I have web controller working with external system.

@http.route('/path/', auth='none', type="json", methods=['POST'], csrf=False, cors='*')
def index(self, **kw):
    data = json.loads(request.httprequest.data) # I need raw data
    return data

If I have type="json" I can get raw data from request without "parameters" via request.httprequest.data, but when I try to send response, I get

{
  "jsonrpc": "2.0",
  "id": null,
  "result": {
    "test": "data"
  }
}

But I need to receive just

{  
  "test": "data",
}

If I change type to "http" I can create correct response like this

headers = {"Content-Type": "application/json"}
return Response(json.dumps(body), headers=headers)

But I have an error when I try to do a request

Function declared as capable of handling request of type 'http' but called with a request of type 'json'
It's external system, I can't change it. How to create a correct response without "result"?