Publishing real-time events from PostgreSQL

Open the JavaScript console to watch log output.

Connect to your PostgreSQL database and publish an event:

SELECT pg_notify('crossbar_pubsub_event',
   json_build_object(
      'type', 'direct',
      'topic', 'com.example.topic1',
      'args', json_build_array(23, 7, 'hello world!'),
      'kwargs', json_build_object('foo', 'bar', 'baz', 42)
   )::text
);
      

You should see the event being received in JavaScript.