[Solved] Given this FastAPI endpoint with role check dependency: async def get_admin_data(admin: None = Depends(admin_required)): return {"data":... | FastAPI

FastAPI - Authentication and Security

Given this FastAPI endpoint with role check dependency:

async def get_admin_data(admin: None = Depends(admin_required)):
    return {"data": "secret"}

What happens if a user with role 'user' calls this endpoint?

AThe endpoint raises HTTP 403 Forbidden error

BThe endpoint returns {"data": "secret"}

CThe endpoint raises HTTP 401 Unauthorized error

DThe endpoint returns an empty response

Step-by-Step Solution

Solution:

Step 1: Understand admin_required behavior
admin_required raises HTTP 403 if user role is not 'admin'.
Step 2: Apply to user role 'user'
User role 'user' is not 'admin', so HTTP 403 is raised before endpoint runs.
Final Answer:
The endpoint raises HTTP 403 Forbidden error -> Option A
Quick Check:
Non-admin user triggers 403 error [OK]

Quick Trick: Non-admin roles cause 403 error before endpoint runs [OK]

Common Mistakes:

MISTAKES

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