Django Rest框架字段为必填错误

Question

我的models.py：

from django.db import models

# Create your models here.
class Email(models.Model):
    id = models.AutoField(primary_key=True)
    sender = models.CharField(max_length=100)
    receiver = models.CharField(max_length=100)
    message = models.TextField()

我的serializer.py：

from django.forms import widgets
from rest_framework import serializers
from email_app.models import Email

class EmailSerializer(serializers.ModelSerializer):
    class Meta:
        model = Email
        fields = ('id', 'sender', 'receiver', 'message')

我的views.py：

@api_view(['POST'])
def email_list(request):
    serializer = EmailSerializer(data=request.DATA)
    if serializer.is_valid():
        serializer.save()
        return Response(serializer.data, status=status.HTTP_201_CREATED)
    return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

当我发送这样的POST请求时：

 curl -X POST http://127.0.0.1:8000/email/new/ -d "{'sender': 'a@b', 'receiver':'c@d', 'message':''yolo'}"

我收到此错误：

{"message": ["This field is required."], "sender": ["This field is required."], "receiver": ["This field is required."]}

我究竟做错了什么？

Answer 1

DRF需要Content-Type标头才能为您的数据找到正确的解析器。

尝试添加-H "Content-Type:application/json"到您的curl-call。

另请注意，单引号（'）使用时不是有效的JSON。JSON仅允许双引号（"）。

因此，正确的呼呼电话应该是

curl -X POST http://127.0.0.1:8000/email/new/ -H "Content-Type: application/json" -d '{"sender": "a@b", "receiver":"c@d", "message":"yolo"}'