File download responses in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the correct FastAPI class for creating the app.

FastAPI

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

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

AFileResponse

BRequest

CFastAPI

DResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Importing Response instead of FastAPI

Using FileResponse to create the app

The FastAPI class is used to create the app instance.

2fill in blank

medium

Complete the code to import the correct class for sending files in FastAPI.

FastAPI

from fastapi.responses import [1]

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

ARedirectResponse

BFileResponse

CHTMLResponse

DJSONResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Using JSONResponse for file downloads

Confusing FileResponse with RedirectResponse

FileResponse is the class used to send files as responses in FastAPI.

3fill in blank

hard

Fix the error in the route to correctly return a file download response.

FastAPI

@app.get('/download')
async def download_file():
    return [1]('example.txt')

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

AFileResponse

BResponse

CJSONResponse

DHTMLResponse

Attempts:

3 left

💡 Hint

Common Mistakes

Returning Response instead of FileResponse

Returning JSONResponse for file downloads

FileResponse must be used to return a file for download.

4fill in blank

hard

Fill both blanks to set a custom filename and media type for the file download.

FastAPI

@app.get('/download')
async def download_file():
    return FileResponse('example.txt', filename=[1], media_type=[2])

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

A'myfile.txt'

B'application/pdf'

C'text/plain'

D'download.txt'

Attempts:

3 left

💡 Hint

Common Mistakes

Using media_type as filename

Setting media_type to an incorrect MIME type

The filename parameter sets the download name, media_type sets the file type.

5fill in blank

hard

Fill all three blanks to add a custom header and use FileResponse correctly.

FastAPI

@app.get('/download')
async def download_file():
    headers = [1]
    return FileResponse('example.txt', filename=[2], headers=[3])

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

A{'X-Custom-Header': 'value'}

B'report.pdf'

Cheaders

D'example.txt'

Attempts:

3 left

💡 Hint

Common Mistakes

Passing headers as a string instead of dict

Not passing the headers argument to FileResponse

Headers must be a dictionary, filename a string, and headers passed as the headers argument.