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Master FastAPI from scratch
·
Module 6
The Dependency Injection System
1
FastAPI Dependency Injection vs. Django/DRF Patterns
Explain FastAPI's dependency injection (DI) system and contrast it with Django's middleware and DRF's permission/mixin patterns.
2
Function-Based Dependencies with `Depends()`
Create and use simple function-based dependencies with `Depends()`.
3
Callable Classes for Parameterized Dependencies
Build reusable, parameterized dependencies using callable classes.
4
Composing Complex Logic with Nested Dependencies
Chain nested dependencies to compose complex, reusable logic.
5
Managing Dependencies with `yield`
Create dependencies with `yield` for setup and teardown logic, such as managing database sessions.
6
Dependency Scopes
Apply dependencies at different scopes: globally (app), on a router, or for a specific path operation.
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