JSONRequestMiddleware

middleware.py

import json

from .utils import copy_body


class JSONRequest(dict):
    def __init__(self, request):
        try:
            data = json.loads(copy_body(request))
            self.is_valid = True
        except ValueError as e:
            data = {}
            self.is_valid = False
            self.exception = e
        super(JSONRequest, self).__init__(data)

    def __nonzero__(self):
        return self.is_valid


class JSONRequestMiddleware(object):
    def process_request(self, request):
        request.JSON = JSONRequest(request)

utils.py

import io


def copy_body(request):
    data = getattr(request, '_body', request.body)
    request._body = data
    request._stream = io.BytesIO(data)
    request._files = None
    return data