RabbitMQ in 100 Seconds

RabbitMQ: An Introduction

This video provides an introduction to RabbitMQ, an open-source distributed message broker that allows microservices to communicate asynchronously with a variety of different protocols.

What is RabbitMQ?

• RabbitMQ is an open-source distributed message broker that works like a post office in the cloud.

• It was developed in 2007 and written in the Erlang programming language which itself is famous for powering the Open Telecom Platform.

• RabbitMQ allows microservices to communicate asynchronously with a variety of different protocols.

How does it work?

• When a request goes to a REST API, instead of processing the image there, it produces a message with the required data and publishes it to an exchange.

• The exchange is then responsible for routing it to one or more queues which are linked to the exchange with a binding and routing key.

• To send a message, create a file in your favorite server-side language and bring in a library that implements messaging protocol like Advanced Messaging Queue Protocol 091. Connect to RabbitMQ on that connection we can use the create channel method to declare cue which can be named whatever you want cues can be durable where metadata is stored on disk or transient where it's only stored in memory. Now produce a message by sending buffer to that queue.

• To receive messages, create another file and reference the same queue name on that connection. Use consume method to receive messages and run callback function with its data.

Conclusion

• In conclusion, RabbitMQ is an architecture that allows servers to both publish and subscribe to data thanks to the RabbitMQ middleman. It is a powerful tool that can be used to manage multiple queues at the same time, and it allows multiple servers to subscribe to the same messages but consume them at different times.