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Technote demonstrating a Pusher.JS-based app that subscribes to remote events, such as events generated from another Pusher-based app

This technote is intended for developers interested in learning more about the Pusher's API. This is not a complete tutorial. Instead, you will be guided straightforwardly to a simple application with two NodeJS-based scripts: One for authentication purposes and other for the subscription function.

Get your app credentials (from https://dashboard.pusher.com)

You will need to visit Pusher.com web service to get your app credentials. Once you get the data, make sure you edit the config-sample.json and rename it to config.json:

{
  "APP_ID"       : "REPLACE_APP_ID",
  "APP_KEY"      : "REPLACE_APP_KEY",
  "SECRET"       : "REPLACE_APP_SECRET",
  "authEndpoint" : "REPLACE_YOUR_URL:5000/pusher/auth",
  "cluster"      : "REPLACE_CLUSTER_NAME"
}

Architecture requirements and initial installation

  • "test_auth.js" — is the authentication system. This JavaScript application will be called from Pusher.com service. This application uses an NPM package named "Pusher" and it exposes the "/pusher/auth" end-point.

  • Sample "test.js" will use the NPM package named "Pusher-JS" and will mainly attempt to subscribe to a private channel named "private-channel".