Message Channel

To understand the use case behind Message Channels read Asynchronous Processing section for Application level processing and Distributed Bus section for cross application communication.

Message Channel

To create Kafka Backed Message Channel, we need to create Service Context.

class MessagingConfiguration
{
    #[ServiceContext] 
    public function orderChannel()
    {
        return KafkaMessageChannelBuilder::create("orders");
    }
}

Now orders channel will be available in our Messaging System.

Customize Topic Name

By default the queue name will follow channel name, which in above example will be "orders". However we can use "orders" as reference name in our Application, yet name queue differently:

Customize Group Id

We can also customize the group id, which by default following channel name:

Final Failure Strategy

To define :