[Solved] Find the bug in this FastAPI file download code:from fastapi import FastAPI from fastapi.responses import FileResponse app = FastAPI() @app.get('/file') async def file():... | FastAPI

FastAPI - File Handling

Find the bug in this FastAPI file download code:

from fastapi import FastAPI
from fastapi.responses import FileResponse

app = FastAPI()

@app.get('/file')
async def file():
    return FileResponse('static/data.csv', filename='data.csv', content_type='text/csv')

AThe file path must be absolute, not relative.

BThe parameter 'content_type' should be 'media_type'.

CThe endpoint function cannot be async when returning FileResponse.

DThe filename parameter is missing.

Step-by-Step Solution

Solution:

Step 1: Check parameter names for FileResponse
The correct parameter for MIME type is 'media_type', not 'content_type'.
Step 2: Validate other parts
Relative paths are allowed, async functions can return FileResponse, and filename is provided.
Final Answer:
The parameter 'content_type' should be 'media_type'. -> Option B
Quick Check:
Use media_type, not content_type, in FileResponse [OK]

Quick Trick: FileResponse uses media_type, not content_type [OK]

Common Mistakes:

MISTAKES

Using content_type instead of media_type
Thinking async is disallowed for FileResponse
Believing file path must be absolute

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More FastAPI Quizzes

Find the bug in this FastAPI file download code:

Step 1: Check parameter names for FileResponse

Step 2: Validate other parts

Final Answer:

Quick Check:

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