How to fix the cross platform issue in the python

Question

I am using Python as backend server & AJAX + HTML for the frontend. when I call my API using postman, it's working fine but giving the CORS issue when I hit from the browser. After adding the flask's CORS library still, I am getting the following error.

CORS header 'Access-control-allow-origin' missing.
Please find the following method for your reference :

def post(self):
        parser = reqparse.RequestParser()
        parser.add_argument("age")
        parser.add_argument("occupation")
        args = parser.parse_args()
        result = request.get_json()
        name = result['name']       
        password = result['password']

        mycursor = mydb.cursor()

        query = ("select * from Farmer where Farmer_Username = '" + name + "' and Farmer_Password = '" + password + "';")
        print(query)
        mycursor.execute(query)  

        myresult = mycursor.fetchone()
        print(myresult)
        if myresult:
            return "Following user exists - '" + name, 200
        else:
            return "Following user doesn't exists - '" + name, 201

is there anything I need to add here to resolve the issue? Thanks in advance.

Regarding your front end part, AJAX & HTML, are you opening it in browser from file path or http? e.g /home/user/something or localhost? — d3corator, Apr 04 '19 at 12:13
Hi Muhammad, we used the HTML forms & calling API using the localhost link — sumit joshi, Apr 04 '19 at 12:15
Yes .. We added the following URL inside the 'action' property of the
tab. "http://127.0.0.1:5000/userIdValidation" — sumit joshi, Apr 04 '19 at 12:21
Following link might help you. Check it out https://stackoverflow.com/questions/22181384/javascript-no-access-control-allow-origin-header-is-present-on-the-requested — Hitesh Panjawani, Apr 04 '19 at 12:24

How to fix the cross platform issue in the python

0 Answers0