Websocket Source Options Properties grouped by prefix: websocket.supplier allowed-origins The allowed origins. (String, default: *) path The path on which server WebSocket handler is exposed. (String, default: /websocket) websocket.supplier.sock-js enable Enable SockJS service on the server. Default is 'false' (Boolean, default: false) Examples To verify that the websocket-source receives messages from Websocket clients, you can use the following simple end-to-end setup. Step 1: Start kafka Step 2: Deploy websocket-source on a specific port, say 8080 Step 3: Connect a websocket client on port 8080 path "/websocket", and send some messages. You can start a kafka console consumer and see the messages there.