Django Rest Framework无法解析多部分/表单数据 [英] Django Rest Framework unable to parse multipart/form data

问题描述

如DRF文档中所述

解决方案

ContentType 可能不是问题.错误响应表明， UserSerializer 期望一个 payload 或 data ，其中包括 username 和密码字段

因此，请尝试将这些字段添加到请求正文中，然后重试

更新

.

邮递员会为您芳香地添加适当的标题.因此，您不必明确提及它

As stated in DRF documentation http://www.django-rest-framework.org/api-guide/parsers/#multipartparser, in order to parse multipart/form-data, the MultiPart and form parser must be used. I have a supiscion this is a problem in the Django Rest Framework because I saw a solution on their github issue saying it work using APIView.

from django.contrib.auth.models import User
from rest_framework import viewsets
from api.serializers import UserSerializer,

from rest_framework.parsers import MultiPartParser, FormParser
from rest_framework.response import Response
from rest_framework import status

class UserViewSet(viewsets.ModelViewSet):
    """
    API endpoint that allows users to be viewed or edited.
    """
    queryset = User.objects.all()
    parser_classes = (MultiPartParser, FormParser)
    serializer_class = UserSerializer

Picture of me sending request to Postman with result:

Edit: Adding UserSerializer class

class UserSerializer(serializers.HyperlinkedModelSerializer):
    snapcapsules = SnapCapsuleSerializer(
        many=True,
        read_only=True,
        allow_null=True,
    )

    class Meta:
        model = User
        fields = ('snapcapsules', 'url', 'username', 'email', 'password', )
        write_only_fields = ('password',)

    def create(self, validated_data):
        user = User.objects.create(
            username=validated_data['username'],
            email=validated_data['email'],
        )

        user.set_password(validated_data['password'])
        user.save()

        return user

    def update(self, instance, validated_data):
        capsules_data = validated_data.pop('snapcapsules')

        for capsule in capsules_data:
             SnapCapsule.objects.create(user=instance, **capsule)

        return instance

解决方案

This is might not the issue with the ContentType. The error response says that,the UserSerializer excpect a payloadordata which include username and password field

So, Please try to add those fields to the request body and try again

UPDATE

The problem with the .

Postman will add appropriate Headers aromatically for you. So, you don't have to explicitly mention it

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