Best approach for integrating Django with an external API using RabbitMQ (Pub/Sub)?

I am developing a decoupled system consisting of two APIs that communicate through RabbitMQ. One API is entirely developed by me using Django, while the other is an external API managed by another developer (I can request changes but don’t have access to its code).

The integration works as follows:

  1. My Django API publishes a message to Queue A in RabbitMQ.
  2. The external API consumes messages from Queue A, processes them, and publishes a response to Queue B.
  3. My Django API then consumes messages from Queue B.

In this setup:

  • My Django API acts as a publisher for Queue A and a consumer for Queue B.
  • The external API acts as a consumer for Queue A and a publisher for Queue B.

I want to validate whether this is a good approach and if there are alternative ways to achieve this communication efficiently.

Additionally, if this approach is valid, how should I implement the consumer for Queue B in Django?

  • Where should I place the RabbitMQ consumer so that it integrates well with Django’s ecosystem?
  • How can I ensure it follows Django’s standard execution flow?
  • Would it be best to run it as a separate process, a Django management command, or another approach?

I want to avoid disrupting Django’s natural workflow while ensuring my consumer runs reliably.

Any insights or best practices for this kind of architecture would be greatly appreciated.

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