Json在django rest api中使用POST解析错误

Question

我试图通过Django REST框架实现一个简单的GET/POST api

views.py

class cuser(APIView):
def post(self, request):
   stream  = BytesIO(request.DATA)
    json = JSONParser().parse(stream)
    return Response()

urls.py

from django.conf.urls import patterns, url
from app import views
urlpatterns = patterns('',

           url(r'^challenges/',views.getall.as_view() ),
           url(r'^cuser/' , views.cuser.as_view() ),
      )

我正在尝试POST一些json /api/cuser/(api是我项目中的命名空间urls.py),JSON

{
"username" : "abhishek",
"email" : "john@doe.com",
"password" : "secretpass"
}

我尝试了从Browseable API页面和httpie(类似于curl的python制作工具)

httpie command

http --json POST http://localhost:58601/api/cuser/ username=abhishek email=john@doe.com password=secretpass

但我得到JSON解析错误:

JSON parse error - Expecting property name enclosed in double quotes: line 1 column 2 (char 1)

Whole Debug message using --verbose --debug

    POST /api/cuser/ HTTP/1.1

Content-Length: 75

Accept-Encoding: gzip, deflate

Host: localhost:55392

Accept: application/json

User-Agent: HTTPie/0.8.0

Connection: keep-alive

Content-Type: application/json; charset=utf-8



{"username": "abhishek", "email": "john@doe.com", "password": "aaezaakmi1"}

HTTP/1.0 400 BAD REQUEST

Date: Sat, 24 Jan 2015 09:40:03 GMT

Server: WSGIServer/0.1 Python/2.7.9

Vary: Accept, Cookie

Content-Type: application/json

Allow: POST, OPTIONS



{"detail":"JSON parse error - Expecting property name enclosed in double quotes: line 1 column 2 (char 1)"}

Answer 1

您遇到的问题是您的请求已被解析,并且您正尝试再次解析它.

从"如何确定解析器"

视图的有效解析器集始终定义为类列表.当request.data被访问时,REST框架将检查传入请求的Content-Type头,并确定要使用到解析请求其内容解析器.

在您正在访问的代码中request.DATA,这是2.4.x等效的代码request.data.因此,只要您调用它,您的请求就会被解析,并且request.DATA实际上正在返回您希望解析的字典.

json = request.DATA

实际上你需要解析传入的JSON数据.你真的传递了一个Python字典json.loads,它似乎无法解析它,这就是你得到错误的原因.

Answer 2

我通过Google到达了该帖子，标题为““ detail”：“ JSON解析错误-期望属性名称用双引号引起来：”。结果，您在JSON中无法使用逗号结尾。因此，如果您遇到此错误，则可能需要更改这样的帖子：

{
    "username" : "abhishek",
    "email" : "john@doe.com",
    "password" : "secretpass",
}

对此：

{
    "username" : "abhishek",
    "email" : "john@doe.com",
    "password" : "secretpass"
}

请注意，JSON对象中最后一个属性后的逗号已删除。