FastAPI - Dependency Injection
Which FastAPI parameter is used to add a global dependency to the entire application?
Which FastAPI parameter is used to add a global dependency to the entire application?
easy🧠 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall how to add global dependencies
Global dependencies are added when creating the FastAPI app instance using the dependencies parameter.Step 2: Differentiate from other options
include_router() adds dependencies only to that router, Depends() is for per-endpoint, middleware is different concept.Final Answer:
dependencies in FastAPI() constructor -> Option DQuick Check:
Global dependency added via FastAPI(dependencies=...) [OK]
Quick Trick: Use dependencies param in FastAPI() to add global dependencies [OK]
Common Mistakes:
MISTAKES- Using Depends() inside endpoint instead of global
- Adding dependencies to include_router() for global effect
- Confusing middleware with dependencies
Master "Dependency Injection" in FastAPI
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