Fastapi: [QUESTION]

[hrtejada]

Is it possible to send a zip file as an attachment in a response? Looked through the starlette's response library but could not figure out a way to do this. My initial feeble attempt at making this work was using the Response object, specificying the media_type as 'application/zip' and passing the zipped I/O buffer in the content...normally in Flask I would do something like:

response_obj = Response(zipped, mimetype='application/zip', headers={
            'Content-Disposition': 'attachment;filename=api.zip'
            })
return response_obj

Where zipped was of type io.BytesIO(). Is something like this possible in FastAPI or using Starlette's responses?

[dmontagu]

It should be possible using Starlette's responses, but I'm not sure how high-level of an API there is for this. Either way, I think this would almost certainly be making direct (or nearly direct) use of starlette, rather than FastAPI, so you might have more luck asking there.

[euri10]

as I was commenting on https://github.com/encode/starlette/issues/609 it does indeed work with a FileResponse

@router.get("/zip")
def zip():
    content = b"<file content>" * 1000
    with open("/tmp/stuff", "wb") as tozip:
        tozip.write(content)
    with ZipFile('example.zip', 'w') as myzip:
        myzip.write("/tmp/stuff")
    response = FileResponse(path='example.zip', filename="example.zip")
    return response

[euri10]

works in swagger too for more swag

[hrtejada]

Worked like a charm! 👌

[tiangolo]

Thanks @euri10 and @dmontagu ! :clap: :bowing_man:

Thanks @hrtejada for reporting back and closing the issue.