Tastypie is a Django-based framework for building a REST API. It is most effective as a direct wrapper on Django models, resulting in extremely concise code to expose models as REST resources (using the now-standard terminology where resource means a collection of similar objects). This broad overview can be diagramed something like the following.
But Tastypie is applicable even for more complex REST API designs, using non-Django data sources, or doing elaborate things to the Django models before sending them back to the client.
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