[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Network](./puppeteer.protocol.network.md) > [WebSocketFrame](./puppeteer.protocol.network.websocketframe.md) > [opcode](./puppeteer.protocol.network.websocketframe.opcode.md) ## Protocol.Network.WebSocketFrame.opcode property WebSocket message opcode. Signature: ```typescript opcode: number; ```