Implementing a SOA in Django using celery

A message queue (such as rabbitmq brokered by celery) is a perfectly fine way to handle communication between SOA components. Additionally, if you need real-time communication without sharing databases between services, REST is basically made for this. There are several options for implementing REST services on top of Django, with Tastypie and Django-Rest-Framework being popular choices.

As for passing authentication between components, Django has several options for this. Contrary to popular opinion, the Django authentication framework is extremely flexible, supporting authorization/authentication against anything you can write a backend for. See https://docs.djangoproject.com/en/dev/topics/auth/#writing-an-authentication-backend for documentation on this.

There are numerous examples of this already:

As for publishing auth, there are fewer options, but these include:

I strongly suggest using a provider package already built and tested over rolling your own. Implementing SSO is deceptively tricky.

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