User guide/FAQ: Send JSON & URL-encoded requests to the App

Hey, I'm trying to fetch out the data with JSON I've spent way too much time on google and tried every single solution with no success.. when I send the request it raises an json.decoder.JSONDecodeError Exception. maybe can you help?

class TextOcrRes:
    def on_post(self, req, resp):
        """Handles Text POST requests"""
        json_data = json.loads(req.bounded_stream.read().decode("utf-8")) # json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
        print(json_data)

What I'm sending:

r = requests.post("http://x.xx.xx.xx/translate", data={'image_data':'message'}) I'm on python 3.6.8