Basic django class based JSON view that can handle JSONP callbacks

views.py

from django.http import HttpResponse
from django.views import generic
import json

class JSONView(generic.View):

    callback_parameter = 'callback'

    def get_json_data(self, request, *args, **kwargs):
        """
        Implement this function to return the object to be serialized
        """
        raise NotImplementedError

    def get(self, request, *args, **kwargs):
        data = self.get_json_data(request, *args, **kwargs)
        callback = request.GET.get(self.callback_parameter)
        if callback:
            response = HttpResponse("%s(%s);" % (callback, json.dumps(data)),
                                    content_type='text/javascript')
        else:
            response = HttpResponse(json.dumps(data),
                                    content_type='application/json')
        return response