You can add details to your WebSocket or Socket.IO request, such as parameters, headers, and connection settings. Click the Params, Headers, or Settings tab to make changes.
You can’t add or change request details while you’re connected. Make any changes before you connect, or click Disconnect to stop the current connection.
On the Params tab, add any parameters you’d like to append to the WebSocket URL. This works similarly to sending parameters in a REST request.
On the Headers tab, enter any headers you’d like to send with your message. This works similarly to configuring request headers in a REST request.
You can configure the following settings on the Settings tab: