Uploading Multiple Files using Django rest framework without using Forms

Question

I'm trying to Post, from Postman, multiple files to my django app. I'm not using Forms, and there isn't a UI aspect to my app. Here is a my view class.

class FileUploader(APIView):
    '''
    Rest API for FileUploader
    '''
    permission_classes = (AllowAny,)
    parser_classes = (MultiPartParser, )

    @csrf_exempt
    def post(self, request):
        retval = Response(request.data, status=status.HTTP_201_CREATED)
        logger.info('New post with the following data: {}'.format(request.data))

With this it says, "TypeError: init() missing 3 required positional arguments: 'META', 'input_data', and 'upload_handlers'" If I use FormView, my Post has three keys, two represent files, the last is a string. During debugging my request has no field Data, and FILES is empty, and the POST doesn't have any information. Any pointers would be appreciated. I can upload more if that helps.

It's not a duplicate because he was able to upload multiple files and mine doesn't upload any files. I'm struggling to figure out how to find the files within the request and since they aren't there how to set up the views (and not the serialize) to receive multiple files.

enter image description here

Possible duplicate of Django REST: Uploading and serializing multiple images — JPG
– JPG, Commented Sep 18, 2018 at 15:34
moreover, you are not returning any response from your view class — JPG
– JPG, Commented Sep 18, 2018 at 15:37
I'm not concerned about making the Model from the request, so serialization isn't part of the problem, the problem is the physical POST request. Later in the View I return the response either 201 or a depending. What I'm struggling with is having both files contained within the request. — Nathan Smith
– Nathan Smith, Commented Sep 18, 2018 at 16:17

JPG · Accepted Answer · 2018-09-18 16:28:52Z

2

Write a view class as

from rest_framework.views import APIView
from rest_framework.response import Response


class FileUploader(APIView):
    '''
    Rest API for FileUploader
    '''

    permission_classes = (AllowAny,)

    def post(self, request, *args, **kwargs):
        files_list = request.FILES
        data = request.data
        return Response(data={"files": "{} files uploaded".format(len(files_list)),
                              "data": "{} data included".format(len(data))})

and send it using form-data in POSTMAN

answered Sep 18, 2018 at 16:28

JPG

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7 Comments

Nathan Smith Over a year ago

When I made these changes, data was a field, but had len 0 and FILES was also zero. So response was "{"files": "0 files uploaded", "data": "0 data included"}

JPG Over a year ago

How did you add the files and data? screenshot please

Nathan Smith Over a year ago

Just added the screenshot

Nathan Smith Over a year ago

And the header is Key = Content-Type Value = multipart/form-data

JPG Over a year ago

remove the header and try again

|

Keios Starqua · Accepted Answer · 2023-11-14 04:15:13Z

1

I have the same problems as you.

But this problem cause by my mistake when import package.

I should import MultiPartParser from rest_framework.parsers instead of from django.http.multipartparser

✅Right import

from rest_framework.parsers import MultiPartParser

❌Wrong import

from django.http.multipartparser import MultiPartParser

answered Nov 14, 2023 at 4:15

Keios Starqua

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Comments

anjaneyulubatta505 · Accepted Answer · 2018-09-18 16:21:12Z

0

change the above code to like below and include header 'Content-Type': 'multipart/form-data' in the request.

class FileUploader(APIView):
    '''
    Rest API for FileUploader
    '''
    permission_classes = (AllowAny,)
    parser_classes = (MultiPartParser, )

    @csrf_exempt
    def post(self, request, *args, **kwargs):
        print(request.data)
        return Response({"message": "success"})

answered Sep 18, 2018 at 16:21

anjaneyulubatta505

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1 Comment

Nathan Smith Over a year ago

When I made the change, it failed saying "AttributeError: 'NoneType' object has no attribute 'decode'"

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