Multiple response types in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import FastAPI and create an app instance.

FastAPI

from fastapi import [1]
app = [1]()

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

ADepends

BRequest

CResponse

DFastAPI

Attempts:

3 left

💡 Hint

Common Mistakes

Importing Request or Response instead of FastAPI.

Forgetting to call FastAPI() to create the app.

The FastAPI class is imported and used to create the app instance.

2fill in blank

medium

Complete the code to define a GET endpoint that returns JSON.

FastAPI

@app.get("/items/{item_id}")
async def read_item(item_id: int):
    return [1]

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

A"Hello"

B{"item_id": item_id}

Citem_id

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Returning a plain string instead of a dict.

Returning just the integer item_id.

The endpoint returns a dictionary which FastAPI converts to JSON.

3fill in blank

hard

Fix the error in the response type by completing the code to return a plain text response.

FastAPI

from fastapi.responses import [1]

@app.get("/plaintext")
async def get_plaintext():
    return [1]("Hello World")

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

APlainTextResponse

BJSONResponse

CHTMLResponse

DRedirectResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Using JSONResponse which returns JSON.

Using HTMLResponse which returns HTML content.

Use PlainTextResponse to return plain text content.

4fill in blank

hard

Fill both blanks to return an HTML response with a custom status code.

FastAPI

from fastapi.responses import [1]

@app.get("/custom_html")
async def custom_html():
    content = "<h1>Welcome</h1>"
    return [1](content=content, status_code=[2])

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

AHTMLResponse

BPlainTextResponse

C200

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Using PlainTextResponse for HTML content.

Using status code 200 when a custom code is needed.

Use HTMLResponse to return HTML content and set status_code=404 for custom status.

5fill in blank

hard

Fill all three blanks to return a JSON response with a custom header and status code.

FastAPI

from fastapi.responses import [1]

@app.get("/custom_json")
async def custom_json():
    data = {"message": "Success"}
    headers = [2]
    return [1](content=data, status_code=[3], headers=headers)

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

AJSONResponse

B{"X-Custom-Header": "Value"}

C201

DPlainTextResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Using PlainTextResponse instead of JSONResponse.

Passing headers as a string instead of a dictionary.

Use JSONResponse to return JSON data, add custom headers as a dict, and set status code 201 for Created.