I want to know how to download more than 2 files from FastAPI server.

[jbc0708]

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Example Code

No Code..
Currently, it is sent to the client as a compressed file(ZipFile).
If it is an image, it will reply with a FileResponse

Description

If a client requests multiple images with the keyword “computer”,
is it possible to send multiple files at once without a compressed file?

Operating System

macOS

Operating System Details

No response

FastAPI Version

0.68

Python Version

3.10

Additional Context

No response

[JarroVGIT]

No, afaik you cannot return multiple files natively without client logic. For example, you could concatenate files together with an agreed upon Seperator and send it as one “file”, but you would have to unconcatenate it on the client side.

[jbc0708]

Hi Jarro~ Thanks to answer for me.. So.. mean what you say is Zip file is best choice.. isn't it..?
If so, can't I send one file and json at the same time?

[JarroVGIT]

No, the body of your response is either a json body or bytes. In your case, a zip file would be the best response. You could do some hacky solution though, by setting some custom headers containing information you wanted to relay via a json body? Anyway, this is not really a FastAPI issue i guess.

[odiseo0]

You need client side logic, StreamingResponse maybe can help you, when I return documents like .csv I usually do

  return StreamingResponse(
      buffer, # BytesIO Object to return
      media_type="text/csv",
      headers={
          "Content-Disposition": "attachment;filename=contacts.csv", # ref: https://developer.mozilla.org/es/docs/Web/HTTP/Headers/Content-Disposition
          "Content-Type": "text/csv"
      }
  )

[jbc0708]

Thank you answer..

[jbc0708]

You need client side logic, StreamingResponse maybe can help you, when I return documents like .csv I usually do

  return StreamingResponse(
      buffer, # BytesIO Object to return
      media_type="text/csv",
      headers={
          "Content-Disposition": "attachment;filename=contacts.csv", # ref: https://developer.mozilla.org/es/docs/Web/HTTP/Headers/Content-Disposition
          "Content-Type": "text/csv"
      }
  )

Thank you answer~