Golang Microservices: Events and Background Jobs using RabbitMQ

Let’s add support for RabbitMQ! RabbitMQ is a message-queueing software also known as a message broker or queue manager. It supports protocols such as AMQP, MQTT, STOMP, to name a few.

RabbitMQ could be used for long-running tasks, for example background jobs; and for communication between different services.

In this RabbitMQ tutorial, for our example we will use RabbitMQ to produce events that indicate Tasks procesed, either “created”, “updated” or “archived”; then a new ElasticSearch Indexer server is implemented to consume those events and call the corresponding ElasticSearch repository type to update the ElasticSearch values.

This new server supports a similar API just like net/http, making it simple to handle a graceful shutdown to clean up all the used resources.

In Go to interact with RabbitMQ, we can use:

* github.com/streadway/amqp

This episode is not going to compare RabbitMQ with other Message Brokers, like Kafka or SQS, but I’m planning to do that in the future.

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* Example code: https://github.com/MarioCarrion/todo-api-microservice-example/tree/b886f4346851c860728ec7924d8b3196139af11e
* Previous Episode: “Golang Microservices: Searching with ElasticSearch”: https://youtu.be/ZrdbQRYst5E
* Playlist “Building Microservices in Go/Golang”: https://www.youtube.com/playlist?list=PL7yAAGMOat_Fn8sAXIk0WyBfK_sT1pohu
* Playlist “Golang Tools and Packages”: https://www.youtube.com/playlist?list=PL7yAAGMOat_HEEOvH99agDs_5g51A0Ls3
* Playlist “Testing in Go”: https://www.youtube.com/playlist?list=PL7yAAGMOat_HSeW4zF0uRL9EaHadE4ZZq

00:00 – Start
00:19 – What is RabbitMQ?
00:53 – How does RabbitMQ work?
02:00 – Demo time
13:04 – Parting words

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Who am I:

Hello👋🏼! I’m Mario, a Hands-on Software Architect and Lead Backend Engineer with more than 16 years of professional experience building all kinds of software including on-premise Industrial Automation Systems, Linux Accessibility Desktop and Browser Components as well as Distributed Advertising Microservices.

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