RabbitMQ

A message broker is a middleman that allows different parts of the system to communicate without knowing about each other. Everyone is friends with the message broker, and the message broker is friends with everyone.

What Is RabbitMQ?

RabbitMQ is a popular open-source message broker that implements the AMQP protocol and I've personally been using it happily (well, mostly happily) for years. It's great because it's open-source, flexible, powerful, and (reasonably) easy to use. There are a few things we're going to use to interact with RabbitMQ:

The RabbitMQ server: The message broker itself. It's a server you can run locally (or on a server in production) to send and receive messages.
Client library: We'll be programming in TypeScript, so our code will use the AMQP library to interact with the RabbitMQ server.
Management UI: RabbitMQ comes with a management UI that you can use to monitor and manage your RabbitMQ server. It's a web-based UI that you can access in your browser.

Assignment

Let's get Rabbit 3.13.0 (or higher) installed locally. For simplicity, we're going to use Docker If you're brand new to Docker, you might want to check out our Docker course first.

Run this command in a terminal to start RabbitMQ:

docker run -it --rm --name rabbitmq -p 5672:5672 -p 15672:15672 rabbitmq:3.13-management

This will download and run the RabbitMQ server and ManagementUI until you kill it with Ctrl+C, so you might want to do it in a separate terminal window.

The server itself is running on port 5672, but you won't interact with it in your browser, just through code. However, you can use the management UI in your browser. Open http://localhost:15672 and log in with the username guest and password guest.

If all is well, you should see that you have a single "Node" running in the "Overview" tab. You can shutdown the Docker container when you're done with ctrl+c.

Run and submit the CLI tests using the Boot.dev CLI Tool while the docker container is still running.

The Boot.dev CLI requires you to be signed in to submit your solution!

Copy/paste one of the following commands into your terminal:

Run

bootdev run d61e0dc9-c622-499e-820c-a8e2deb84486

Submit

bootdev run d61e0dc9-c622-499e-820c-a8e2deb84486 -s

Default Base URL: http://localhost:15672
Optionally configure your CLI to override the default base URL by running bootdev config base_url <url>

Run the CLI commands to test your solution.

GET /api/overview
basic authentication = guest:guest
- 1.
  Expecting status code: 200
- 2.
  Expecting JSON at
```
.product_name
```
  to be equal to
```
RabbitMQ
```

Using the Bootdev CLI

The Bootdev CLI is the only way to submit your solution for this type of lesson. We need to be able to run commands in your environment to verify your solution.

You can install it here. It's a Go program hosted on GitHub, so you'll need Go installed as well. Instructions are on the GitHub page.