PredictsResource

class PredictsResource(object):
    def on_get(self, req, resp):
        """Handles GET requests"""
        resp.status = falcon.HTTP_200  # This is the default status
        resp.body = ('\nThis is the PREDICT endpoint. \n'
        			 'Both requests and responses are served in JSON. \n'
        		     '\n'
        		     'INPUT:  Flower Lengths (in cm) \n'
                     '   "sepal_length":[num]        \n'
                     '   "sepal_width": [num]        \n'
                     '   "petal_length":[num]        \n'
                     '   "petal_width": [num]      \n\n'
        		     'OUTPUT: Prediction (Species)   \n'
                     '   "Species": [string]       \n\n')

    def on_post(self, req, resp): 
        """Handles POST requests"""
        try:
            raw_json = req.stream.read()
        except Exception as ex:
            raise falcon.HTTPError(falcon.HTTP_400,
                'Error',
                ex.message)
 
        try:
            result_json = json.loads(raw_json.decode(), encoding='utf-8')
            # For Python 2.x, replace with
            # result_json = json.loads(raw_json, encoding='utf-8')
        except ValueError:
            raise falcon.HTTPError(falcon.HTTP_400,
                'Malformed JSON',
                'Could not decode the request body. The '
                'JSON was incorrect.')
 
        resp.status = falcon.HTTP_200
        resp.body = json.dumps(invoke_predict(raw_json))  
        # For Python 2.x, replace with
        # resp.body = json.dumps(invoke_predict(raw_json), encoding='utf-8') encoding not necessary in python3