Broadcast from Laravel API to Redis only work when using Postman

Hi,

I have been banging my head for the last 5 hours with this.

So I am writing an API using Laravel and testing it with Postman. The consumer of the API is a separate Laravel installation without any frontend framework.

In the API side, I created an event that will broadcast to Redis. The event is triggered from a method in a Controller. This method got executed when requesting a POST route in the API.

public function store(Request $request) {
    //something else here
    //
    //

    event( new SomeEventStarted() );
}

In the Events class that implements ShouldBroadcast, the broadcastOn() method is also a simple one:

public function broadcastOn()    
{
    return new Channel('channel-name');
}

I have configured Redis on Laravel and on the server properly. To monitor Redis, I simply ran:

redis-cli
psubscribe *

So now when testing the API endpoint using Postman, the event got fired as expected as I can see the output being captured in Redis CLI.

1) "pmessage"
2) "*"
3) "channel-name-"
4) "{\"event\":\"App\\Events\\SomeEventStarted\",\"data\":{\"socket\":null},\"socket\":null}"

However, when I am consuming the API from the client-side Laravel app (localhost also) via Guzzle, the event did not fire. The controller got executed till the end normally as I can still see data inserted into the database but nothing on the Redis CLI.

Would really love to know what's happening.

Thank you.