Path operations (GET, POST, PUT, DELETE) in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a GET path operation that returns a welcome message.

FastAPI

from fastapi import FastAPI
app = FastAPI()

@app.[1]("/")
async def read_root():
    return {"message": "Welcome to FastAPI!"}

Drag options to blanks, or click blank then click option'

Aget

Bpost

Cput

Ddelete

Attempts:

3 left

💡 Hint

Common Mistakes

Using POST instead of GET for retrieving data.

The @app.get decorator defines a GET path operation, which is used to retrieve data.

2fill in blank

medium

Complete the code to create a POST path operation that accepts an item name and returns it.

FastAPI

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

class Item(BaseModel):
    name: str

@app.[1]("/items/")
async def create_item(item: Item):
    return {"item_name": item.name}

Drag options to blanks, or click blank then click option'

Apost

Bget

Cput

Ddelete

Attempts:

3 left

💡 Hint

Common Mistakes

Using GET instead of POST when sending data to create.

The @app.post decorator defines a POST path operation, which is used to create new data.

3fill in blank

hard

Fix the error in the code to update an item using PUT method.

FastAPI

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

class Item(BaseModel):
    name: str

@app.[1]("/items/{item_id}")
async def update_item(item_id: int, item: Item):
    return {"item_id": item_id, "updated_name": item.name}

Drag options to blanks, or click blank then click option'

Apost

Bdelete

Cget

Dput

Attempts:

3 left

💡 Hint

Common Mistakes

Using POST or GET instead of PUT for updates.

The @app.put decorator is used for updating existing data, which fits the update operation.

4fill in blank

hard

Fill both blanks to create a DELETE path operation that deletes an item by its ID.

FastAPI

from fastapi import FastAPI

app = FastAPI()

@app.[1]("/items/[2]")
async def delete_item(item_id: int):
    return {"message": f"Item {item_id} deleted"}

Drag options to blanks, or click blank then click option'

Adelete

Bpost

C{item_id}

D/item_id

Attempts:

3 left

💡 Hint

Common Mistakes

Using POST or GET instead of DELETE.

Using incorrect path parameter syntax.

The @app.delete decorator defines a DELETE path operation. The path must include {item_id} to capture the item ID from the URL.

5fill in blank

hard

Fill all three blanks to create a PUT path operation that updates an item and returns its ID and new name.

FastAPI

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

class Item(BaseModel):
    name: str

@app.[1]("/items/[2]")
async def update_item([3]: int, item: Item):
    return {"item_id": [3], "new_name": item.name}

Drag options to blanks, or click blank then click option'

Aput

Bitem_id

C{item_id}

Dpost

Attempts:

3 left

💡 Hint

Common Mistakes

Mismatching path parameter names.

Using POST instead of PUT.

The @app.put decorator is for updating. The path parameter and function argument must be named item_id to match the URL.