With reference to the below code, I am getting an error while parsing the parameters for a GET request in Flask Restful. from flask_restful import Resource, reqparse class View_Result(Resource): def get(self): parser = reqparse.RequestParser() parser.add_argument('aid', type=str) print('Here 1') data = parser.parse_args() print('Here 2') URL: http://127.0.0.1:8502/view_result?aid=1 Console: Here 1 127.0.0.1 - - [09/Nov/2022 01:52:43] "GET /view_result?aid=1 HTTP/1.1" 400 - Webpage: { "message": "Did not attempt to load JSON data because the request Content-Type was not 'application/json'." } Continue reading...