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Django and Django REST Framework request flow, application boundaries, validation, permissions, migrations, and reliable API design.
Practice items tagged with Django Backend.
Distinguishes Django model saving, explicit model validation, form validation, and database constraints.
Explains how DRF turns an HTTP representation into request data and selects a response representation.
Traces serializer relation access back to queryset loading and verifies the fix with query evidence.
Traces a Django request through middleware, URL resolution, a view, application work, and response processing.
Explains ordered URL matching, included URL configurations, reverse lookup, and application namespaces.
Connects Django deployment interfaces with the real sync and async call chain.