Back to Nodesnetwork1 input → 0 outputsws outmsg (object)networkws outData flowProperty Sends a message over an existing WebSocket session identified by msg.wsSession. Input wsSession object Session reference from ec-ws-in. Required. payload any Data to send (normal mode). Objects are JSON-serialized. stream Readable Node.js Readable stream (streaming mode, auto-detected). Each chunk is sent immediately as a separate WebSocket message.