[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Network](./puppeteer.protocol.network.md) > [EventSourceMessageReceivedEvent](./puppeteer.protocol.network.eventsourcemessagereceivedevent.md) > [requestId](./puppeteer.protocol.network.eventsourcemessagereceivedevent.requestid.md) ## Protocol.Network.EventSourceMessageReceivedEvent.requestId property Request identifier. Signature: ```typescript requestId: RequestId; ```