Hands-On Software Architecture with Golang

The queuing model

In the standard queuing model, there is a first-in, first-out durable buffer between a producer and a consumer, as shown in the following diagram:

All producers and consumers connect to a Broker during initialization. consumers additionally express interest in certain queues by registering for consumption against them. Whenever a Producer sends a message to a Queue, the message is transported to the broker and stored in durable storage against the Queue. These messages are delivered to one or more consumers who have registered for the Queue. If more than one consumer is registered in the queuing model, each message is delivered ...