{ "detail": "JSON parse error - Expecting value: line 1 column 1 (char 0)" }

Question

I am using django-restframework, I use postman POST json data to my project but I got the error like tittle, I have set raw and application/json here is the code from postman.

POST /account/post/reply/ HTTP/1.1
Host: localhost:8000
Content-Type: application/json
Cache-Control: no-cache
Postman-Token: a0c7bd93-631e-4c7a-8106-87f018eaf7da

{
    "user": "michael",
    "userid": "1",
    "ihelpid": 6,
    "tittle": "6",
    "info": "6",
    "label": "3",
    "tel": "dxy970525",
    "picture1": null,
    "picture2": null
}

my code is really easy only like :

from rest_framework.parsers import JSONParser,ParseError

class ReplyViewSet(viewsets.ModelViewSet):
    """
    This viewset automatically provides `list` and `detail` actions.
    """

    pagination_class=PageNumberPagination
    queryset = Forum_reply.objects.all()
    serializer_class = ReplySerializer

    #filter
    filter_backends = (DjangoFilterBackend, )
    filter_fields = ['postID',]
    def create(self, request, *args, **kwargs):
        print(request.data)
        data = JSONParser().parse(request)
        return HttpResponse("ok")

After I use viewsets,this error occur,I have print it on shell but it is no problem

Solution 1

I actually had the same error, you need to use JSON.stringify(data) like the following in case you are using ajax :

datato= {
    "id" : 3,
    "title" : "level up",
    "author" : "jason rock"

}

$.ajax({
    method:'POST',
    url:"/home/api",
    data : JSON.stringify(datato),

})

@SeriForte 's answer pointed me in the right way

Solution 2

In my case, i was not sending a correct json in the data. So please check that.

Solution 3

I have solved this problem,I can access data now

I changed my older code

print(request.data)
data = JSONParser().parse(request)

this will get an error. If I code like below:

print(request)
data = JSONParser().parse(request)

Then I can access data in the dictionary.

So, I did not know why but the issue is fixed

Comments

[rdas]

Hey, can you debug by checking out what the variable request is? JSONParser should work if request is a JSON string. Seems like it's not so in this case.

[mariodev]

You should instead use parser_classes = (JSONParser,) (google it). This will automatically parse request data for you, so you can access it in request.data

[Michael Porter]

If i print request,I get <rest_framework.request.Request object at 0x7f03c01a1470>

[Michael Porter]

Thinks for telling me print request but not request.data..

[abduljalil]

please check your function where you are sending requests. I was facing same issue, i resolved it by changing this.http.delete(this.APIUrl + '/website', val) to this.http.delete(this.APIUrl + '/website',{body:val}).