Communicating between microservices
There are a number of approaches to communicate between microservices, as mentioned; REST endpoints provide a nice landing pad for messages. You may recall the preceding graphic, which shows a message queue as the central conduit between services. This is one of the most common ways to handle message passing and we'll use RabbitMQ to demonstrate this.
In this case, we'll show when new users register to an e-mail queue for the delivery of a message in our RabbitMQ installation, which will then be picked up by an emailing microservice.
Note
You can read more about RabbitMQ, which utilizes Advanced Message Queuing Protocol (AMQP) here: https://www.rabbitmq.com/.
To install an AMQP client for Go, we'll recommend Sean ...
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