[Solved] Identify the error in this FastAPI dependency code:def get_config(name: str): return {'config_name': name} @app.get('/config') async def read_config(config: dict = Depends(get_config)): return config | FastAPI

FastAPI - Dependency Injection

Identify the error in this FastAPI dependency code:

def get_config(name: str):
    return {'config_name': name}

@app.get('/config')
async def read_config(config: dict = Depends(get_config)):
    return config

ADepends cannot be used with functions returning dict

BReturn type of get_config must be a class instance

CMissing async keyword in get_config

Dget_config requires a parameter but none is provided in Depends

Step-by-Step Solution

Solution:

Step 1: Check dependency function signature
get_config requires a parameter 'name', but Depends is called without arguments.
Step 2: Understand Depends parameter passing
Depends expects a callable without required parameters or a dependency that can be resolved automatically.
Final Answer:
get_config requires a parameter but none is provided in Depends -> Option D
Quick Check:
Depends needs callable without required parameters [OK]

Quick Trick: Dependencies must have no required parameters or use nested functions [OK]

Common Mistakes:

MISTAKES

Passing function with required parameters directly to Depends
Assuming Depends can auto-fill parameters
Ignoring function signature requirements

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More FastAPI Quizzes

Identify the error in this FastAPI dependency code:

Step 1: Check dependency function signature

Step 2: Understand Depends parameter passing

Final Answer:

Quick Check:

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