In everyday conversation, people greet each other, exchange banter, and then eventually end the conversation and continue on their way. Low-level TCP connections function in the same way over lightweight channels in RabbitMQ. Applications that are going to exchange messages over RabbitMQ need to establish a permanent connection to the message broker. When this connection is established, a channel needs to be created so that message-oriented interactions, such as publishing and consuming messages, can be performed.
After demonstrating these fundamentals, this chapter will cover how a broker uses exchanges to determine where each message should be delivered. An exchange is like a mailman: it delivers messages to ...
