console

Example console chat app

Before running this example make sure you created chat namespace in Centrifugo configuration and allowed publishing into channel - i.e. using config like this:

{
  "token_hmac_secret_key": "9c4a1a64-7479-4c2c-9895-14b0676c71d8",
  "admin_password": "a15cfff3-b7b7-4261-87ad-c6825c0400b5",
  "admin_secret": "3aaead2e-2d3d-48cb-b330-c54c44b4eac0",
  "api_key": "cb0f41cd-5954-443d-8628-a4453592443c",
  "allowed_origins": ["http://localhost:8000"],
  "namespaces": [
    {
      "name": "chat",
      "anonymous": false,
      "publish": true,
      "join_leave": true,
      "presence": true,
      "presence_stats": true,
	    "allow_publish_for_subscriber": true,
      "allow_subscribe_for_client": true
    }
  ]
}

Call centrifugo genconfig to create a basic config.json at the first time.

When you use your own configuration, please re-generate the tokens registered in example.dart:

• Use centrifugo gentoken --user dart to generate the user's JWT token.
• Use centrifugo gensubtoken --user dart --channel chat:index to generate the user's subscription JWT token.

Run Centrifugo with the admin option, to later send messages to all subscribers:

centrifugo --admin

For testing purposes only, you can also run Centrifugo in insecure client mode, so that the validity of JWT tokens are not checked:

centrifugo --client_insecure --admin

Now check the IP address if your system with ipconfig on Windows and ip adds on Unix-like systems and change the serverAddr variable in example.dart accordingly.

When the configuration is correct, you can launch the console app with dart example.dart.

When you have started centrifugo with the --admin option, you can also open http://localhost:8000/#/actions to send a message to your console app with the following settings:

• Method: Publish
• Channel: chat:index
• Data: {"message": "hello world", "username": "admin"}

Congratulations, you have a running centrifugo system and a Flutter console app that connects to it!