[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Network](./puppeteer.protocol.network.md) > [RequestWillBeSentEvent](./puppeteer.protocol.network.requestwillbesentevent.md) > [frameId](./puppeteer.protocol.network.requestwillbesentevent.frameid.md) ## Protocol.Network.RequestWillBeSentEvent.frameId property Frame identifier. Signature: ```typescript frameId?: Page.FrameId; ```