Different Ways to Activate Pusher Event with JavaScript

I've been struggling to activate an event on pusher.com using Javascript 😕

Just so you know, I have enabled the client events...

I've meticulously followed the instructions in the client JavaScript script.

Is there a correct example available? 🤔

Answer â„–1

To begin with, if you want to send client events, you must establish an authentication endpoint. Typically, this endpoint is operated on the server where your application is hosted. The javascript library anticipates that the authentication endpoint will be situated at http://yourapp.com/pusher/auth

The implementation of the authentication endpoint will vary depending on the type of server you are using. Most major platforms already have a Pusher server library available.

Although there are workarounds to avoid using an authentication endpoint, it would mean exposing the Pusher app secret key to the client, which poses security risks.

You can refer to an example of an authentication endpoint suitable for Google App Engine here.

Further insights into the functionality of the authentication endpoint:

It accepts POST requests containing the following keys:

socket_id , channel_id

The Pusher javascript library initiates a POST request like this

example.com:80 POST /pusher/auth?socket_id=123456789&channel_id=private-channel

The response from the authentication endpoint is in JSON format and appears as follows:

{"auth": "987654321:1234567890abcdef1234567890abcdef"}

where 987654321 represents your Pusher Application ID and the remaining segment is the HMAC-SHA256 hash of the Pusher App Secret Key, socket id, and channel name combined together

This authentication string is then utilized by the javascript Pusher library for subscribing to a private channel

All other interactions with Pusher are managed by the javascript library through websockets within the browser.

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