Starlette FormData only provides names of files but not actual files-CodePudding

Trying to upload multiple files through a dynamic HTML form using FastAPI.

Server-side, the form comes through okay (as type starlette.datastructures.FormData) but the files are not coming through. all i can see are the filenames as strings.

As per the docs, if i try:

@app.post("/modules/function")
async def function(request: Request):
    form = await request.form()
    filename = form["upload_file"].filename
    contents = await form["upload_file"].read()

it fails with 'str' object has no attribute 'read' on line 4.

From the docs, form["upload_file"] is supposed to be type starlette.datastructures.UploadFile but i am getting it as type str .

Seemingly obvious solution is to declare files in path, but since form is dynamic, i can't tell how many files will be coming each time, so i need to be able to retrieve them from the FormData .

Any pointers?

CodePudding user response：

Found it. Simple error. include enctype="multipart/form-data" in html form tag. It doesn't automatically default to this when you include a file upload.