Question

You want to create a dependency that extracts a query parameter token and returns it. Which of these is the best way to write the dependency function and use it with Depends?

Accepted Answer

def get_token(token: str = Query(...)): return token
@app.get('/secure/')
def secure_route(token: str = Depends(get_token)):
    return {"token": token}

Answer

def get_token(token: str): return token
@app.get('/secure/')
def secure_route(token: str = Depends(get_token)):
    return {"token": token}

Answer

def get_token(): return 'fixed_token'
@app.get('/secure/')
def secure_route(token: str = Depends(get_token)):
    return {"token": token}

Answer

def get_token(): return None
@app.get('/secure/')
def secure_route(token: str = Depends(get_token)):
    return {"token": token}

You want to create a dependency that extracts a query parameter token and returns it. Which of these is the best way to write the dependency function and use it with Depends?

Step 1: Understand how to get query parameters in dependencies

Step 2: Check which option uses Query correctly

Final Answer:

Quick Check:

Want More Practice?