Override JSONSerializer on django rest framework
Question:
I’m trying to apply this fix on my django rest framework
Adding root element to json response (django-rest-framework)
But I’m not sure how to override the json serializer on django rest framework, any help would be great.
The end result would be to have the root node name on the Json, because right now it’s just an array of objects without the root name i.e.
not it looks like this
[{“foo”:”bar”}]
I would need it to be like this
{“element”: [{“foo”:”bar”}]}
to get it to work with Ember JS
Thanks
Answers:
I think you have your answer there in the post you’ve given.
You need to define custom JSON renderer
from rest_framework.renderers import JSONRenderer
class EmberJSONRenderer(JSONRenderer):
def render(self, data, accepted_media_type=None, renderer_context=None):
data = {'element': data}
return super(EmberJSONRenderer, self).render(data, accepted_media_type, renderer_context)
and use it as default renderer either in settings or as an explicitly defined render for you view, like:
class MyView(APIView):
renderer_classes = (EmberJSONRenderer, )
# ...
def finalize_response(self, request, response, *args, **kwargs):
response_code = response.status_code
resp = Response(data=response.data, status=response_code)
resp.accepted_renderer=request.accepted_renderer
resp.accepted_media_type = request.accepted_media_type
resp.renderer_context = self.get_renderer_context()
return resp
def get_renderer_context(self):
"""
Returns a dict that is passed through to Renderer.render(),
as the `renderer_context` keyword argument.
"""
# Note: Additionally 'response' will also be added to the context,
# by the Response object.
return {
'view': self,
'args': getattr(self, 'args', ()),
'kwargs': getattr(self, 'kwargs', {}),
'request': getattr(self, 'request', None)
}
I’m trying to apply this fix on my django rest framework
Adding root element to json response (django-rest-framework)
But I’m not sure how to override the json serializer on django rest framework, any help would be great.
The end result would be to have the root node name on the Json, because right now it’s just an array of objects without the root name i.e.
not it looks like this
[{“foo”:”bar”}]
I would need it to be like this
{“element”: [{“foo”:”bar”}]}
to get it to work with Ember JS
Thanks
I think you have your answer there in the post you’ve given.
You need to define custom JSON renderer
from rest_framework.renderers import JSONRenderer
class EmberJSONRenderer(JSONRenderer):
def render(self, data, accepted_media_type=None, renderer_context=None):
data = {'element': data}
return super(EmberJSONRenderer, self).render(data, accepted_media_type, renderer_context)
and use it as default renderer either in settings or as an explicitly defined render for you view, like:
class MyView(APIView):
renderer_classes = (EmberJSONRenderer, )
# ...
def finalize_response(self, request, response, *args, **kwargs):
response_code = response.status_code
resp = Response(data=response.data, status=response_code)
resp.accepted_renderer=request.accepted_renderer
resp.accepted_media_type = request.accepted_media_type
resp.renderer_context = self.get_renderer_context()
return resp
def get_renderer_context(self):
"""
Returns a dict that is passed through to Renderer.render(),
as the `renderer_context` keyword argument.
"""
# Note: Additionally 'response' will also be added to the context,
# by the Response object.
return {
'view': self,
'args': getattr(self, 'args', ()),
'kwargs': getattr(self, 'kwargs', {}),
'request': getattr(self, 'request', None)
}