+                    color="#" + "%06x" % random.randint(0, 0xFFFFFF),
+                    project_id=project_id,
+                    workspace_id=project.workspace_id,
+                    created_by=request.user,
+                    updated_by=request.user,
+                )
+                for label in label_data
+            ],
+            batch_size=50,
+            ignore_conflicts=True,
+        )
+
+        return Response(
+            {"labels": LabelSerializer(labels, many=True).data},
+            status=status.HTTP_201_CREATED,
+        )

apiserver/plane/app/views/issue/link.py

@@ -0,0 +1,120 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.core.serializers.json import DjangoJSONEncoder
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet
+from plane.app.serializers import IssueLinkSerializer
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import IssueLink
+from plane.bgtasks.issue_activites_task import issue_activity
+
+
+class IssueLinkViewSet(BaseViewSet):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    model = IssueLink
+    serializer_class = IssueLinkSerializer
+
+    def get_queryset(self):
+        return (
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(issue_id=self.kwargs.get("issue_id"))
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .order_by("-created_at")
+            .distinct()
+        )
+
+    def create(self, request, slug, project_id, issue_id):
+        serializer = IssueLinkSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save(
+                project_id=project_id,
+                issue_id=issue_id,
+            )
+            issue_activity.delay(
+                type="link.activity.created",
+                requested_data=json.dumps(
+                    serializer.data, cls=DjangoJSONEncoder
+                ),
+                actor_id=str(self.request.user.id),
+                issue_id=str(self.kwargs.get("issue_id")),
+                project_id=str(self.kwargs.get("project_id")),
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def partial_update(self, request, slug, project_id, issue_id, pk):
+        issue_link = IssueLink.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            issue_id=issue_id,
+            pk=pk,
+        )
+        requested_data = json.dumps(request.data, cls=DjangoJSONEncoder)
+        current_instance = json.dumps(
+            IssueLinkSerializer(issue_link).data,
+            cls=DjangoJSONEncoder,
+        )
+        serializer = IssueLinkSerializer(
+            issue_link, data=request.data, partial=True
+        )
+        if serializer.is_valid():
+            serializer.save()
+            issue_activity.delay(
+                type="link.activity.updated",
+                requested_data=requested_data,
+                actor_id=str(request.user.id),
+                issue_id=str(issue_id),
+                project_id=str(project_id),
+                current_instance=current_instance,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(serializer.data, status=status.HTTP_200_OK)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def destroy(self, request, slug, project_id, issue_id, pk):
+        issue_link = IssueLink.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            issue_id=issue_id,
+            pk=pk,
+        )
+        current_instance = json.dumps(
+            IssueLinkSerializer(issue_link).data,
+            cls=DjangoJSONEncoder,
+        )
+        issue_activity.delay(
+            type="link.activity.deleted",
+            requested_data=json.dumps({"link_id": str(pk)}),
+            actor_id=str(request.user.id),
+            issue_id=str(issue_id),
+            project_id=str(project_id),
+            current_instance=current_instance,
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        issue_link.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/issue/reaction.py

@@ -0,0 +1,89 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.core.serializers.json import DjangoJSONEncoder
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet
+from plane.app.serializers import IssueReactionSerializer
+from plane.app.permissions import ProjectLitePermission
+from plane.db.models import IssueReaction
+from plane.bgtasks.issue_activites_task import issue_activity
+
+
+class IssueReactionViewSet(BaseViewSet):
+    serializer_class = IssueReactionSerializer
+    model = IssueReaction
+    permission_classes = [
+        ProjectLitePermission,
+    ]
+
+    def get_queryset(self):
+        return (
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(issue_id=self.kwargs.get("issue_id"))
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .order_by("-created_at")
+            .distinct()
+        )
+
+    def create(self, request, slug, project_id, issue_id):
+        serializer = IssueReactionSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save(
+                issue_id=issue_id,
+                project_id=project_id,
+                actor=request.user,
+            )
+            issue_activity.delay(
+                type="issue_reaction.activity.created",
+                requested_data=json.dumps(request.data, cls=DjangoJSONEncoder),
+                actor_id=str(request.user.id),
+                issue_id=str(issue_id),
+                project_id=str(project_id),
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def destroy(self, request, slug, project_id, issue_id, reaction_code):
+        issue_reaction = IssueReaction.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            issue_id=issue_id,
+            reaction=reaction_code,
+            actor=request.user,
+        )
+        issue_activity.delay(
+            type="issue_reaction.activity.deleted",
+            requested_data=None,
+            actor_id=str(self.request.user.id),
+            issue_id=str(self.kwargs.get("issue_id", None)),
+            project_id=str(self.kwargs.get("project_id", None)),
+            current_instance=json.dumps(
+                {
+                    "reaction": str(reaction_code),
+                    "identifier": str(issue_reaction.id),
+                }
+            ),
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        issue_reaction.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/issue/relation.py

@@ -0,0 +1,204 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.db.models import Q
+from django.core.serializers.json import DjangoJSONEncoder
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet
+from plane.app.serializers import (
+    IssueRelationSerializer,
+    RelatedIssueSerializer,
+)
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import (
+    Project,
+    IssueRelation,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+
+
+class IssueRelationViewSet(BaseViewSet):
+    serializer_class = IssueRelationSerializer
+    model = IssueRelation
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(issue_id=self.kwargs.get("issue_id"))
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("issue")
+            .distinct()
+        )
+
+    def list(self, request, slug, project_id, issue_id):
+        issue_relations = (
+            IssueRelation.objects.filter(
+                Q(issue_id=issue_id) | Q(related_issue=issue_id)
+            )
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("issue")
+            .order_by("-created_at")
+            .distinct()
+        )
+
+        blocking_issues = issue_relations.filter(
+            relation_type="blocked_by", related_issue_id=issue_id
+        )
+        blocked_by_issues = issue_relations.filter(
+            relation_type="blocked_by", issue_id=issue_id
+        )
+        duplicate_issues = issue_relations.filter(
+            issue_id=issue_id, relation_type="duplicate"
+        )
+        duplicate_issues_related = issue_relations.filter(
+            related_issue_id=issue_id, relation_type="duplicate"
+        )
+        relates_to_issues = issue_relations.filter(
+            issue_id=issue_id, relation_type="relates_to"
+        )
+        relates_to_issues_related = issue_relations.filter(
+            related_issue_id=issue_id, relation_type="relates_to"
+        )
+
+        blocked_by_issues_serialized = IssueRelationSerializer(
+            blocked_by_issues, many=True
+        ).data
+        duplicate_issues_serialized = IssueRelationSerializer(
+            duplicate_issues, many=True
+        ).data
+        relates_to_issues_serialized = IssueRelationSerializer(
+            relates_to_issues, many=True
+        ).data
+
+        # revere relation for blocked by issues
+        blocking_issues_serialized = RelatedIssueSerializer(
+            blocking_issues, many=True
+        ).data
+        # reverse relation for duplicate issues
+        duplicate_issues_related_serialized = RelatedIssueSerializer(
+            duplicate_issues_related, many=True
+        ).data
+        # reverse relation for related issues
+        relates_to_issues_related_serialized = RelatedIssueSerializer(
+            relates_to_issues_related, many=True
+        ).data
+
+        response_data = {
+            "blocking": blocking_issues_serialized,
+            "blocked_by": blocked_by_issues_serialized,
+            "duplicate": duplicate_issues_serialized
+            + duplicate_issues_related_serialized,
+            "relates_to": relates_to_issues_serialized
+            + relates_to_issues_related_serialized,
+        }
+
+        return Response(response_data, status=status.HTTP_200_OK)
+
+    def create(self, request, slug, project_id, issue_id):
+        relation_type = request.data.get("relation_type", None)
+        issues = request.data.get("issues", [])
+        project = Project.objects.get(pk=project_id)
+
+        issue_relation = IssueRelation.objects.bulk_create(
+            [
+                IssueRelation(
+                    issue_id=(
+                        issue if relation_type == "blocking" else issue_id
+                    ),
+                    related_issue_id=(
+                        issue_id if relation_type == "blocking" else issue
+                    ),
+                    relation_type=(
+                        "blocked_by"
+                        if relation_type == "blocking"
+                        else relation_type
+                    ),
+                    project_id=project_id,
+                    workspace_id=project.workspace_id,
+                    created_by=request.user,
+                    updated_by=request.user,
+                )
+                for issue in issues
+            ],
+            batch_size=10,
+            ignore_conflicts=True,
+        )
+
+        issue_activity.delay(
+            type="issue_relation.activity.created",
+            requested_data=json.dumps(request.data, cls=DjangoJSONEncoder),
+            actor_id=str(request.user.id),
+            issue_id=str(issue_id),
+            project_id=str(project_id),
+            current_instance=None,
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+
+        if relation_type == "blocking":
+            return Response(
+                RelatedIssueSerializer(issue_relation, many=True).data,
+                status=status.HTTP_201_CREATED,
+            )
+        else:
+            return Response(
+                IssueRelationSerializer(issue_relation, many=True).data,
+                status=status.HTTP_201_CREATED,
+            )
+
+    def remove_relation(self, request, slug, project_id, issue_id):
+        relation_type = request.data.get("relation_type", None)
+        related_issue = request.data.get("related_issue", None)
+
+        if relation_type == "blocking":
+            issue_relation = IssueRelation.objects.get(
+                workspace__slug=slug,
+                project_id=project_id,
+                issue_id=related_issue,
+                related_issue_id=issue_id,
+            )
+        else:
+            issue_relation = IssueRelation.objects.get(
+                workspace__slug=slug,
+                project_id=project_id,
+                issue_id=issue_id,
+                related_issue_id=related_issue,
+            )
+        current_instance = json.dumps(
+            IssueRelationSerializer(issue_relation).data,
+            cls=DjangoJSONEncoder,
+        )
+        issue_relation.delete()
+        issue_activity.delay(
+            type="issue_relation.activity.deleted",
+            requested_data=json.dumps(request.data, cls=DjangoJSONEncoder),
+            actor_id=str(request.user.id),
+            issue_id=str(issue_id),
+            project_id=str(project_id),
+            current_instance=current_instance,
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/issue/sub_issue.py

@@ -0,0 +1,195 @@
+# Python imports
+import json
+
+# Django imports
+from django.utils import timezone
+from django.db.models import (
+    OuterRef,
+    Func,
+    F,
+    Q,
+    Value,
+    UUIDField,
+)
+from django.utils.decorators import method_decorator
+from django.views.decorators.gzip import gzip_page
+from django.contrib.postgres.aggregates import ArrayAgg
+from django.contrib.postgres.fields import ArrayField
+from django.db.models.functions import Coalesce
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseAPIView
+from plane.app.serializers import IssueSerializer
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import (
+    Issue,
+    IssueLink,
+    IssueAttachment,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+from collections import defaultdict
+
+
+class SubIssuesEndpoint(BaseAPIView):
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    @method_decorator(gzip_page)
+    def get(self, request, slug, project_id, issue_id):
+        sub_issues = (
+            Issue.issue_objects.filter(
+                parent_id=issue_id, workspace__slug=slug
+            )
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related("assignees", "labels", "issue_module__module")
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+            .annotate(state_group=F("state__group"))
+        )
+
+        # create's a dict with state group name with their respective issue id's
+        result = defaultdict(list)
+        for sub_issue in sub_issues:
+            result[sub_issue.state_group].append(str(sub_issue.id))
+
+        sub_issues = sub_issues.values(
+            "id",
+            "name",
+            "state_id",
+            "sort_order",
+            "completed_at",
+            "estimate_point",
+            "priority",
+            "start_date",
+            "target_date",
+            "sequence_id",
+            "project_id",
+            "parent_id",
+            "cycle_id",
+            "module_ids",
+            "label_ids",
+            "assignee_ids",
+            "sub_issues_count",
+            "created_at",
+            "updated_at",
+            "created_by",
+            "updated_by",
+            "attachment_count",
+            "link_count",
+            "is_draft",
+            "archived_at",
+        )
+        return Response(
+            {
+                "sub_issues": sub_issues,
+                "state_distribution": result,
+            },
+            status=status.HTTP_200_OK,
+        )
+
+    # Assign multiple sub issues
+    def post(self, request, slug, project_id, issue_id):
+        parent_issue = Issue.issue_objects.get(pk=issue_id)
+        sub_issue_ids = request.data.get("sub_issue_ids", [])
+
+        if not len(sub_issue_ids):
+            return Response(
+                {"error": "Sub Issue IDs are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        sub_issues = Issue.issue_objects.filter(id__in=sub_issue_ids)
+
+        for sub_issue in sub_issues:
+            sub_issue.parent = parent_issue
+
+        _ = Issue.objects.bulk_update(sub_issues, ["parent"], batch_size=10)
+
+        updated_sub_issues = Issue.issue_objects.filter(
+            id__in=sub_issue_ids
+        ).annotate(state_group=F("state__group"))
+
+        # Track the issue
+        _ = [
+            issue_activity.delay(
+                type="issue.activity.updated",
+                requested_data=json.dumps({"parent": str(issue_id)}),
+                actor_id=str(request.user.id),
+                issue_id=str(sub_issue_id),
+                project_id=str(project_id),
+                current_instance=json.dumps({"parent": str(sub_issue_id)}),
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            for sub_issue_id in sub_issue_ids
+        ]
+
+        # create's a dict with state group name with their respective issue id's
+        result = defaultdict(list)
+        for sub_issue in updated_sub_issues:
+            result[sub_issue.state_group].append(str(sub_issue.id))
+
+        serializer = IssueSerializer(
+            updated_sub_issues,
+            many=True,
+        )
+        return Response(
+            {
+                "sub_issues": serializer.data,
+                "state_distribution": result,
+            },
+            status=status.HTTP_200_OK,
+        )

apiserver/plane/app/views/issue/subscriber.py

@@ -0,0 +1,124 @@
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet
+from plane.app.serializers import (
+    IssueSubscriberSerializer,
+    ProjectMemberLiteSerializer,
+)
+from plane.app.permissions import (
+    ProjectEntityPermission,
+    ProjectLitePermission,
+)
+from plane.db.models import (
+    IssueSubscriber,
+    ProjectMember,
+)
+
+
+class IssueSubscriberViewSet(BaseViewSet):
+    serializer_class = IssueSubscriberSerializer
+    model = IssueSubscriber
+
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def get_permissions(self):
+        if self.action in ["subscribe", "unsubscribe", "subscription_status"]:
+            self.permission_classes = [
+                ProjectLitePermission,
+            ]
+        else:
+            self.permission_classes = [
+                ProjectEntityPermission,
+            ]
+
+        return super(IssueSubscriberViewSet, self).get_permissions()
+
+    def perform_create(self, serializer):
+        serializer.save(
+            project_id=self.kwargs.get("project_id"),
+            issue_id=self.kwargs.get("issue_id"),
+        )
+
+    def get_queryset(self):
+        return (
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(issue_id=self.kwargs.get("issue_id"))
+            .filter(
+                project__project_projectmember__member=self.request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .order_by("-created_at")
+            .distinct()
+        )
+
+    def list(self, request, slug, project_id, issue_id):
+        members = ProjectMember.objects.filter(
+            workspace__slug=slug,
+            project_id=project_id,
+            is_active=True,
+        ).select_related("member")
+        serializer = ProjectMemberLiteSerializer(members, many=True)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def destroy(self, request, slug, project_id, issue_id, subscriber_id):
+        issue_subscriber = IssueSubscriber.objects.get(
+            project=project_id,
+            subscriber=subscriber_id,
+            workspace__slug=slug,
+            issue=issue_id,
+        )
+        issue_subscriber.delete()
+        return Response(
+            status=status.HTTP_204_NO_CONTENT,
+        )
+
+    def subscribe(self, request, slug, project_id, issue_id):
+        if IssueSubscriber.objects.filter(
+            issue_id=issue_id,
+            subscriber=request.user,
+            workspace__slug=slug,
+            project=project_id,
+        ).exists():
+            return Response(
+                {"message": "User already subscribed to the issue."},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        subscriber = IssueSubscriber.objects.create(
+            issue_id=issue_id,
+            subscriber_id=request.user.id,
+            project_id=project_id,
+        )
+        serializer = IssueSubscriberSerializer(subscriber)
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+    def unsubscribe(self, request, slug, project_id, issue_id):
+        issue_subscriber = IssueSubscriber.objects.get(
+            project=project_id,
+            subscriber=request.user,
+            workspace__slug=slug,
+            issue=issue_id,
+        )
+        issue_subscriber.delete()
+        return Response(
+            status=status.HTTP_204_NO_CONTENT,
+        )
+
+    def subscription_status(self, request, slug, project_id, issue_id):
+        issue_subscriber = IssueSubscriber.objects.filter(
+            issue=issue_id,
+            subscriber=request.user,
+            workspace__slug=slug,
+            project=project_id,
+        ).exists()
+        return Response(
+            {"subscribed": issue_subscriber}, status=status.HTTP_200_OK
+        )

apiserver/plane/app/views/module/base.py

@@ -3,9 +3,7 @@ import json
 
 # Django Imports
 from django.utils import timezone
-from django.db.models import Prefetch, F, OuterRef, Func, Exists, Count, Q
+from django.db.models import Prefetch, F, OuterRef, Exists, Count, Q
-from django.utils.decorators import method_decorator
-from django.views.decorators.gzip import gzip_page
 from django.contrib.postgres.aggregates import ArrayAgg
 from django.contrib.postgres.fields import ArrayField
 from django.db.models import Value, UUIDField
@@ -16,14 +14,12 @@ from rest_framework.response import Response
 from rest_framework import status
 
 # Module imports
-from . import BaseViewSet, BaseAPIView, WebhookMixin
+from .. import BaseViewSet, BaseAPIView, WebhookMixin
 from plane.app.serializers import (
     ModuleWriteSerializer,
     ModuleSerializer,
-    ModuleIssueSerializer,
     ModuleLinkSerializer,
     ModuleFavoriteSerializer,
-    IssueSerializer,
     ModuleUserPropertiesSerializer,
     ModuleDetailSerializer,
 )
@@ -38,12 +34,9 @@ from plane.db.models import (
     Issue,
     ModuleLink,
     ModuleFavorite,
-    IssueLink,
-    IssueAttachment,
     ModuleUserProperties,
 )
 from plane.bgtasks.issue_activites_task import issue_activity
-from plane.utils.issue_filters import issue_filters
 from plane.utils.analytics_plot import burndown_plot
 
 
@@ -426,232 +419,6 @@ class ModuleViewSet(WebhookMixin, BaseViewSet):
         return Response(status=status.HTTP_204_NO_CONTENT)
 
 
-class ModuleIssueViewSet(WebhookMixin, BaseViewSet):
-    serializer_class = ModuleIssueSerializer
-    model = ModuleIssue
-    webhook_event = "module_issue"
-    bulk = True
-
-    filterset_fields = [
-        "issue__labels__id",
-        "issue__assignees__id",
-    ]
-
-    permission_classes = [
-        ProjectEntityPermission,
-    ]
-
-    def get_queryset(self):
-        return (
-            Issue.issue_objects.filter(
-                project_id=self.kwargs.get("project_id"),
-                workspace__slug=self.kwargs.get("slug"),
-                issue_module__module_id=self.kwargs.get("module_id"),
-            )
-            .select_related("workspace", "project", "state", "parent")
-            .prefetch_related("assignees", "labels", "issue_module__module")
-            .annotate(cycle_id=F("issue_cycle__cycle_id"))
-            .annotate(
-                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
-                .order_by()
-                .annotate(count=Func(F("id"), function="Count"))
-                .values("count")
-            )
-            .annotate(
-                attachment_count=IssueAttachment.objects.filter(
-                    issue=OuterRef("id")
-                )
-                .order_by()
-                .annotate(count=Func(F("id"), function="Count"))
-                .values("count")
-            )
-            .annotate(
-                sub_issues_count=Issue.issue_objects.filter(
-                    parent=OuterRef("id")
-                )
-                .order_by()
-                .annotate(count=Func(F("id"), function="Count"))
-                .values("count")
-            )
-            .annotate(
-                label_ids=Coalesce(
-                    ArrayAgg(
-                        "labels__id",
-                        distinct=True,
-                        filter=~Q(labels__id__isnull=True),
-                    ),
-                    Value([], output_field=ArrayField(UUIDField())),
-                ),
-                assignee_ids=Coalesce(
-                    ArrayAgg(
-                        "assignees__id",
-                        distinct=True,
-                        filter=~Q(assignees__id__isnull=True),
-                    ),
-                    Value([], output_field=ArrayField(UUIDField())),
-                ),
-                module_ids=Coalesce(
-                    ArrayAgg(
-                        "issue_module__module_id",
-                        distinct=True,
-                        filter=~Q(issue_module__module_id__isnull=True),
-                    ),
-                    Value([], output_field=ArrayField(UUIDField())),
-                ),
-            )
-        ).distinct()
-
-    @method_decorator(gzip_page)
-    def list(self, request, slug, project_id, module_id):
-        fields = [
-            field
-            for field in request.GET.get("fields", "").split(",")
-            if field
-        ]
-        filters = issue_filters(request.query_params, "GET")
-        issue_queryset = self.get_queryset().filter(**filters)
-        if self.fields or self.expand:
-            issues = IssueSerializer(
-                issue_queryset, many=True, fields=fields if fields else None
-            ).data
-        else:
-            issues = issue_queryset.values(
-                "id",
-                "name",
-                "state_id",
-                "sort_order",
-                "completed_at",
-                "estimate_point",
-                "priority",
-                "start_date",
-                "target_date",
-                "sequence_id",
-                "project_id",
-                "parent_id",
-                "cycle_id",
-                "module_ids",
-                "label_ids",
-                "assignee_ids",
-                "sub_issues_count",
-                "created_at",
-                "updated_at",
-                "created_by",
-                "updated_by",
-                "attachment_count",
-                "link_count",
-                "is_draft",
-                "archived_at",
-            )
-        return Response(issues, status=status.HTTP_200_OK)
-
-    # create multiple issues inside a module
-    def create_module_issues(self, request, slug, project_id, module_id):
-        issues = request.data.get("issues", [])
-        if not issues:
-            return Response(
-                {"error": "Issues are required"},
-                status=status.HTTP_400_BAD_REQUEST,
-            )
-        project = Project.objects.get(pk=project_id)
-        _ = ModuleIssue.objects.bulk_create(
-            [
-                ModuleIssue(
-                    issue_id=str(issue),
-                    module_id=module_id,
-                    project_id=project_id,
-                    workspace_id=project.workspace_id,
-                    created_by=request.user,
-                    updated_by=request.user,
-                )
-                for issue in issues
-            ],
-            batch_size=10,
-            ignore_conflicts=True,
-        )
-        # Bulk Update the activity
-        _ = [
-            issue_activity.delay(
-                type="module.activity.created",
-                requested_data=json.dumps({"module_id": str(module_id)}),
-                actor_id=str(request.user.id),
-                issue_id=str(issue),
-                project_id=project_id,
-                current_instance=None,
-                epoch=int(timezone.now().timestamp()),
-                notification=True,
-                origin=request.META.get("HTTP_ORIGIN"),
-            )
-            for issue in issues
-        ]
-        return Response({"message": "success"}, status=status.HTTP_201_CREATED)
-
-    # create multiple module inside an issue
-    def create_issue_modules(self, request, slug, project_id, issue_id):
-        modules = request.data.get("modules", [])
-        if not modules:
-            return Response(
-                {"error": "Modules are required"},
-                status=status.HTTP_400_BAD_REQUEST,
-            )
-
-        project = Project.objects.get(pk=project_id)
-        _ = ModuleIssue.objects.bulk_create(
-            [
-                ModuleIssue(
-                    issue_id=issue_id,
-                    module_id=module,
-                    project_id=project_id,
-                    workspace_id=project.workspace_id,
-                    created_by=request.user,
-                    updated_by=request.user,
-                )
-                for module in modules
-            ],
-            batch_size=10,
-            ignore_conflicts=True,
-        )
-        # Bulk Update the activity
-        _ = [
-            issue_activity.delay(
-                type="module.activity.created",
-                requested_data=json.dumps({"module_id": module}),
-                actor_id=str(request.user.id),
-                issue_id=issue_id,
-                project_id=project_id,
-                current_instance=None,
-                epoch=int(timezone.now().timestamp()),
-                notification=True,
-                origin=request.META.get("HTTP_ORIGIN"),
-            )
-            for module in modules
-        ]
-
-        return Response({"message": "success"}, status=status.HTTP_201_CREATED)
-
-    def destroy(self, request, slug, project_id, module_id, issue_id):
-        module_issue = ModuleIssue.objects.get(
-            workspace__slug=slug,
-            project_id=project_id,
-            module_id=module_id,
-            issue_id=issue_id,
-        )
-        issue_activity.delay(
-            type="module.activity.deleted",
-            requested_data=json.dumps({"module_id": str(module_id)}),
-            actor_id=str(request.user.id),
-            issue_id=str(issue_id),
-            project_id=str(project_id),
-            current_instance=json.dumps(
-                {"module_name": module_issue.module.name}
-            ),
-            epoch=int(timezone.now().timestamp()),
-            notification=True,
-            origin=request.META.get("HTTP_ORIGIN"),
-        )
-        module_issue.delete()
-        return Response(status=status.HTTP_204_NO_CONTENT)
-
-
 class ModuleLinkViewSet(BaseViewSet):
     permission_classes = [
         ProjectEntityPermission,

apiserver/plane/app/views/module/issue.py

@@ -0,0 +1,259 @@
+# Python imports
+import json
+
+# Django Imports
+from django.utils import timezone
+from django.db.models import F, OuterRef, Func, Q
+from django.utils.decorators import method_decorator
+from django.views.decorators.gzip import gzip_page
+from django.contrib.postgres.aggregates import ArrayAgg
+from django.contrib.postgres.fields import ArrayField
+from django.db.models import Value, UUIDField
+from django.db.models.functions import Coalesce
+
+# Third party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .. import BaseViewSet, WebhookMixin
+from plane.app.serializers import (
+    ModuleIssueSerializer,
+    IssueSerializer,
+)
+from plane.app.permissions import ProjectEntityPermission
+from plane.db.models import (
+    ModuleIssue,
+    Project,
+    Issue,
+    IssueLink,
+    IssueAttachment,
+)
+from plane.bgtasks.issue_activites_task import issue_activity
+from plane.utils.issue_filters import issue_filters
+
+
+class ModuleIssueViewSet(WebhookMixin, BaseViewSet):
+    serializer_class = ModuleIssueSerializer
+    model = ModuleIssue
+    webhook_event = "module_issue"
+    bulk = True
+
+    filterset_fields = [
+        "issue__labels__id",
+        "issue__assignees__id",
+    ]
+
+    permission_classes = [
+        ProjectEntityPermission,
+    ]
+
+    def get_queryset(self):
+        return (
+            Issue.issue_objects.filter(
+                project_id=self.kwargs.get("project_id"),
+                workspace__slug=self.kwargs.get("slug"),
+                issue_module__module_id=self.kwargs.get("module_id"),
+            )
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related("assignees", "labels", "issue_module__module")
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+        ).distinct()
+
+    @method_decorator(gzip_page)
+    def list(self, request, slug, project_id, module_id):
+        fields = [
+            field
+            for field in request.GET.get("fields", "").split(",")
+            if field
+        ]
+        filters = issue_filters(request.query_params, "GET")
+        issue_queryset = self.get_queryset().filter(**filters)
+        if self.fields or self.expand:
+            issues = IssueSerializer(
+                issue_queryset, many=True, fields=fields if fields else None
+            ).data
+        else:
+            issues = issue_queryset.values(
+                "id",
+                "name",
+                "state_id",
+                "sort_order",
+                "completed_at",
+                "estimate_point",
+                "priority",
+                "start_date",
+                "target_date",
+                "sequence_id",
+                "project_id",
+                "parent_id",
+                "cycle_id",
+                "module_ids",
+                "label_ids",
+                "assignee_ids",
+                "sub_issues_count",
+                "created_at",
+                "updated_at",
+                "created_by",
+                "updated_by",
+                "attachment_count",
+                "link_count",
+                "is_draft",
+                "archived_at",
+            )
+        return Response(issues, status=status.HTTP_200_OK)
+
+    # create multiple issues inside a module
+    def create_module_issues(self, request, slug, project_id, module_id):
+        issues = request.data.get("issues", [])
+        if not issues:
+            return Response(
+                {"error": "Issues are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        project = Project.objects.get(pk=project_id)
+        _ = ModuleIssue.objects.bulk_create(
+            [
+                ModuleIssue(
+                    issue_id=str(issue),
+                    module_id=module_id,
+                    project_id=project_id,
+                    workspace_id=project.workspace_id,
+                    created_by=request.user,
+                    updated_by=request.user,
+                )
+                for issue in issues
+            ],
+            batch_size=10,
+            ignore_conflicts=True,
+        )
+        # Bulk Update the activity
+        _ = [
+            issue_activity.delay(
+                type="module.activity.created",
+                requested_data=json.dumps({"module_id": str(module_id)}),
+                actor_id=str(request.user.id),
+                issue_id=str(issue),
+                project_id=project_id,
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            for issue in issues
+        ]
+        return Response({"message": "success"}, status=status.HTTP_201_CREATED)
+
+    # create multiple module inside an issue
+    def create_issue_modules(self, request, slug, project_id, issue_id):
+        modules = request.data.get("modules", [])
+        if not modules:
+            return Response(
+                {"error": "Modules are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        project = Project.objects.get(pk=project_id)
+        _ = ModuleIssue.objects.bulk_create(
+            [
+                ModuleIssue(
+                    issue_id=issue_id,
+                    module_id=module,
+                    project_id=project_id,
+                    workspace_id=project.workspace_id,
+                    created_by=request.user,
+                    updated_by=request.user,
+                )
+                for module in modules
+            ],
+            batch_size=10,
+            ignore_conflicts=True,
+        )
+        # Bulk Update the activity
+        _ = [
+            issue_activity.delay(
+                type="module.activity.created",
+                requested_data=json.dumps({"module_id": module}),
+                actor_id=str(request.user.id),
+                issue_id=issue_id,
+                project_id=project_id,
+                current_instance=None,
+                epoch=int(timezone.now().timestamp()),
+                notification=True,
+                origin=request.META.get("HTTP_ORIGIN"),
+            )
+            for module in modules
+        ]
+
+        return Response({"message": "success"}, status=status.HTTP_201_CREATED)
+
+    def destroy(self, request, slug, project_id, module_id, issue_id):
+        module_issue = ModuleIssue.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            module_id=module_id,
+            issue_id=issue_id,
+        )
+        issue_activity.delay(
+            type="module.activity.deleted",
+            requested_data=json.dumps({"module_id": str(module_id)}),
+            actor_id=str(request.user.id),
+            issue_id=str(issue_id),
+            project_id=str(project_id),
+            current_instance=json.dumps(
+                {"module_name": module_issue.module.name}
+            ),
+            epoch=int(timezone.now().timestamp()),
+            notification=True,
+            origin=request.META.get("HTTP_ORIGIN"),
+        )
+        module_issue.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/notification/base.py

@@ -8,7 +8,7 @@ from rest_framework.response import Response
 from plane.utils.paginator import BasePaginator
 
 # Module imports
-from .base import BaseViewSet, BaseAPIView
+from ..base import BaseViewSet, BaseAPIView
 from plane.db.models import (
     Notification,
     IssueAssignee,

apiserver/plane/app/views/page/base.py

@@ -26,7 +26,7 @@ from plane.db.models import (
 )
 
 # Module imports
-from .base import BaseAPIView, BaseViewSet
+from ..base import BaseAPIView, BaseViewSet
 
 
 def unarchive_archive_page_and_descendants(page_id, archived_at):

apiserver/plane/app/views/project/base.py

@@ -0,0 +1,549 @@
+# Python imports
+import boto3
+
+# Django imports
+from django.db import IntegrityError
+from django.db.models import (
+    Prefetch,
+    Q,
+    Exists,
+    OuterRef,
+    F,
+    Func,
+    Subquery,
+)
+from django.conf import settings
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+from rest_framework import serializers
+from rest_framework.permissions import AllowAny
+
+# Module imports
+from plane.app.views.base import BaseViewSet, BaseAPIView, WebhookMixin
+from plane.app.serializers import (
+    ProjectSerializer,
+    ProjectListSerializer,
+    ProjectFavoriteSerializer,
+    ProjectDeployBoardSerializer,
+)
+
+from plane.app.permissions import (
+    ProjectBasePermission,
+    ProjectMemberPermission,
+)
+
+from plane.db.models import (
+    Project,
+    ProjectMember,
+    Workspace,
+    State,
+    ProjectFavorite,
+    ProjectIdentifier,
+    Module,
+    Cycle,
+    Inbox,
+    ProjectDeployBoard,
+    IssueProperty,
+)
+from plane.utils.cache import cache_response
+
+class ProjectViewSet(WebhookMixin, BaseViewSet):
+    serializer_class = ProjectListSerializer
+    model = Project
+    webhook_event = "project"
+
+    permission_classes = [
+        ProjectBasePermission,
+    ]
+
+    def get_queryset(self):
+        sort_order = ProjectMember.objects.filter(
+            member=self.request.user,
+            project_id=OuterRef("pk"),
+            workspace__slug=self.kwargs.get("slug"),
+            is_active=True,
+        ).values("sort_order")
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(
+                Q(project_projectmember__member=self.request.user)
+                | Q(network=2)
+            )
+            .select_related(
+                "workspace",
+                "workspace__owner",
+                "default_assignee",
+                "project_lead",
+            )
+            .annotate(
+                is_favorite=Exists(
+                    ProjectFavorite.objects.filter(
+                        user=self.request.user,
+                        project_id=OuterRef("pk"),
+                        workspace__slug=self.kwargs.get("slug"),
+                    )
+                )
+            )
+            .annotate(
+                is_member=Exists(
+                    ProjectMember.objects.filter(
+                        member=self.request.user,
+                        project_id=OuterRef("pk"),
+                        workspace__slug=self.kwargs.get("slug"),
+                        is_active=True,
+                    )
+                )
+            )
+            .annotate(
+                total_members=ProjectMember.objects.filter(
+                    project_id=OuterRef("id"),
+                    member__is_bot=False,
+                    is_active=True,
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                total_cycles=Cycle.objects.filter(project_id=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                total_modules=Module.objects.filter(project_id=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                member_role=ProjectMember.objects.filter(
+                    project_id=OuterRef("pk"),
+                    member_id=self.request.user.id,
+                    is_active=True,
+                ).values("role")
+            )
+            .annotate(
+                is_deployed=Exists(
+                    ProjectDeployBoard.objects.filter(
+                        project_id=OuterRef("pk"),
+                        workspace__slug=self.kwargs.get("slug"),
+                    )
+                )
+            )
+            .annotate(sort_order=Subquery(sort_order))
+            .prefetch_related(
+                Prefetch(
+                    "project_projectmember",
+                    queryset=ProjectMember.objects.filter(
+                        workspace__slug=self.kwargs.get("slug"),
+                        is_active=True,
+                    ).select_related("member"),
+                    to_attr="members_list",
+                )
+            )
+            .distinct()
+        )
+
+    def list(self, request, slug):
+        fields = [
+            field
+            for field in request.GET.get("fields", "").split(",")
+            if field
+        ]
+        projects = self.get_queryset().order_by("sort_order", "name")
+        if request.GET.get("per_page", False) and request.GET.get(
+            "cursor", False
+        ):
+            return self.paginate(
+                request=request,
+                queryset=(projects),
+                on_results=lambda projects: ProjectListSerializer(
+                    projects, many=True
+                ).data,
+            )
+        projects = ProjectListSerializer(
+            projects, many=True, fields=fields if fields else None
+        ).data
+        return Response(projects, status=status.HTTP_200_OK)
+
+    def create(self, request, slug):
+        try:
+            workspace = Workspace.objects.get(slug=slug)
+
+            serializer = ProjectSerializer(
+                data={**request.data}, context={"workspace_id": workspace.id}
+            )
+            if serializer.is_valid():
+                serializer.save()
+
+                # Add the user as Administrator to the project
+                _ = ProjectMember.objects.create(
+                    project_id=serializer.data["id"],
+                    member=request.user,
+                    role=20,
+                )
+                # Also create the issue property for the user
+                _ = IssueProperty.objects.create(
+                    project_id=serializer.data["id"],
+                    user=request.user,
+                )
+
+                if serializer.data["project_lead"] is not None and str(
+                    serializer.data["project_lead"]
+                ) != str(request.user.id):
+                    ProjectMember.objects.create(
+                        project_id=serializer.data["id"],
+                        member_id=serializer.data["project_lead"],
+                        role=20,
+                    )
+                    # Also create the issue property for the user
+                    IssueProperty.objects.create(
+                        project_id=serializer.data["id"],
+                        user_id=serializer.data["project_lead"],
+                    )
+
+                # Default states
+                states = [
+                    {
+                        "name": "Backlog",
+                        "color": "#A3A3A3",
+                        "sequence": 15000,
+                        "group": "backlog",
+                        "default": True,
+                    },
+                    {
+                        "name": "Todo",
+                        "color": "#3A3A3A",
+                        "sequence": 25000,
+                        "group": "unstarted",
+                    },
+                    {
+                        "name": "In Progress",
+                        "color": "#F59E0B",
+                        "sequence": 35000,
+                        "group": "started",
+                    },
+                    {
+                        "name": "Done",
+                        "color": "#16A34A",
+                        "sequence": 45000,
+                        "group": "completed",
+                    },
+                    {
+                        "name": "Cancelled",
+                        "color": "#EF4444",
+                        "sequence": 55000,
+                        "group": "cancelled",
+                    },
+                ]
+
+                State.objects.bulk_create(
+                    [
+                        State(
+                            name=state["name"],
+                            color=state["color"],
+                            project=serializer.instance,
+                            sequence=state["sequence"],
+                            workspace=serializer.instance.workspace,
+                            group=state["group"],
+                            default=state.get("default", False),
+                            created_by=request.user,
+                        )
+                        for state in states
+                    ]
+                )
+
+                project = (
+                    self.get_queryset()
+                    .filter(pk=serializer.data["id"])
+                    .first()
+                )
+                serializer = ProjectListSerializer(project)
+                return Response(
+                    serializer.data, status=status.HTTP_201_CREATED
+                )
+            return Response(
+                serializer.errors,
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        except IntegrityError as e:
+            if "already exists" in str(e):
+                return Response(
+                    {"name": "The project name is already taken"},
+                    status=status.HTTP_410_GONE,
+                )
+        except Workspace.DoesNotExist as e:
+            return Response(
+                {"error": "Workspace does not exist"},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+        except serializers.ValidationError as e:
+            return Response(
+                {"identifier": "The project identifier is already taken"},
+                status=status.HTTP_410_GONE,
+            )
+
+    def partial_update(self, request, slug, pk=None):
+        try:
+            workspace = Workspace.objects.get(slug=slug)
+
+            project = Project.objects.get(pk=pk)
+
+            serializer = ProjectSerializer(
+                project,
+                data={**request.data},
+                context={"workspace_id": workspace.id},
+                partial=True,
+            )
+
+            if serializer.is_valid():
+                serializer.save()
+                if serializer.data["inbox_view"]:
+                    Inbox.objects.get_or_create(
+                        name=f"{project.name} Inbox",
+                        project=project,
+                        is_default=True,
+                    )
+
+                    # Create the triage state in Backlog group
+                    State.objects.get_or_create(
+                        name="Triage",
+                        group="backlog",
+                        description="Default state for managing all Inbox Issues",
+                        project_id=pk,
+                        color="#ff7700",
+                    )
+
+                project = (
+                    self.get_queryset()
+                    .filter(pk=serializer.data["id"])
+                    .first()
+                )
+                serializer = ProjectListSerializer(project)
+                return Response(serializer.data, status=status.HTTP_200_OK)
+            return Response(
+                serializer.errors, status=status.HTTP_400_BAD_REQUEST
+            )
+
+        except IntegrityError as e:
+            if "already exists" in str(e):
+                return Response(
+                    {"name": "The project name is already taken"},
+                    status=status.HTTP_410_GONE,
+                )
+        except (Project.DoesNotExist, Workspace.DoesNotExist):
+            return Response(
+                {"error": "Project does not exist"},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+        except serializers.ValidationError as e:
+            return Response(
+                {"identifier": "The project identifier is already taken"},
+                status=status.HTTP_410_GONE,
+            )
+
+
+class ProjectIdentifierEndpoint(BaseAPIView):
+    permission_classes = [
+        ProjectBasePermission,
+    ]
+
+    def get(self, request, slug):
+        name = request.GET.get("name", "").strip().upper()
+
+        if name == "":
+            return Response(
+                {"error": "Name is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        exists = ProjectIdentifier.objects.filter(
+            name=name, workspace__slug=slug
+        ).values("id", "name", "project")
+
+        return Response(
+            {"exists": len(exists), "identifiers": exists},
+            status=status.HTTP_200_OK,
+        )
+
+    def delete(self, request, slug):
+        name = request.data.get("name", "").strip().upper()
+
+        if name == "":
+            return Response(
+                {"error": "Name is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        if Project.objects.filter(
+            identifier=name, workspace__slug=slug
+        ).exists():
+            return Response(
+                {
+                    "error": "Cannot delete an identifier of an existing project"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        ProjectIdentifier.objects.filter(
+            name=name, workspace__slug=slug
+        ).delete()
+
+        return Response(
+            status=status.HTTP_204_NO_CONTENT,
+        )
+
+
+class ProjectUserViewsEndpoint(BaseAPIView):
+    def post(self, request, slug, project_id):
+        project = Project.objects.get(pk=project_id, workspace__slug=slug)
+
+        project_member = ProjectMember.objects.filter(
+            member=request.user,
+            project=project,
+            is_active=True,
+        ).first()
+
+        if project_member is None:
+            return Response(
+                {"error": "Forbidden"}, status=status.HTTP_403_FORBIDDEN
+            )
+
+        view_props = project_member.view_props
+        default_props = project_member.default_props
+        preferences = project_member.preferences
+        sort_order = project_member.sort_order
+
+        project_member.view_props = request.data.get("view_props", view_props)
+        project_member.default_props = request.data.get(
+            "default_props", default_props
+        )
+        project_member.preferences = request.data.get(
+            "preferences", preferences
+        )
+        project_member.sort_order = request.data.get("sort_order", sort_order)
+
+        project_member.save()
+
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class ProjectFavoritesViewSet(BaseViewSet):
+    serializer_class = ProjectFavoriteSerializer
+    model = ProjectFavorite
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(user=self.request.user)
+            .select_related(
+                "project", "project__project_lead", "project__default_assignee"
+            )
+            .select_related("workspace", "workspace__owner")
+        )
+
+    def perform_create(self, serializer):
+        serializer.save(user=self.request.user)
+
+    def create(self, request, slug):
+        serializer = ProjectFavoriteSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save(user=request.user)
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def destroy(self, request, slug, project_id):
+        project_favorite = ProjectFavorite.objects.get(
+            project=project_id, user=request.user, workspace__slug=slug
+        )
+        project_favorite.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class ProjectPublicCoverImagesEndpoint(BaseAPIView):
+    permission_classes = [
+        AllowAny,
+    ]
+    # Cache the below api for 24 hours
+    @cache_response(60 * 60 * 24, user=False)
+    def get(self, request):
+        files = []
+        s3 = boto3.client(
+            "s3",
+            aws_access_key_id=settings.AWS_ACCESS_KEY_ID,
+            aws_secret_access_key=settings.AWS_SECRET_ACCESS_KEY,
+        )
+        params = {
+            "Bucket": settings.AWS_STORAGE_BUCKET_NAME,
+            "Prefix": "static/project-cover/",
+        }
+
+        response = s3.list_objects_v2(**params)
+        # Extracting file keys from the response
+        if "Contents" in response:
+            for content in response["Contents"]:
+                if not content["Key"].endswith(
+                    "/"
+                ):  # This line ensures we're only getting files, not "sub-folders"
+                    files.append(
+                        f"https://{settings.AWS_STORAGE_BUCKET_NAME}.s3.{settings.AWS_REGION}.amazonaws.com/{content['Key']}"
+                    )
+
+        return Response(files, status=status.HTTP_200_OK)
+
+
+class ProjectDeployBoardViewSet(BaseViewSet):
+    permission_classes = [
+        ProjectMemberPermission,
+    ]
+    serializer_class = ProjectDeployBoardSerializer
+    model = ProjectDeployBoard
+
+    def get_queryset(self):
+        return (
+            super()
+            .get_queryset()
+            .filter(
+                workspace__slug=self.kwargs.get("slug"),
+                project_id=self.kwargs.get("project_id"),
+            )
+            .select_related("project")
+        )
+
+    def create(self, request, slug, project_id):
+        comments = request.data.get("comments", False)
+        reactions = request.data.get("reactions", False)
+        inbox = request.data.get("inbox", None)
+        votes = request.data.get("votes", False)
+        views = request.data.get(
+            "views",
+            {
+                "list": True,
+                "kanban": True,
+                "calendar": True,
+                "gantt": True,
+                "spreadsheet": True,
+            },
+        )
+
+        project_deploy_board, _ = ProjectDeployBoard.objects.get_or_create(
+            anchor=f"{slug}/{project_id}",
+            project_id=project_id,
+        )
+        project_deploy_board.comments = comments
+        project_deploy_board.reactions = reactions
+        project_deploy_board.inbox = inbox
+        project_deploy_board.votes = votes
+        project_deploy_board.views = views
+
+        project_deploy_board.save()
+
+        serializer = ProjectDeployBoardSerializer(project_deploy_board)
+        return Response(serializer.data, status=status.HTTP_200_OK)

apiserver/plane/app/views/project/invite.py

@@ -0,0 +1,286 @@
+# Python imports
+import jwt
+from datetime import datetime
+
+# Django imports
+from django.core.exceptions import ValidationError
+from django.core.validators import validate_email
+from django.conf import settings
+from django.utils import timezone
+
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+from rest_framework.permissions import AllowAny
+
+# Module imports
+from .base import BaseViewSet, BaseAPIView
+from plane.app.serializers import ProjectMemberInviteSerializer
+
+from plane.app.permissions import ProjectBasePermission
+
+from plane.db.models import (
+    ProjectMember,
+    Workspace,
+    ProjectMemberInvite,
+    User,
+    WorkspaceMember,
+    IssueProperty,
+)
+
+
+class ProjectInvitationsViewset(BaseViewSet):
+    serializer_class = ProjectMemberInviteSerializer
+    model = ProjectMemberInvite
+
+    search_fields = []
+
+    permission_classes = [
+        ProjectBasePermission,
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .select_related("project")
+            .select_related("workspace", "workspace__owner")
+        )
+
+    def create(self, request, slug, project_id):
+        emails = request.data.get("emails", [])
+
+        # Check if email is provided
+        if not emails:
+            return Response(
+                {"error": "Emails are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        requesting_user = ProjectMember.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            member_id=request.user.id,
+        )
+
+        # Check if any invited user has an higher role
+        if len(
+            [
+                email
+                for email in emails
+                if int(email.get("role", 10)) > requesting_user.role
+            ]
+        ):
+            return Response(
+                {"error": "You cannot invite a user with higher role"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        workspace = Workspace.objects.get(slug=slug)
+
+        project_invitations = []
+        for email in emails:
+            try:
+                validate_email(email.get("email"))
+                project_invitations.append(
+                    ProjectMemberInvite(
+                        email=email.get("email").strip().lower(),
+                        project_id=project_id,
+                        workspace_id=workspace.id,
+                        token=jwt.encode(
+                            {
+                                "email": email,
+                                "timestamp": datetime.now().timestamp(),
+                            },
+                            settings.SECRET_KEY,
+                            algorithm="HS256",
+                        ),
+                        role=email.get("role", 10),
+                        created_by=request.user,
+                    )
+                )
+            except ValidationError:
+                return Response(
+                    {
+                        "error": f"Invalid email - {email} provided a valid email address is required to send the invite"
+                    },
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+
+        # Create workspace member invite
+        project_invitations = ProjectMemberInvite.objects.bulk_create(
+            project_invitations, batch_size=10, ignore_conflicts=True
+        )
+        current_site = request.META.get("HTTP_ORIGIN")
+
+        # Send invitations
+        for invitation in project_invitations:
+            project_invitations.delay(
+                invitation.email,
+                project_id,
+                invitation.token,
+                current_site,
+                request.user.email,
+            )
+
+        return Response(
+            {
+                "message": "Email sent successfully",
+            },
+            status=status.HTTP_200_OK,
+        )
+
+
+class UserProjectInvitationsViewset(BaseViewSet):
+    serializer_class = ProjectMemberInviteSerializer
+    model = ProjectMemberInvite
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(email=self.request.user.email)
+            .select_related("workspace", "workspace__owner", "project")
+        )
+
+    def create(self, request, slug):
+        project_ids = request.data.get("project_ids", [])
+
+        # Get the workspace user role
+        workspace_member = WorkspaceMember.objects.get(
+            member=request.user,
+            workspace__slug=slug,
+            is_active=True,
+        )
+
+        workspace_role = workspace_member.role
+        workspace = workspace_member.workspace
+
+        # If the user was already part of workspace
+        _ = ProjectMember.objects.filter(
+            workspace__slug=slug,
+            project_id__in=project_ids,
+            member=request.user,
+        ).update(is_active=True)
+
+        ProjectMember.objects.bulk_create(
+            [
+                ProjectMember(
+                    project_id=project_id,
+                    member=request.user,
+                    role=15 if workspace_role >= 15 else 10,
+                    workspace=workspace,
+                    created_by=request.user,
+                )
+                for project_id in project_ids
+            ],
+            ignore_conflicts=True,
+        )
+
+        IssueProperty.objects.bulk_create(
+            [
+                IssueProperty(
+                    project_id=project_id,
+                    user=request.user,
+                    workspace=workspace,
+                    created_by=request.user,
+                )
+                for project_id in project_ids
+            ],
+            ignore_conflicts=True,
+        )
+
+        return Response(
+            {"message": "Projects joined successfully"},
+            status=status.HTTP_201_CREATED,
+        )
+
+
+class ProjectJoinEndpoint(BaseAPIView):
+    permission_classes = [
+        AllowAny,
+    ]
+
+    def post(self, request, slug, project_id, pk):
+        project_invite = ProjectMemberInvite.objects.get(
+            pk=pk,
+            project_id=project_id,
+            workspace__slug=slug,
+        )
+
+        email = request.data.get("email", "")
+
+        if email == "" or project_invite.email != email:
+            return Response(
+                {"error": "You do not have permission to join the project"},
+                status=status.HTTP_403_FORBIDDEN,
+            )
+
+        if project_invite.responded_at is None:
+            project_invite.accepted = request.data.get("accepted", False)
+            project_invite.responded_at = timezone.now()
+            project_invite.save()
+
+            if project_invite.accepted:
+                # Check if the user account exists
+                user = User.objects.filter(email=email).first()
+
+                # Check if user is a part of workspace
+                workspace_member = WorkspaceMember.objects.filter(
+                    workspace__slug=slug, member=user
+                ).first()
+                # Add him to workspace
+                if workspace_member is None:
+                    _ = WorkspaceMember.objects.create(
+                        workspace_id=project_invite.workspace_id,
+                        member=user,
+                        role=(
+                            15
+                            if project_invite.role >= 15
+                            else project_invite.role
+                        ),
+                    )
+                else:
+                    # Else make him active
+                    workspace_member.is_active = True
+                    workspace_member.save()
+
+                # Check if the user was already a member of project then activate the user
+                project_member = ProjectMember.objects.filter(
+                    workspace_id=project_invite.workspace_id, member=user
+                ).first()
+                if project_member is None:
+                    # Create a Project Member
+                    _ = ProjectMember.objects.create(
+                        workspace_id=project_invite.workspace_id,
+                        member=user,
+                        role=project_invite.role,
+                    )
+                else:
+                    project_member.is_active = True
+                    project_member.role = project_member.role
+                    project_member.save()
+
+                return Response(
+                    {"message": "Project Invitation Accepted"},
+                    status=status.HTTP_200_OK,
+                )
+
+            return Response(
+                {"message": "Project Invitation was not accepted"},
+                status=status.HTTP_200_OK,
+            )
+
+        return Response(
+            {"error": "You have already responded to the invitation request"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    def get(self, request, slug, project_id, pk):
+        project_invitation = ProjectMemberInvite.objects.get(
+            workspace__slug=slug, project_id=project_id, pk=pk
+        )
+        serializer = ProjectMemberInviteSerializer(project_invitation)
+        return Response(serializer.data, status=status.HTTP_200_OK)

apiserver/plane/app/views/project/member.py

@@ -0,0 +1,349 @@
+# Third Party imports
+from rest_framework.response import Response
+from rest_framework import status
+
+# Module imports
+from .base import BaseViewSet, BaseAPIView
+from plane.app.serializers import (
+    ProjectMemberSerializer,
+    ProjectMemberAdminSerializer,
+    ProjectMemberRoleSerializer,
+)
+
+from plane.app.permissions import (
+    ProjectBasePermission,
+    ProjectMemberPermission,
+    ProjectLitePermission,
+    WorkspaceUserPermission,
+)
+
+from plane.db.models import (
+    Project,
+    ProjectMember,
+    Workspace,
+    TeamMember,
+    IssueProperty,
+)
+
+
+class ProjectMemberViewSet(BaseViewSet):
+    serializer_class = ProjectMemberAdminSerializer
+    model = ProjectMember
+    permission_classes = [
+        ProjectMemberPermission,
+    ]
+
+    def get_permissions(self):
+        if self.action == "leave":
+            self.permission_classes = [
+                ProjectLitePermission,
+            ]
+        else:
+            self.permission_classes = [
+                ProjectMemberPermission,
+            ]
+
+        return super(ProjectMemberViewSet, self).get_permissions()
+
+    search_fields = [
+        "member__display_name",
+        "member__first_name",
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .filter(project_id=self.kwargs.get("project_id"))
+            .filter(member__is_bot=False)
+            .filter()
+            .select_related("project")
+            .select_related("member")
+            .select_related("workspace", "workspace__owner")
+        )
+
+    def create(self, request, slug, project_id):
+        members = request.data.get("members", [])
+
+        # get the project
+        project = Project.objects.get(pk=project_id, workspace__slug=slug)
+
+        if not len(members):
+            return Response(
+                {"error": "Atleast one member is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        bulk_project_members = []
+        bulk_issue_props = []
+
+        project_members = (
+            ProjectMember.objects.filter(
+                workspace__slug=slug,
+                member_id__in=[member.get("member_id") for member in members],
+            )
+            .values("member_id", "sort_order")
+            .order_by("sort_order")
+        )
+
+        bulk_project_members = []
+        member_roles = {
+            member.get("member_id"): member.get("role") for member in members
+        }
+        # Update roles in the members array based on the member_roles dictionary
+        for project_member in ProjectMember.objects.filter(
+            project_id=project_id,
+            member_id__in=[member.get("member_id") for member in members],
+        ):
+            project_member.role = member_roles[str(project_member.member_id)]
+            project_member.is_active = True
+            bulk_project_members.append(project_member)
+
+        # Update the roles of the existing members
+        ProjectMember.objects.bulk_update(
+            bulk_project_members, ["is_active", "role"], batch_size=100
+        )
+
+        for member in members:
+            sort_order = [
+                project_member.get("sort_order")
+                for project_member in project_members
+                if str(project_member.get("member_id"))
+                == str(member.get("member_id"))
+            ]
+            bulk_project_members.append(
+                ProjectMember(
+                    member_id=member.get("member_id"),
+                    role=member.get("role", 10),
+                    project_id=project_id,
+                    workspace_id=project.workspace_id,
+                    sort_order=(
+                        sort_order[0] - 10000 if len(sort_order) else 65535
+                    ),
+                )
+            )
+            bulk_issue_props.append(
+                IssueProperty(
+                    user_id=member.get("member_id"),
+                    project_id=project_id,
+                    workspace_id=project.workspace_id,
+                )
+            )
+
+        project_members = ProjectMember.objects.bulk_create(
+            bulk_project_members,
+            batch_size=10,
+            ignore_conflicts=True,
+        )
+
+        _ = IssueProperty.objects.bulk_create(
+            bulk_issue_props, batch_size=10, ignore_conflicts=True
+        )
+
+        project_members = ProjectMember.objects.filter(
+            project_id=project_id,
+            member_id__in=[member.get("member_id") for member in members],
+        )
+        serializer = ProjectMemberRoleSerializer(project_members, many=True)
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+    def list(self, request, slug, project_id):
+        # Get the list of project members for the project
+        project_members = ProjectMember.objects.filter(
+            project_id=project_id,
+            workspace__slug=slug,
+            member__is_bot=False,
+            is_active=True,
+        ).select_related("project", "member", "workspace")
+
+        serializer = ProjectMemberRoleSerializer(
+            project_members, fields=("id", "member", "role"), many=True
+        )
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    def partial_update(self, request, slug, project_id, pk):
+        project_member = ProjectMember.objects.get(
+            pk=pk,
+            workspace__slug=slug,
+            project_id=project_id,
+            is_active=True,
+        )
+        if request.user.id == project_member.member_id:
+            return Response(
+                {"error": "You cannot update your own role"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        # Check while updating user roles
+        requested_project_member = ProjectMember.objects.get(
+            project_id=project_id,
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+        if (
+            "role" in request.data
+            and int(request.data.get("role", project_member.role))
+            > requested_project_member.role
+        ):
+            return Response(
+                {
+                    "error": "You cannot update a role that is higher than your own role"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        serializer = ProjectMemberSerializer(
+            project_member, data=request.data, partial=True
+        )
+
+        if serializer.is_valid():
+            serializer.save()
+            return Response(serializer.data, status=status.HTTP_200_OK)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    def destroy(self, request, slug, project_id, pk):
+        project_member = ProjectMember.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            pk=pk,
+            member__is_bot=False,
+            is_active=True,
+        )
+        # check requesting user role
+        requesting_project_member = ProjectMember.objects.get(
+            workspace__slug=slug,
+            member=request.user,
+            project_id=project_id,
+            is_active=True,
+        )
+        # User cannot remove himself
+        if str(project_member.id) == str(requesting_project_member.id):
+            return Response(
+                {
+                    "error": "You cannot remove yourself from the workspace. Please use leave workspace"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        # User cannot deactivate higher role
+        if requesting_project_member.role < project_member.role:
+            return Response(
+                {
+                    "error": "You cannot remove a user having role higher than you"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        project_member.is_active = False
+        project_member.save()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+    def leave(self, request, slug, project_id):
+        project_member = ProjectMember.objects.get(
+            workspace__slug=slug,
+            project_id=project_id,
+            member=request.user,
+            is_active=True,
+        )
+
+        # Check if the leaving user is the only admin of the project
+        if (
+            project_member.role == 20
+            and not ProjectMember.objects.filter(
+                workspace__slug=slug,
+                project_id=project_id,
+                role=20,
+                is_active=True,
+            ).count()
+            > 1
+        ):
+            return Response(
+                {
+                    "error": "You cannot leave the project as your the only admin of the project you will have to either delete the project or create an another admin",
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        # Deactivate the user
+        project_member.is_active = False
+        project_member.save()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class AddTeamToProjectEndpoint(BaseAPIView):
+    permission_classes = [
+        ProjectBasePermission,
+    ]
+
+    def post(self, request, slug, project_id):
+        team_members = TeamMember.objects.filter(
+            workspace__slug=slug, team__in=request.data.get("teams", [])
+        ).values_list("member", flat=True)
+
+        if len(team_members) == 0:
+            return Response(
+                {"error": "No such team exists"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        workspace = Workspace.objects.get(slug=slug)
+
+        project_members = []
+        issue_props = []
+        for member in team_members:
+            project_members.append(
+                ProjectMember(
+                    project_id=project_id,
+                    member_id=member,
+                    workspace=workspace,
+                    created_by=request.user,
+                )
+            )
+            issue_props.append(
+                IssueProperty(
+                    project_id=project_id,
+                    user_id=member,
+                    workspace=workspace,
+                    created_by=request.user,
+                )
+            )
+
+        ProjectMember.objects.bulk_create(
+            project_members, batch_size=10, ignore_conflicts=True
+        )
+
+        _ = IssueProperty.objects.bulk_create(
+            issue_props, batch_size=10, ignore_conflicts=True
+        )
+
+        serializer = ProjectMemberSerializer(project_members, many=True)
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+
+class ProjectMemberUserEndpoint(BaseAPIView):
+    def get(self, request, slug, project_id):
+        project_member = ProjectMember.objects.get(
+            project_id=project_id,
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+        serializer = ProjectMemberSerializer(project_member)
+
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+
+class UserProjectRolesEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceUserPermission,
+    ]
+
+    def get(self, request, slug):
+        project_members = ProjectMember.objects.filter(
+            workspace__slug=slug,
+            member_id=request.user.id,
+        ).values("project_id", "role")
+
+        project_members = {
+            str(member["project_id"]): member["role"]
+            for member in project_members
+        }
+        return Response(project_members, status=status.HTTP_200_OK)

apiserver/plane/app/views/state/base.py

@@ -9,7 +9,7 @@ from rest_framework.response import Response
 from rest_framework import status
 
 # Module imports
-from . import BaseViewSet
+from .. import BaseViewSet
 from plane.app.serializers import StateSerializer
 from plane.app.permissions import (
     ProjectEntityPermission,

apiserver/plane/app/views/view/base.py

@@ -23,7 +23,7 @@ from rest_framework.response import Response
 from rest_framework import status
 
 # Module imports
-from . import BaseViewSet
+from .. import BaseViewSet
 from plane.app.serializers import (
     IssueViewSerializer,
     IssueSerializer,

apiserver/plane/app/views/webhook/base.py

@@ -8,7 +8,7 @@ from rest_framework.response import Response
 # Module imports
 from plane.db.models import Webhook, WebhookLog, Workspace
 from plane.db.models.webhook import generate_token
-from .base import BaseAPIView
+from ..base import BaseAPIView
 from plane.app.permissions import WorkspaceOwnerPermission
 from plane.app.serializers import WebhookSerializer, WebhookLogSerializer
 

apiserver/plane/app/views/workspace/base.py

@@ -0,0 +1,414 @@
+# Python imports
+from datetime import date
+from dateutil.relativedelta import relativedelta
+import csv
+import io
+
+
+# Django imports
+from django.http import HttpResponse
+from django.db import IntegrityError
+from django.utils import timezone
+from django.db.models import (
+    Prefetch,
+    OuterRef,
+    Func,
+    F,
+    Q,
+    Count,
+)
+from django.db.models.functions import ExtractWeek, Cast, ExtractDay
+from django.db.models.fields import DateField
+
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.serializers import (
+    WorkSpaceSerializer,
+    WorkspaceThemeSerializer,
+)
+from plane.app.views.base import BaseViewSet, BaseAPIView
+from plane.db.models import (
+    Workspace,
+    IssueActivity,
+    Issue,
+    WorkspaceTheme,
+    WorkspaceMember,
+)
+from plane.app.permissions import (
+    WorkSpaceBasePermission,
+    WorkSpaceAdminPermission,
+    WorkspaceEntityPermission,
+)
+from plane.utils.cache import cache_response, invalidate_cache
+
+class WorkSpaceViewSet(BaseViewSet):
+    model = Workspace
+    serializer_class = WorkSpaceSerializer
+    permission_classes = [
+        WorkSpaceBasePermission,
+    ]
+
+    search_fields = [
+        "name",
+    ]
+    filterset_fields = [
+        "owner",
+    ]
+
+    lookup_field = "slug"
+
+    def get_queryset(self):
+        member_count = (
+            WorkspaceMember.objects.filter(
+                workspace=OuterRef("id"),
+                member__is_bot=False,
+                is_active=True,
+            )
+            .order_by()
+            .annotate(count=Func(F("id"), function="Count"))
+            .values("count")
+        )
+
+        issue_count = (
+            Issue.issue_objects.filter(workspace=OuterRef("id"))
+            .order_by()
+            .annotate(count=Func(F("id"), function="Count"))
+            .values("count")
+        )
+        return (
+            self.filter_queryset(
+                super().get_queryset().select_related("owner")
+            )
+            .order_by("name")
+            .filter(
+                workspace_member__member=self.request.user,
+                workspace_member__is_active=True,
+            )
+            .annotate(total_members=member_count)
+            .annotate(total_issues=issue_count)
+            .select_related("owner")
+        )
+
+    @invalidate_cache(path="/api/workspaces/", user=False)
+    @invalidate_cache(path="/api/users/me/workspaces/")
+    def create(self, request):
+        try:
+            serializer = WorkSpaceSerializer(data=request.data)
+
+            slug = request.data.get("slug", False)
+            name = request.data.get("name", False)
+
+            if not name or not slug:
+                return Response(
+                    {"error": "Both name and slug are required"},
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+
+            if len(name) > 80 or len(slug) > 48:
+                return Response(
+                    {
+                        "error": "The maximum length for name is 80 and for slug is 48"
+                    },
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+
+            if serializer.is_valid():
+                serializer.save(owner=request.user)
+                # Create Workspace member
+                _ = WorkspaceMember.objects.create(
+                    workspace_id=serializer.data["id"],
+                    member=request.user,
+                    role=20,
+                    company_role=request.data.get("company_role", ""),
+                )
+                return Response(
+                    serializer.data, status=status.HTTP_201_CREATED
+                )
+            return Response(
+                [serializer.errors[error][0] for error in serializer.errors],
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        except IntegrityError as e:
+            if "already exists" in str(e):
+                return Response(
+                    {"slug": "The workspace with the slug already exists"},
+                    status=status.HTTP_410_GONE,
+                )
+    @cache_response(60 * 60 * 2)
+    def list(self, request, *args, **kwargs):
+        return super().list(request, *args, **kwargs)
+
+    @invalidate_cache(path="/api/workspaces/", user=False)
+    @invalidate_cache(path="/api/users/me/workspaces/")
+    def partial_update(self, request, *args, **kwargs):
+        return super().partial_update(request, *args, **kwargs)
+
+    @invalidate_cache(path="/api/workspaces/", user=False)
+    @invalidate_cache(path="/api/users/me/workspaces/")
+    def destroy(self, request, *args, **kwargs):
+        return super().destroy(request, *args, **kwargs)
+
+
+class UserWorkSpacesEndpoint(BaseAPIView):
+    search_fields = [
+        "name",
+    ]
+    filterset_fields = [
+        "owner",
+    ]
+
+    @cache_response(60 * 60 * 2)
+    def get(self, request):
+        fields = [
+            field
+            for field in request.GET.get("fields", "").split(",")
+            if field
+        ]
+        member_count = (
+            WorkspaceMember.objects.filter(
+                workspace=OuterRef("id"),
+                member__is_bot=False,
+                is_active=True,
+            )
+            .order_by()
+            .annotate(count=Func(F("id"), function="Count"))
+            .values("count")
+        )
+
+        issue_count = (
+            Issue.issue_objects.filter(workspace=OuterRef("id"))
+            .order_by()
+            .annotate(count=Func(F("id"), function="Count"))
+            .values("count")
+        )
+
+        workspace = (
+            Workspace.objects.prefetch_related(
+                Prefetch(
+                    "workspace_member",
+                    queryset=WorkspaceMember.objects.filter(
+                        member=request.user, is_active=True
+                    ),
+                )
+            )
+            .select_related("owner")
+            .annotate(total_members=member_count)
+            .annotate(total_issues=issue_count)
+            .filter(
+                workspace_member__member=request.user,
+                workspace_member__is_active=True,
+            )
+            .distinct()
+        )
+        workspaces = WorkSpaceSerializer(
+            self.filter_queryset(workspace),
+            fields=fields if fields else None,
+            many=True,
+        ).data
+        return Response(workspaces, status=status.HTTP_200_OK)
+
+
+class WorkSpaceAvailabilityCheckEndpoint(BaseAPIView):
+    def get(self, request):
+        slug = request.GET.get("slug", False)
+
+        if not slug or slug == "":
+            return Response(
+                {"error": "Workspace Slug is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        workspace = Workspace.objects.filter(slug=slug).exists()
+        return Response({"status": not workspace}, status=status.HTTP_200_OK)
+
+
+class WeekInMonth(Func):
+    function = "FLOOR"
+    template = "(((%(expressions)s - 1) / 7) + 1)::INTEGER"
+
+
+class UserWorkspaceDashboardEndpoint(BaseAPIView):
+    def get(self, request, slug):
+        issue_activities = (
+            IssueActivity.objects.filter(
+                actor=request.user,
+                workspace__slug=slug,
+                created_at__date__gte=date.today() + relativedelta(months=-3),
+            )
+            .annotate(created_date=Cast("created_at", DateField()))
+            .values("created_date")
+            .annotate(activity_count=Count("created_date"))
+            .order_by("created_date")
+        )
+
+        month = request.GET.get("month", 1)
+
+        completed_issues = (
+            Issue.issue_objects.filter(
+                assignees__in=[request.user],
+                workspace__slug=slug,
+                completed_at__month=month,
+                completed_at__isnull=False,
+            )
+            .annotate(day_of_month=ExtractDay("completed_at"))
+            .annotate(week_in_month=WeekInMonth(F("day_of_month")))
+            .values("week_in_month")
+            .annotate(completed_count=Count("id"))
+            .order_by("week_in_month")
+        )
+
+        assigned_issues = Issue.issue_objects.filter(
+            workspace__slug=slug, assignees__in=[request.user]
+        ).count()
+
+        pending_issues_count = Issue.issue_objects.filter(
+            ~Q(state__group__in=["completed", "cancelled"]),
+            workspace__slug=slug,
+            assignees__in=[request.user],
+        ).count()
+
+        completed_issues_count = Issue.issue_objects.filter(
+            workspace__slug=slug,
+            assignees__in=[request.user],
+            state__group="completed",
+        ).count()
+
+        issues_due_week = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug,
+                assignees__in=[request.user],
+            )
+            .annotate(target_week=ExtractWeek("target_date"))
+            .filter(target_week=timezone.now().date().isocalendar()[1])
+            .count()
+        )
+
+        state_distribution = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug, assignees__in=[request.user]
+            )
+            .annotate(state_group=F("state__group"))
+            .values("state_group")
+            .annotate(state_count=Count("state_group"))
+            .order_by("state_group")
+        )
+
+        overdue_issues = Issue.issue_objects.filter(
+            ~Q(state__group__in=["completed", "cancelled"]),
+            workspace__slug=slug,
+            assignees__in=[request.user],
+            target_date__lt=timezone.now(),
+            completed_at__isnull=True,
+        ).values("id", "name", "workspace__slug", "project_id", "target_date")
+
+        upcoming_issues = Issue.issue_objects.filter(
+            ~Q(state__group__in=["completed", "cancelled"]),
+            start_date__gte=timezone.now(),
+            workspace__slug=slug,
+            assignees__in=[request.user],
+            completed_at__isnull=True,
+        ).values("id", "name", "workspace__slug", "project_id", "start_date")
+
+        return Response(
+            {
+                "issue_activities": issue_activities,
+                "completed_issues": completed_issues,
+                "assigned_issues_count": assigned_issues,
+                "pending_issues_count": pending_issues_count,
+                "completed_issues_count": completed_issues_count,
+                "issues_due_week_count": issues_due_week,
+                "state_distribution": state_distribution,
+                "overdue_issues": overdue_issues,
+                "upcoming_issues": upcoming_issues,
+            },
+            status=status.HTTP_200_OK,
+        )
+
+
+class WorkspaceThemeViewSet(BaseViewSet):
+    permission_classes = [
+        WorkSpaceAdminPermission,
+    ]
+    model = WorkspaceTheme
+    serializer_class = WorkspaceThemeSerializer
+
+    def get_queryset(self):
+        return (
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+        )
+
+    def create(self, request, slug):
+        workspace = Workspace.objects.get(slug=slug)
+        serializer = WorkspaceThemeSerializer(data=request.data)
+        if serializer.is_valid():
+            serializer.save(workspace=workspace, actor=request.user)
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+
+class ExportWorkspaceUserActivityEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceEntityPermission,
+    ]
+
+    def generate_csv_from_rows(self, rows):
+        """Generate CSV buffer from rows."""
+        csv_buffer = io.StringIO()
+        writer = csv.writer(csv_buffer, delimiter=",", quoting=csv.QUOTE_ALL)
+        [writer.writerow(row) for row in rows]
+        csv_buffer.seek(0)
+        return csv_buffer
+
+    def post(self, request, slug, user_id):
+
+        if not request.data.get("date"):
+            return Response(
+                {"error": "Date is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        user_activities = IssueActivity.objects.filter(
+            ~Q(field__in=["comment", "vote", "reaction", "draft"]),
+            workspace__slug=slug,
+            created_at__date=request.data.get("date"),
+            project__project_projectmember__member=request.user,
+            actor_id=user_id,
+        ).select_related("actor", "workspace", "issue", "project")[:10000]
+
+        header = [
+            "Actor name",
+            "Issue ID",
+            "Project",
+            "Created at",
+            "Updated at",
+            "Action",
+            "Field",
+            "Old value",
+            "New value",
+        ]
+        rows = [
+            (
+                activity.actor.display_name,
+                f"{activity.project.identifier} - {activity.issue.sequence_id if activity.issue else ''}",
+                activity.project.name,
+                activity.created_at,
+                activity.updated_at,
+                activity.verb,
+                activity.field,
+                activity.old_value,
+                activity.new_value,
+            )
+            for activity in user_activities
+        ]
+        csv_buffer = self.generate_csv_from_rows([header] + rows)
+        response = HttpResponse(csv_buffer.getvalue(), content_type="text/csv")
+        response["Content-Disposition"] = (
+            'attachment; filename="workspace-user-activity.csv"'
+        )
+        return response

apiserver/plane/app/views/workspace/cycle.py

@@ -0,0 +1,116 @@
+# Django imports
+from django.db.models import (
+    Q,
+    Count,
+    Sum,
+)
+
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.views.base import BaseAPIView
+from plane.db.models import Cycle
+from plane.app.permissions import WorkspaceViewerPermission
+from plane.app.serializers.cycle import CycleSerializer
+
+
+class WorkspaceCyclesEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceViewerPermission,
+    ]
+
+    def get(self, request, slug):
+        cycles = (
+            Cycle.objects.filter(workspace__slug=slug)
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("owned_by")
+            .annotate(
+                total_issues=Count(
+                    "issue_cycle",
+                    filter=Q(
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                completed_issues=Count(
+                    "issue_cycle__issue__state__group",
+                    filter=Q(
+                        issue_cycle__issue__state__group="completed",
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                cancelled_issues=Count(
+                    "issue_cycle__issue__state__group",
+                    filter=Q(
+                        issue_cycle__issue__state__group="cancelled",
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                started_issues=Count(
+                    "issue_cycle__issue__state__group",
+                    filter=Q(
+                        issue_cycle__issue__state__group="started",
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                unstarted_issues=Count(
+                    "issue_cycle__issue__state__group",
+                    filter=Q(
+                        issue_cycle__issue__state__group="unstarted",
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                backlog_issues=Count(
+                    "issue_cycle__issue__state__group",
+                    filter=Q(
+                        issue_cycle__issue__state__group="backlog",
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                total_estimates=Sum("issue_cycle__issue__estimate_point")
+            )
+            .annotate(
+                completed_estimates=Sum(
+                    "issue_cycle__issue__estimate_point",
+                    filter=Q(
+                        issue_cycle__issue__state__group="completed",
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                started_estimates=Sum(
+                    "issue_cycle__issue__estimate_point",
+                    filter=Q(
+                        issue_cycle__issue__state__group="started",
+                        issue_cycle__issue__archived_at__isnull=True,
+                        issue_cycle__issue__is_draft=False,
+                    ),
+                )
+            )
+            .order_by(self.kwargs.get("order_by", "-created_at"))
+            .distinct()
+        )
+        serializer = CycleSerializer(cycles, many=True).data
+        return Response(serializer, status=status.HTTP_200_OK)

apiserver/plane/app/views/workspace/estimate.py

@@ -0,0 +1,39 @@
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.serializers import WorkspaceEstimateSerializer
+from plane.app.views.base import BaseAPIView
+from plane.db.models import Project, Estimate
+from plane.app.permissions import WorkspaceEntityPermission
+
+# Django imports
+from django.db.models import (
+    Prefetch,
+)
+from plane.utils.cache import cache_response
+
+
+class WorkspaceEstimatesEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceEntityPermission,
+    ]
+
+    @cache_response(60 * 60 * 2)
+    def get(self, request, slug):
+        estimate_ids = Project.objects.filter(
+            workspace__slug=slug, estimate__isnull=False
+        ).values_list("estimate_id", flat=True)
+        estimates = Estimate.objects.filter(
+            pk__in=estimate_ids
+        ).prefetch_related(
+            Prefetch(
+                "points",
+                queryset=Project.objects.select_related(
+                    "estimate", "workspace", "project"
+                ),
+            )
+        )
+        serializer = WorkspaceEstimateSerializer(estimates, many=True)
+        return Response(serializer.data, status=status.HTTP_200_OK)

apiserver/plane/app/views/workspace/invite.py

@@ -0,0 +1,301 @@
+# Python imports
+import jwt
+from datetime import datetime
+
+# Django imports
+from django.conf import settings
+from django.utils import timezone
+from django.db.models import Count
+from django.core.exceptions import ValidationError
+from django.core.validators import validate_email
+
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.permissions import AllowAny
+
+# Module imports
+from plane.app.serializers import (
+    WorkSpaceMemberSerializer,
+    WorkSpaceMemberInviteSerializer,
+)
+from plane.app.views.base import BaseAPIView
+from .. import BaseViewSet
+from plane.db.models import (
+    User,
+    Workspace,
+    WorkspaceMemberInvite,
+    WorkspaceMember,
+)
+from plane.app.permissions import WorkSpaceAdminPermission
+from plane.bgtasks.workspace_invitation_task import workspace_invitation
+from plane.bgtasks.event_tracking_task import workspace_invite_event
+from plane.utils.cache import invalidate_cache
+
+class WorkspaceInvitationsViewset(BaseViewSet):
+    """Endpoint for creating, listing and  deleting workspaces"""
+
+    serializer_class = WorkSpaceMemberInviteSerializer
+    model = WorkspaceMemberInvite
+
+    permission_classes = [
+        WorkSpaceAdminPermission,
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .select_related("workspace", "workspace__owner", "created_by")
+        )
+
+    def create(self, request, slug):
+        emails = request.data.get("emails", [])
+        # Check if email is provided
+        if not emails:
+            return Response(
+                {"error": "Emails are required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # check for role level of the requesting user
+        requesting_user = WorkspaceMember.objects.get(
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+
+        # Check if any invited user has an higher role
+        if len(
+            [
+                email
+                for email in emails
+                if int(email.get("role", 10)) > requesting_user.role
+            ]
+        ):
+            return Response(
+                {"error": "You cannot invite a user with higher role"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Get the workspace object
+        workspace = Workspace.objects.get(slug=slug)
+
+        # Check if user is already a member of workspace
+        workspace_members = WorkspaceMember.objects.filter(
+            workspace_id=workspace.id,
+            member__email__in=[email.get("email") for email in emails],
+            is_active=True,
+        ).select_related("member", "workspace", "workspace__owner")
+
+        if workspace_members:
+            return Response(
+                {
+                    "error": "Some users are already member of workspace",
+                    "workspace_users": WorkSpaceMemberSerializer(
+                        workspace_members, many=True
+                    ).data,
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        workspace_invitations = []
+        for email in emails:
+            try:
+                validate_email(email.get("email"))
+                workspace_invitations.append(
+                    WorkspaceMemberInvite(
+                        email=email.get("email").strip().lower(),
+                        workspace_id=workspace.id,
+                        token=jwt.encode(
+                            {
+                                "email": email,
+                                "timestamp": datetime.now().timestamp(),
+                            },
+                            settings.SECRET_KEY,
+                            algorithm="HS256",
+                        ),
+                        role=email.get("role", 10),
+                        created_by=request.user,
+                    )
+                )
+            except ValidationError:
+                return Response(
+                    {
+                        "error": f"Invalid email - {email} provided a valid email address is required to send the invite"
+                    },
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+        # Create workspace member invite
+        workspace_invitations = WorkspaceMemberInvite.objects.bulk_create(
+            workspace_invitations, batch_size=10, ignore_conflicts=True
+        )
+
+        current_site = request.META.get("HTTP_ORIGIN")
+
+        # Send invitations
+        for invitation in workspace_invitations:
+            workspace_invitation.delay(
+                invitation.email,
+                workspace.id,
+                invitation.token,
+                current_site,
+                request.user.email,
+            )
+
+        return Response(
+            {
+                "message": "Emails sent successfully",
+            },
+            status=status.HTTP_200_OK,
+        )
+
+    def destroy(self, request, slug, pk):
+        workspace_member_invite = WorkspaceMemberInvite.objects.get(
+            pk=pk, workspace__slug=slug
+        )
+        workspace_member_invite.delete()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class WorkspaceJoinEndpoint(BaseAPIView):
+    permission_classes = [
+        AllowAny,
+    ]
+    """Invitation response endpoint the user can respond to the invitation"""
+
+    @invalidate_cache(path="/api/workspaces/", user=False)
+    @invalidate_cache(path="/api/users/me/workspaces/")
+    def post(self, request, slug, pk):
+        workspace_invite = WorkspaceMemberInvite.objects.get(
+            pk=pk, workspace__slug=slug
+        )
+
+        email = request.data.get("email", "")
+
+        # Check the email
+        if email == "" or workspace_invite.email != email:
+            return Response(
+                {"error": "You do not have permission to join the workspace"},
+                status=status.HTTP_403_FORBIDDEN,
+            )
+
+        # If already responded then return error
+        if workspace_invite.responded_at is None:
+            workspace_invite.accepted = request.data.get("accepted", False)
+            workspace_invite.responded_at = timezone.now()
+            workspace_invite.save()
+
+            if workspace_invite.accepted:
+                # Check if the user created account after invitation
+                user = User.objects.filter(email=email).first()
+
+                # If the user is present then create the workspace member
+                if user is not None:
+                    # Check if the user was already a member of workspace then activate the user
+                    workspace_member = WorkspaceMember.objects.filter(
+                        workspace=workspace_invite.workspace, member=user
+                    ).first()
+                    if workspace_member is not None:
+                        workspace_member.is_active = True
+                        workspace_member.role = workspace_invite.role
+                        workspace_member.save()
+                    else:
+                        # Create a Workspace
+                        _ = WorkspaceMember.objects.create(
+                            workspace=workspace_invite.workspace,
+                            member=user,
+                            role=workspace_invite.role,
+                        )
+
+                    # Set the user last_workspace_id to the accepted workspace
+                    user.last_workspace_id = workspace_invite.workspace.id
+                    user.save()
+
+                    # Delete the invitation
+                    workspace_invite.delete()
+
+                # Send event
+                workspace_invite_event.delay(
+                    user=user.id if user is not None else None,
+                    email=email,
+                    user_agent=request.META.get("HTTP_USER_AGENT"),
+                    ip=request.META.get("REMOTE_ADDR"),
+                    event_name="MEMBER_ACCEPTED",
+                    accepted_from="EMAIL",
+                )
+
+                return Response(
+                    {"message": "Workspace Invitation Accepted"},
+                    status=status.HTTP_200_OK,
+                )
+
+            # Workspace invitation rejected
+            return Response(
+                {"message": "Workspace Invitation was not accepted"},
+                status=status.HTTP_200_OK,
+            )
+
+        return Response(
+            {"error": "You have already responded to the invitation request"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    def get(self, request, slug, pk):
+        workspace_invitation = WorkspaceMemberInvite.objects.get(
+            workspace__slug=slug, pk=pk
+        )
+        serializer = WorkSpaceMemberInviteSerializer(workspace_invitation)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+
+class UserWorkspaceInvitationsViewSet(BaseViewSet):
+    serializer_class = WorkSpaceMemberInviteSerializer
+    model = WorkspaceMemberInvite
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(email=self.request.user.email)
+            .select_related("workspace", "workspace__owner", "created_by")
+            .annotate(total_members=Count("workspace__workspace_member"))
+        )
+
+    @invalidate_cache(path="/api/workspaces/", user=False)
+    @invalidate_cache(path="/api/users/me/workspaces/")
+    @invalidate_cache(
+        path="/api/workspaces/:slug/members/", url_params=True, user=False
+    )
+    def create(self, request):
+        invitations = request.data.get("invitations", [])
+        workspace_invitations = WorkspaceMemberInvite.objects.filter(
+            pk__in=invitations, email=request.user.email
+        ).order_by("-created_at")
+
+        # If the user is already a member of workspace and was deactivated then activate the user
+        for invitation in workspace_invitations:
+            # Update the WorkspaceMember for this specific invitation
+            WorkspaceMember.objects.filter(
+                workspace_id=invitation.workspace_id, member=request.user
+            ).update(is_active=True, role=invitation.role)
+
+        # Bulk create the user for all the workspaces
+        WorkspaceMember.objects.bulk_create(
+            [
+                WorkspaceMember(
+                    workspace=invitation.workspace,
+                    member=request.user,
+                    role=invitation.role,
+                    created_by=request.user,
+                )
+                for invitation in workspace_invitations
+            ],
+            ignore_conflicts=True,
+        )
+
+        # Delete joined workspace invites
+        workspace_invitations.delete()
+
+        return Response(status=status.HTTP_204_NO_CONTENT)

apiserver/plane/app/views/workspace/label.py

@@ -0,0 +1,25 @@
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.serializers import LabelSerializer
+from plane.app.views.base import BaseAPIView
+from plane.db.models import Label
+from plane.app.permissions import WorkspaceViewerPermission
+from plane.utils.cache import cache_response
+
+class WorkspaceLabelsEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceViewerPermission,
+    ]
+
+    @cache_response(60 * 60 * 2)
+    def get(self, request, slug):
+        labels = Label.objects.filter(
+            workspace__slug=slug,
+            project__project_projectmember__member=request.user,
+            project__project_projectmember__is_active=True,
+        )
+        serializer = LabelSerializer(labels, many=True).data
+        return Response(serializer, status=status.HTTP_200_OK)

apiserver/plane/app/views/workspace/member.py

@@ -0,0 +1,396 @@
+# Django imports
+from django.db.models import (
+    Q,
+    Count,
+)
+from django.db.models.functions import Cast
+from django.db.models import CharField
+
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.serializers import (
+    WorkSpaceMemberSerializer,
+    TeamSerializer,
+    UserLiteSerializer,
+    WorkspaceMemberAdminSerializer,
+    WorkspaceMemberMeSerializer,
+    ProjectMemberRoleSerializer,
+)
+from plane.app.views.base import BaseAPIView
+from .. import BaseViewSet
+from plane.db.models import (
+    User,
+    Workspace,
+    Team,
+    ProjectMember,
+    Project,
+    WorkspaceMember,
+)
+from plane.app.permissions import (
+    WorkSpaceAdminPermission,
+    WorkspaceEntityPermission,
+    WorkspaceUserPermission,
+)
+from plane.utils.cache import cache_response, invalidate_cache
+
+
+class WorkSpaceMemberViewSet(BaseViewSet):
+    serializer_class = WorkspaceMemberAdminSerializer
+    model = WorkspaceMember
+
+    permission_classes = [
+        WorkspaceEntityPermission,
+    ]
+
+    def get_permissions(self):
+        if self.action == "leave":
+            self.permission_classes = [
+                WorkspaceUserPermission,
+            ]
+        else:
+            self.permission_classes = [
+                WorkspaceEntityPermission,
+            ]
+
+        return super(WorkSpaceMemberViewSet, self).get_permissions()
+
+    search_fields = [
+        "member__display_name",
+        "member__first_name",
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(
+                workspace__slug=self.kwargs.get("slug"),
+                is_active=True,
+            )
+            .select_related("workspace", "workspace__owner")
+            .select_related("member")
+        )
+
+    @cache_response(60 * 60 * 2)
+    def list(self, request, slug):
+        workspace_member = WorkspaceMember.objects.get(
+            member=request.user,
+            workspace__slug=slug,
+            is_active=True,
+        )
+
+        # Get all active workspace members
+        workspace_members = self.get_queryset()
+
+        if workspace_member.role > 10:
+            serializer = WorkspaceMemberAdminSerializer(
+                workspace_members,
+                fields=("id", "member", "role"),
+                many=True,
+            )
+        else:
+            serializer = WorkSpaceMemberSerializer(
+                workspace_members,
+                fields=("id", "member", "role"),
+                many=True,
+            )
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+    @invalidate_cache(
+        path="/api/workspaces/:slug/members/", url_params=True, user=False
+    )
+    def partial_update(self, request, slug, pk):
+        workspace_member = WorkspaceMember.objects.get(
+            pk=pk,
+            workspace__slug=slug,
+            member__is_bot=False,
+            is_active=True,
+        )
+        if request.user.id == workspace_member.member_id:
+            return Response(
+                {"error": "You cannot update your own role"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Get the requested user role
+        requested_workspace_member = WorkspaceMember.objects.get(
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+        # Check if role is being updated
+        # One cannot update role higher than his own role
+        if (
+            "role" in request.data
+            and int(request.data.get("role", workspace_member.role))
+            > requested_workspace_member.role
+        ):
+            return Response(
+                {
+                    "error": "You cannot update a role that is higher than your own role"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        serializer = WorkSpaceMemberSerializer(
+            workspace_member, data=request.data, partial=True
+        )
+
+        if serializer.is_valid():
+            serializer.save()
+            return Response(serializer.data, status=status.HTTP_200_OK)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+    @invalidate_cache(
+        path="/api/workspaces/:slug/members/", url_params=True, user=False
+    )
+    def destroy(self, request, slug, pk):
+        # Check the user role who is deleting the user
+        workspace_member = WorkspaceMember.objects.get(
+            workspace__slug=slug,
+            pk=pk,
+            member__is_bot=False,
+            is_active=True,
+        )
+
+        # check requesting user role
+        requesting_workspace_member = WorkspaceMember.objects.get(
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+
+        if str(workspace_member.id) == str(requesting_workspace_member.id):
+            return Response(
+                {
+                    "error": "You cannot remove yourself from the workspace. Please use leave workspace"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        if requesting_workspace_member.role < workspace_member.role:
+            return Response(
+                {
+                    "error": "You cannot remove a user having role higher than you"
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        if (
+            Project.objects.annotate(
+                total_members=Count("project_projectmember"),
+                member_with_role=Count(
+                    "project_projectmember",
+                    filter=Q(
+                        project_projectmember__member_id=workspace_member.id,
+                        project_projectmember__role=20,
+                    ),
+                ),
+            )
+            .filter(total_members=1, member_with_role=1, workspace__slug=slug)
+            .exists()
+        ):
+            return Response(
+                {
+                    "error": "User is a part of some projects where they are the only admin, they should either leave that project or promote another user to admin."
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Deactivate the users from the projects where the user is part of
+        _ = ProjectMember.objects.filter(
+            workspace__slug=slug,
+            member_id=workspace_member.member_id,
+            is_active=True,
+        ).update(is_active=False)
+
+        workspace_member.is_active = False
+        workspace_member.save()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+    @invalidate_cache(
+        path="/api/workspaces/:slug/members/", url_params=True, user=False
+    )
+    def leave(self, request, slug):
+        workspace_member = WorkspaceMember.objects.get(
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+
+        # Check if the leaving user is the only admin of the workspace
+        if (
+            workspace_member.role == 20
+            and not WorkspaceMember.objects.filter(
+                workspace__slug=slug,
+                role=20,
+                is_active=True,
+            ).count()
+            > 1
+        ):
+            return Response(
+                {
+                    "error": "You cannot leave the workspace as you are the only admin of the workspace you will have to either delete the workspace or promote another user to admin."
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        if (
+            Project.objects.annotate(
+                total_members=Count("project_projectmember"),
+                member_with_role=Count(
+                    "project_projectmember",
+                    filter=Q(
+                        project_projectmember__member_id=request.user.id,
+                        project_projectmember__role=20,
+                    ),
+                ),
+            )
+            .filter(total_members=1, member_with_role=1, workspace__slug=slug)
+            .exists()
+        ):
+            return Response(
+                {
+                    "error": "You are a part of some projects where you are the only admin, you should either leave the project or promote another user to admin."
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # # Deactivate the users from the projects where the user is part of
+        _ = ProjectMember.objects.filter(
+            workspace__slug=slug,
+            member_id=workspace_member.member_id,
+            is_active=True,
+        ).update(is_active=False)
+
+        # # Deactivate the user
+        workspace_member.is_active = False
+        workspace_member.save()
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class WorkspaceMemberUserViewsEndpoint(BaseAPIView):
+    def post(self, request, slug):
+        workspace_member = WorkspaceMember.objects.get(
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+        workspace_member.view_props = request.data.get("view_props", {})
+        workspace_member.save()
+
+        return Response(status=status.HTTP_204_NO_CONTENT)
+
+
+class WorkspaceMemberUserEndpoint(BaseAPIView):
+    def get(self, request, slug):
+        workspace_member = WorkspaceMember.objects.get(
+            member=request.user,
+            workspace__slug=slug,
+            is_active=True,
+        )
+        serializer = WorkspaceMemberMeSerializer(workspace_member)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+
+class WorkspaceProjectMemberEndpoint(BaseAPIView):
+    serializer_class = ProjectMemberRoleSerializer
+    model = ProjectMember
+
+    permission_classes = [
+        WorkspaceEntityPermission,
+    ]
+
+    def get(self, request, slug):
+        # Fetch all project IDs where the user is involved
+        project_ids = (
+            ProjectMember.objects.filter(
+                member=request.user,
+                is_active=True,
+            )
+            .values_list("project_id", flat=True)
+            .distinct()
+        )
+
+        # Get all the project members in which the user is involved
+        project_members = ProjectMember.objects.filter(
+            workspace__slug=slug,
+            project_id__in=project_ids,
+            is_active=True,
+        ).select_related("project", "member", "workspace")
+        project_members = ProjectMemberRoleSerializer(
+            project_members, many=True
+        ).data
+
+        project_members_dict = dict()
+
+        # Construct a dictionary with project_id as key and project_members as value
+        for project_member in project_members:
+            project_id = project_member.pop("project")
+            if str(project_id) not in project_members_dict:
+                project_members_dict[str(project_id)] = []
+            project_members_dict[str(project_id)].append(project_member)
+
+        return Response(project_members_dict, status=status.HTTP_200_OK)
+
+
+class TeamMemberViewSet(BaseViewSet):
+    serializer_class = TeamSerializer
+    model = Team
+    permission_classes = [
+        WorkSpaceAdminPermission,
+    ]
+
+    search_fields = [
+        "member__display_name",
+        "member__first_name",
+    ]
+
+    def get_queryset(self):
+        return self.filter_queryset(
+            super()
+            .get_queryset()
+            .filter(workspace__slug=self.kwargs.get("slug"))
+            .select_related("workspace", "workspace__owner")
+            .prefetch_related("members")
+        )
+
+    def create(self, request, slug):
+        members = list(
+            WorkspaceMember.objects.filter(
+                workspace__slug=slug,
+                member__id__in=request.data.get("members", []),
+                is_active=True,
+            )
+            .annotate(member_str_id=Cast("member", output_field=CharField()))
+            .distinct()
+            .values_list("member_str_id", flat=True)
+        )
+
+        if len(members) != len(request.data.get("members", [])):
+            users = list(
+                set(request.data.get("members", [])).difference(members)
+            )
+            users = User.objects.filter(pk__in=users)
+
+            serializer = UserLiteSerializer(users, many=True)
+            return Response(
+                {
+                    "error": f"{len(users)} of the member(s) are not a part of the workspace",
+                    "members": serializer.data,
+                },
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        workspace = Workspace.objects.get(slug=slug)
+
+        serializer = TeamSerializer(
+            data=request.data, context={"workspace": workspace}
+        )
+        if serializer.is_valid():
+            serializer.save()
+            return Response(serializer.data, status=status.HTTP_201_CREATED)
+        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

apiserver/plane/app/views/workspace/module.py

@@ -0,0 +1,104 @@
+# Django imports
+from django.db.models import (
+    Prefetch,
+    Q,
+    Count,
+)
+
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.views.base import BaseAPIView
+from plane.db.models import (
+    Module,
+    ModuleLink,
+)
+from plane.app.permissions import WorkspaceViewerPermission
+from plane.app.serializers.module import ModuleSerializer
+
+class WorkspaceModulesEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceViewerPermission,
+    ]
+
+    def get(self, request, slug):
+        modules = (
+            Module.objects.filter(workspace__slug=slug)
+            .select_related("project")
+            .select_related("workspace")
+            .select_related("lead")
+            .prefetch_related("members")
+            .prefetch_related(
+                Prefetch(
+                    "link_module",
+                    queryset=ModuleLink.objects.select_related(
+                        "module", "created_by"
+                    ),
+                )
+            )
+            .annotate(
+                total_issues=Count(
+                    "issue_module",
+                    filter=Q(
+                        issue_module__issue__archived_at__isnull=True,
+                        issue_module__issue__is_draft=False,
+                    ),
+                ),
+            )
+            .annotate(
+                completed_issues=Count(
+                    "issue_module__issue__state__group",
+                    filter=Q(
+                        issue_module__issue__state__group="completed",
+                        issue_module__issue__archived_at__isnull=True,
+                        issue_module__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                cancelled_issues=Count(
+                    "issue_module__issue__state__group",
+                    filter=Q(
+                        issue_module__issue__state__group="cancelled",
+                        issue_module__issue__archived_at__isnull=True,
+                        issue_module__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                started_issues=Count(
+                    "issue_module__issue__state__group",
+                    filter=Q(
+                        issue_module__issue__state__group="started",
+                        issue_module__issue__archived_at__isnull=True,
+                        issue_module__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                unstarted_issues=Count(
+                    "issue_module__issue__state__group",
+                    filter=Q(
+                        issue_module__issue__state__group="unstarted",
+                        issue_module__issue__archived_at__isnull=True,
+                        issue_module__issue__is_draft=False,
+                    ),
+                )
+            )
+            .annotate(
+                backlog_issues=Count(
+                    "issue_module__issue__state__group",
+                    filter=Q(
+                        issue_module__issue__state__group="backlog",
+                        issue_module__issue__archived_at__isnull=True,
+                        issue_module__issue__is_draft=False,
+                    ),
+                )
+            )
+            .order_by(self.kwargs.get("order_by", "-created_at"))
+        )
+
+        serializer = ModuleSerializer(modules, many=True).data
+        return Response(serializer, status=status.HTTP_200_OK)

apiserver/plane/app/views/workspace/state.py

@@ -0,0 +1,25 @@
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.serializers import StateSerializer
+from plane.app.views.base import BaseAPIView
+from plane.db.models import State
+from plane.app.permissions import WorkspaceEntityPermission
+from plane.utils.cache import cache_response
+
+class WorkspaceStatesEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceEntityPermission,
+    ]
+
+    @cache_response(60 * 60 * 2)
+    def get(self, request, slug):
+        states = State.objects.filter(
+            workspace__slug=slug,
+            project__project_projectmember__member=request.user,
+            project__project_projectmember__is_active=True,
+        )
+        serializer = StateSerializer(states, many=True).data
+        return Response(serializer, status=status.HTTP_200_OK)

apiserver/plane/app/views/workspace/user.py

@@ -0,0 +1,573 @@
+# Python imports
+from datetime import date
+from dateutil.relativedelta import relativedelta
+
+# Django imports
+from django.utils import timezone
+from django.db.models import (
+    OuterRef,
+    Func,
+    F,
+    Q,
+    Count,
+    Case,
+    Value,
+    CharField,
+    When,
+    Max,
+    IntegerField,
+    UUIDField,
+)
+from django.db.models.functions import ExtractWeek, Cast
+from django.db.models.fields import DateField
+from django.contrib.postgres.aggregates import ArrayAgg
+from django.contrib.postgres.fields import ArrayField
+from django.db.models.functions import Coalesce
+
+# Third party modules
+from rest_framework import status
+from rest_framework.response import Response
+
+# Module imports
+from plane.app.serializers import (
+    WorkSpaceSerializer,
+    ProjectMemberSerializer,
+    IssueActivitySerializer,
+    IssueSerializer,
+    WorkspaceUserPropertiesSerializer,
+)
+from plane.app.views.base import BaseAPIView
+from plane.db.models import (
+    User,
+    Workspace,
+    ProjectMember,
+    IssueActivity,
+    Issue,
+    IssueLink,
+    IssueAttachment,
+    IssueSubscriber,
+    Project,
+    WorkspaceMember,
+    CycleIssue,
+    WorkspaceUserProperties,
+)
+from plane.app.permissions import (
+    WorkspaceEntityPermission,
+    WorkspaceViewerPermission,
+)
+from plane.utils.issue_filters import issue_filters
+
+
+class UserLastProjectWithWorkspaceEndpoint(BaseAPIView):
+    def get(self, request):
+        user = User.objects.get(pk=request.user.id)
+
+        last_workspace_id = user.last_workspace_id
+
+        if last_workspace_id is None:
+            return Response(
+                {
+                    "project_details": [],
+                    "workspace_details": {},
+                },
+                status=status.HTTP_200_OK,
+            )
+
+        workspace = Workspace.objects.get(pk=last_workspace_id)
+        workspace_serializer = WorkSpaceSerializer(workspace)
+
+        project_member = ProjectMember.objects.filter(
+            workspace_id=last_workspace_id, member=request.user
+        ).select_related("workspace", "project", "member", "workspace__owner")
+
+        project_member_serializer = ProjectMemberSerializer(
+            project_member, many=True
+        )
+
+        return Response(
+            {
+                "workspace_details": workspace_serializer.data,
+                "project_details": project_member_serializer.data,
+            },
+            status=status.HTTP_200_OK,
+        )
+
+
+class WorkspaceUserProfileIssuesEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceViewerPermission,
+    ]
+
+    def get(self, request, slug, user_id):
+        fields = [
+            field
+            for field in request.GET.get("fields", "").split(",")
+            if field
+        ]
+        filters = issue_filters(request.query_params, "GET")
+
+        # Custom ordering for priority and state
+        priority_order = ["urgent", "high", "medium", "low", "none"]
+        state_order = [
+            "backlog",
+            "unstarted",
+            "started",
+            "completed",
+            "cancelled",
+        ]
+
+        order_by_param = request.GET.get("order_by", "-created_at")
+        issue_queryset = (
+            Issue.issue_objects.filter(
+                Q(assignees__in=[user_id])
+                | Q(created_by_id=user_id)
+                | Q(issue_subscribers__subscriber_id=user_id),
+                workspace__slug=slug,
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True
+            )
+            .filter(**filters)
+            .select_related("workspace", "project", "state", "parent")
+            .prefetch_related("assignees", "labels", "issue_module__module")
+            .annotate(cycle_id=F("issue_cycle__cycle_id"))
+            .annotate(
+                link_count=IssueLink.objects.filter(issue=OuterRef("id"))
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                attachment_count=IssueAttachment.objects.filter(
+                    issue=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                sub_issues_count=Issue.issue_objects.filter(
+                    parent=OuterRef("id")
+                )
+                .order_by()
+                .annotate(count=Func(F("id"), function="Count"))
+                .values("count")
+            )
+            .annotate(
+                label_ids=Coalesce(
+                    ArrayAgg(
+                        "labels__id",
+                        distinct=True,
+                        filter=~Q(labels__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                assignee_ids=Coalesce(
+                    ArrayAgg(
+                        "assignees__id",
+                        distinct=True,
+                        filter=~Q(assignees__id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+                module_ids=Coalesce(
+                    ArrayAgg(
+                        "issue_module__module_id",
+                        distinct=True,
+                        filter=~Q(issue_module__module_id__isnull=True),
+                    ),
+                    Value([], output_field=ArrayField(UUIDField())),
+                ),
+            )
+            .order_by("created_at")
+        ).distinct()
+
+        # Priority Ordering
+        if order_by_param == "priority" or order_by_param == "-priority":
+            priority_order = (
+                priority_order
+                if order_by_param == "priority"
+                else priority_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                priority_order=Case(
+                    *[
+                        When(priority=p, then=Value(i))
+                        for i, p in enumerate(priority_order)
+                    ],
+                    output_field=CharField(),
+                )
+            ).order_by("priority_order")
+
+        # State Ordering
+        elif order_by_param in [
+            "state__name",
+            "state__group",
+            "-state__name",
+            "-state__group",
+        ]:
+            state_order = (
+                state_order
+                if order_by_param in ["state__name", "state__group"]
+                else state_order[::-1]
+            )
+            issue_queryset = issue_queryset.annotate(
+                state_order=Case(
+                    *[
+                        When(state__group=state_group, then=Value(i))
+                        for i, state_group in enumerate(state_order)
+                    ],
+                    default=Value(len(state_order)),
+                    output_field=CharField(),
+                )
+            ).order_by("state_order")
+        # assignee and label ordering
+        elif order_by_param in [
+            "labels__name",
+            "-labels__name",
+            "assignees__first_name",
+            "-assignees__first_name",
+        ]:
+            issue_queryset = issue_queryset.annotate(
+                max_values=Max(
+                    order_by_param[1::]
+                    if order_by_param.startswith("-")
+                    else order_by_param
+                )
+            ).order_by(
+                "-max_values"
+                if order_by_param.startswith("-")
+                else "max_values"
+            )
+        else:
+            issue_queryset = issue_queryset.order_by(order_by_param)
+
+        issues = IssueSerializer(
+            issue_queryset, many=True, fields=fields if fields else None
+        ).data
+        return Response(issues, status=status.HTTP_200_OK)
+
+
+class WorkspaceUserPropertiesEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceViewerPermission,
+    ]
+
+    def patch(self, request, slug):
+        workspace_properties = WorkspaceUserProperties.objects.get(
+            user=request.user,
+            workspace__slug=slug,
+        )
+
+        workspace_properties.filters = request.data.get(
+            "filters", workspace_properties.filters
+        )
+        workspace_properties.display_filters = request.data.get(
+            "display_filters", workspace_properties.display_filters
+        )
+        workspace_properties.display_properties = request.data.get(
+            "display_properties", workspace_properties.display_properties
+        )
+        workspace_properties.save()
+
+        serializer = WorkspaceUserPropertiesSerializer(workspace_properties)
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
+    def get(self, request, slug):
+        (
+            workspace_properties,
+            _,
+        ) = WorkspaceUserProperties.objects.get_or_create(
+            user=request.user, workspace__slug=slug
+        )
+        serializer = WorkspaceUserPropertiesSerializer(workspace_properties)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
+
+class WorkspaceUserProfileEndpoint(BaseAPIView):
+    def get(self, request, slug, user_id):
+        user_data = User.objects.get(pk=user_id)
+
+        requesting_workspace_member = WorkspaceMember.objects.get(
+            workspace__slug=slug,
+            member=request.user,
+            is_active=True,
+        )
+        projects = []
+        if requesting_workspace_member.role >= 10:
+            projects = (
+                Project.objects.filter(
+                    workspace__slug=slug,
+                    project_projectmember__member=request.user,
+                    project_projectmember__is_active=True,
+                )
+                .annotate(
+                    created_issues=Count(
+                        "project_issue",
+                        filter=Q(
+                            project_issue__created_by_id=user_id,
+                            project_issue__archived_at__isnull=True,
+                            project_issue__is_draft=False,
+                        ),
+                    )
+                )
+                .annotate(
+                    assigned_issues=Count(
+                        "project_issue",
+                        filter=Q(
+                            project_issue__assignees__in=[user_id],
+                            project_issue__archived_at__isnull=True,
+                            project_issue__is_draft=False,
+                        ),
+                    )
+                )
+                .annotate(
+                    completed_issues=Count(
+                        "project_issue",
+                        filter=Q(
+                            project_issue__completed_at__isnull=False,
+                            project_issue__assignees__in=[user_id],
+                            project_issue__archived_at__isnull=True,
+                            project_issue__is_draft=False,
+                        ),
+                    )
+                )
+                .annotate(
+                    pending_issues=Count(
+                        "project_issue",
+                        filter=Q(
+                            project_issue__state__group__in=[
+                                "backlog",
+                                "unstarted",
+                                "started",
+                            ],
+                            project_issue__assignees__in=[user_id],
+                            project_issue__archived_at__isnull=True,
+                            project_issue__is_draft=False,
+                        ),
+                    )
+                )
+                .values(
+                    "id",
+                    "logo_props",
+                    "created_issues",
+                    "assigned_issues",
+                    "completed_issues",
+                    "pending_issues",
+                )
+            )
+
+        return Response(
+            {
+                "project_data": projects,
+                "user_data": {
+                    "email": user_data.email,
+                    "first_name": user_data.first_name,
+                    "last_name": user_data.last_name,
+                    "avatar": user_data.avatar,
+                    "cover_image": user_data.cover_image,
+                    "date_joined": user_data.date_joined,
+                    "user_timezone": user_data.user_timezone,
+                    "display_name": user_data.display_name,
+                },
+            },
+            status=status.HTTP_200_OK,
+        )
+
+
+class WorkspaceUserActivityEndpoint(BaseAPIView):
+    permission_classes = [
+        WorkspaceEntityPermission,
+    ]
+
+    def get(self, request, slug, user_id):
+        projects = request.query_params.getlist("project", [])
+
+        queryset = IssueActivity.objects.filter(
+            ~Q(field__in=["comment", "vote", "reaction", "draft"]),
+            workspace__slug=slug,
+            project__project_projectmember__member=request.user,
+            project__project_projectmember__is_active=True,
+            actor=user_id,
+        ).select_related("actor", "workspace", "issue", "project")
+
+        if projects:
+            queryset = queryset.filter(project__in=projects)
+
+        return self.paginate(
+            request=request,
+            queryset=queryset,
+            on_results=lambda issue_activities: IssueActivitySerializer(
+                issue_activities, many=True
+            ).data,
+        )
+
+
+class WorkspaceUserProfileStatsEndpoint(BaseAPIView):
+    def get(self, request, slug, user_id):
+        filters = issue_filters(request.query_params, "GET")
+
+        state_distribution = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug,
+                assignees__in=[user_id],
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .filter(**filters)
+            .annotate(state_group=F("state__group"))
+            .values("state_group")
+            .annotate(state_count=Count("state_group"))
+            .order_by("state_group")
+        )
+
+        priority_order = ["urgent", "high", "medium", "low", "none"]
+
+        priority_distribution = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug,
+                assignees__in=[user_id],
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .filter(**filters)
+            .values("priority")
+            .annotate(priority_count=Count("priority"))
+            .filter(priority_count__gte=1)
+            .annotate(
+                priority_order=Case(
+                    *[
+                        When(priority=p, then=Value(i))
+                        for i, p in enumerate(priority_order)
+                    ],
+                    default=Value(len(priority_order)),
+                    output_field=IntegerField(),
+                )
+            )
+            .order_by("priority_order")
+        )
+
+        created_issues = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug,
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True,
+                created_by_id=user_id,
+            )
+            .filter(**filters)
+            .count()
+        )
+
+        assigned_issues_count = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug,
+                assignees__in=[user_id],
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .filter(**filters)
+            .count()
+        )
+
+        pending_issues_count = (
+            Issue.issue_objects.filter(
+                ~Q(state__group__in=["completed", "cancelled"]),
+                workspace__slug=slug,
+                assignees__in=[user_id],
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .filter(**filters)
+            .count()
+        )
+
+        completed_issues_count = (
+            Issue.issue_objects.filter(
+                workspace__slug=slug,
+                assignees__in=[user_id],
+                state__group="completed",
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .filter(**filters)
+            .count()
+        )
+
+        subscribed_issues_count = (
+            IssueSubscriber.objects.filter(
+                workspace__slug=slug,
+                subscriber_id=user_id,
+                project__project_projectmember__member=request.user,
+                project__project_projectmember__is_active=True,
+            )
+            .filter(**filters)
+            .count()
+        )
+
+        upcoming_cycles = CycleIssue.objects.filter(
+            workspace__slug=slug,
+            cycle__start_date__gt=timezone.now().date(),
+            issue__assignees__in=[
+                user_id,
+            ],
+        ).values("cycle__name", "cycle__id", "cycle__project_id")
+
+        present_cycle = CycleIssue.objects.filter(
+            workspace__slug=slug,
+            cycle__start_date__lt=timezone.now().date(),
+            cycle__end_date__gt=timezone.now().date(),
+            issue__assignees__in=[
+                user_id,
+            ],
+        ).values("cycle__name", "cycle__id", "cycle__project_id")
+
+        return Response(
+            {
+                "state_distribution": state_distribution,
+                "priority_distribution": priority_distribution,
+                "created_issues": created_issues,
+                "assigned_issues": assigned_issues_count,
+                "completed_issues": completed_issues_count,
+                "pending_issues": pending_issues_count,
+                "subscribed_issues": subscribed_issues_count,
+                "present_cycles": present_cycle,
+                "upcoming_cycles": upcoming_cycles,
+            }
+        )
+
+
+class UserActivityGraphEndpoint(BaseAPIView):
+    def get(self, request, slug):
+        issue_activities = (
+            IssueActivity.objects.filter(
+                actor=request.user,
+                workspace__slug=slug,
+                created_at__date__gte=date.today() + relativedelta(months=-6),
+            )
+            .annotate(created_date=Cast("created_at", DateField()))
+            .values("created_date")
+            .annotate(activity_count=Count("created_date"))
+            .order_by("created_date")
+        )
+
+        return Response(issue_activities, status=status.HTTP_200_OK)
+
+
+class UserIssueCompletedGraphEndpoint(BaseAPIView):
+    def get(self, request, slug):
+        month = request.GET.get("month", 1)
+
+        issues = (
+            Issue.issue_objects.filter(
+                assignees__in=[request.user],
+                workspace__slug=slug,
+                completed_at__month=month,
+                completed_at__isnull=False,
+            )
+            .annotate(completed_week=ExtractWeek("completed_at"))
+            .annotate(week=F("completed_week") % 4)
+            .values("week")
+            .annotate(completed_count=Count("completed_week"))
+            .order_by("week")
+        )
+
+        return Response(issues, status=status.HTTP_200_OK)