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? ??? ?? ??? ???? 'form-data'? ???? FastAPI ??? ??? ????? ????? ??? ??????

'form-data'? ???? FastAPI ??? ??? ????? ????? ??? ??????

Dec 07, 2024 pm 08:30 PM

How to Efficiently Upload Files to a FastAPI Server Using `form-data`?

?? ??? ? SpooledTemporaryFile? ???? FastAPI? ?? ???

????/?? ???? ?? FastAPI? ???? ??? ?????? ???? ?? ????. ???? ??? python-multipart? ??? ?? ?????. form-data.

pip install python-multipart

??? FastAPI? ???? ??? ????? ??? ????.

from fastapi import File, UploadFile
from typing import List

@app.post("/upload")
def upload(file: UploadFile = File(...)):
    try:
        # Using file.file for synchronous operations (e.g., opening a file on disk)
        contents = file.file.read()
        with open(file.filename, 'wb') as f:
            f.write(contents)
    except Exception:
        return {"message": "An error occurred while uploading the file."}
    finally:
        file.file.close()

    return {"message": f"Successfully uploaded {file.filename}"}

? ??? ??? ???? ?? ?? ??? ? ?? ??? ?? ?? ????. . ?? ??? ??? ? ????:

@app.post("/upload")
def upload(file: UploadFile = File(...)):
    try:
        with open(file.filename, 'wb') as f:
            while contents := file.file.read(1024 * 1024):
                f.write(contents)
    except Exception:
        return {"message": "An error occurred while uploading the file."}
    finally:
        file.file.close()

    return {"message": f"Successfully uploaded {file.filename}"}

?? ???? ??? ?? ?? quitil.copyfileobj() ???? ??? ? ????:

from shutil import copyfileobj

@app.post("/upload")
def upload(file: UploadFile = File(...)):
    try:
        with open(file.filename, 'wb') as f:
            copyfileobj(file.file, f)
    except Exception:
        return {"message": "An error occurred while uploading the file."}
    finally:
        file.file.close()

    return {"message": f"Successfully uploaded {file.filename}"}

?? ?? ?? :

  • FastAPI? SpooledTemporaryFile? ?????. ???? ???? ???? ?? ???????. 1MB?? ? ??? ?? ???? ???? ?? ??? ?????.
  • async def? ?????? ???? ?? ? ??? ??? ?? ??? ?? ??? ?????. [https://stackoverflow.com/a/69868184/6616846](https://stackoverflow.com/a/69868184/6616846)
  • ?? ??? ?????? ???? UploadFile ?? ??? ??? ? ????. ????? ??? ?????.
  • HTML ?? ??? ??? ??? ??? ?????. ?????.

? ??? 'form-data'? ???? FastAPI ??? ??? ????? ????? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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