📄 playwright-python/dotnet/docs/api/class-websocket

File: class-websocket.md | Updated: 11/18/2025

Source: https://playwright.dev/dotnet/docs/api/class-websocket

Skip to main content

On this page

The WebSocket class represents WebSocket connections within a page. It provides the ability to inspect and manipulate the data being transmitted and received.

If you want to intercept or modify WebSocket frames, consider using WebSocketRoute .

Methods​

IsClosed​

Added before v1.9 webSocket.IsClosed

Indicates that the web socket has been closed.

Usage

WebSocket.IsClosed

Returns

Url​

Added before v1.9 webSocket.Url

Contains the URL of the WebSocket.

Usage

WebSocket.Url

Returns

Events​

event Close​

Added before v1.9 webSocket.event Close

Fired when the websocket closes.

Usage

WebSocket.Close += async (_, webSocket) => {};

Event data

event FrameReceived​

Added in: v1.9 webSocket.event FrameReceived

Fired when the websocket receives a frame.

Usage

WebSocket.FrameReceived += async (_, webSocketFrame) => {};

Event data

event FrameSent​

Added in: v1.9 webSocket.event FrameSent

Fired when the websocket sends a frame.

Usage

WebSocket.FrameSent += async (_, webSocketFrame) => {};

Event data

event SocketError​

Added in: v1.9 webSocket.event SocketError

Fired when the websocket has an error.

Usage

WebSocket.SocketError += async (_, value) => {};

Event data