Which of the following is the correct syntax to define a PUT route in FastAPI for updating an item with an ID?

easy📝 Syntax Q3 of 15

FastAPI - Database Integration

A@app.post('/items/{item_id}') async def update_item(item_id: int, item: Item): return item

B@app.get('/items/{item_id}') async def update_item(item_id: int, item: Item): return item

C@app.delete('/items/{item_id}') async def update_item(item_id: int, item: Item): return item

D@app.put('/items/{item_id}') async def update_item(item_id: int, item: Item): return item

Step-by-Step Solution

Solution:

Step 1: Identify HTTP method for update
PUT is the standard method to update existing resources.
Step 2: Check route and function signature
Route uses /items/{item_id} with @app.put and async function with parameters item_id and item.
Final Answer:
@app.put('/items/{item_id}') async def update_item(item_id: int, item: Item): return item -> Option D
Quick Check:
PUT route syntax correct = @app.put('/items/{item_id}') async def update_item(item_id: int, item: Item): return item [OK]

Quick Trick: Use @app.put with path param for updates [OK]

Common Mistakes:

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