Status code control in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to return a 201 status code from the FastAPI endpoint.

FastAPI

from fastapi import FastAPI, status

app = FastAPI()

@app.post("/items", status_code=[1])
def create_item():
    return {"message": "Item created"}

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

Astatus.HTTP_201_CREATED

Bstatus.HTTP_200_OK

Cstatus.HTTP_400_BAD_REQUEST

Dstatus.HTTP_404_NOT_FOUND

Attempts:

3 left

💡 Hint

Common Mistakes

Using 200 OK instead of 201 Created

Using a client error status code like 400

Not importing the status module

The status_code parameter sets the HTTP status code returned by the endpoint. status.HTTP_201_CREATED means the item was successfully created.

2fill in blank

medium

Complete the code to raise a 404 error when an item is not found.

FastAPI

from fastapi import FastAPI, HTTPException

app = FastAPI()

@app.get("/items/{item_id}")
def read_item(item_id: int):
    if item_id != 1:
        raise HTTPException(status_code=[1], detail="Item not found")
    return {"item_id": item_id}

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

A404

B200

C500

D403

Attempts:

3 left

💡 Hint

Common Mistakes

Using 200 OK instead of 404

Using 500 Internal Server Error incorrectly

Not raising HTTPException

Raising HTTPException with status code 404 indicates the requested item was not found.

3fill in blank

hard

Fix the error in the code to correctly return a 204 No Content response.

FastAPI

from fastapi import FastAPI, Response, status

app = FastAPI()

@app.delete("/items/{item_id}")
def delete_item(item_id: int):
    # Delete logic here
    return Response(status_code=[1])

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

A200

B204

C201

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Returning 200 OK with content instead of 204

Using 201 Created for deletion

Not using Response to set status code

Status code 204 means the request was successful but there is no content to return. Using Response with status_code=204 is correct.

4fill in blank

hard

Fill both blanks to return a JSON response with a 202 Accepted status code.

FastAPI

from fastapi import FastAPI, JSONResponse, status

app = FastAPI()

@app.post("/process")
def process_data():
    return JSONResponse(content=[1], status_code=[2])

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

A{"message": "Processing started"}

Bstatus.HTTP_202_ACCEPTED

C{"error": "Invalid data"}

Dstatus.HTTP_400_BAD_REQUEST

Attempts:

3 left

💡 Hint

Common Mistakes

Using error message content with 202 status

Using 400 Bad Request status code incorrectly

Not returning JSONResponse

The content should be a JSON object with a message, and the status_code should be 202 to indicate the request was accepted for processing.

5fill in blank

hard

Fill all three blanks to return a custom status code and message in a FastAPI endpoint.

FastAPI

from fastapi import FastAPI, Response

app = FastAPI()

@app.put("/update/{item_id}")
def update_item(item_id: int):
    # Update logic here
    return Response(content=[1], media_type=[2], status_code=[3])

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

A"Item updated successfully"

B"text/plain"

C202

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Using JSON content without setting media_type

Using wrong status code like 404

Not setting media_type for plain text

The content is a plain text message, media_type is set to text/plain, and the status code 202 means the update was accepted.