from flask import Flask

app = Flask(__name__)

app.config['SECRET_KEY'] = 'secret-key'

from app import app

from flaskext.mysql import MySQL

mysql = MySQL()

app.config['MYSQL_DATABASE_USER'] = 'root'

app.config['MYSQL_DATABASE_PASSWORD'] = 'root'

app.config['MYSQL_DATABASE_DB'] = 'roytuts'

app.config['MYSQL_DATABASE_HOST'] = 'localhost'

mysql.init_app(app)

You can go through the tutorial https://www.roytuts.com/jwt-authentication-using-python-flask/

import pymysql

from app import app

from db_conf import mysql

from flask import jsonify

from flask_jwt import JWT, jwt_required, current_identity

from werkzeug import generate_password_hash, check_password_hash

class User(object):

def __init__(self, id, username):

self.id = id

self.username = username

def __str__(self):

return "User(id='%s')" % self.id

def get_response():

return jsonify('You are an authenticate person to see this message')

def authenticate(username, password):

if username and password:

conn = None;

cursor = None;

try:

conn = mysql.connect()

cursor = conn.cursor(pymysql.cursors.DictCursor)

cursor.execute("SELECT id, username, password FROM user WHERE username=%s", username)

row = cursor.fetchone()

if row:

if check_password_hash(row['password'], password):

return User(row['id'], row['username'])

else:

return None

except Exception as e:

print(e)

finally:

cursor.close()

conn.close()

return None

def identity(payload):

if payload['identity']:

conn = None;

cursor = None;

try:

conn = mysql.connect()

cursor = conn.cursor(pymysql.cursors.DictCursor)

cursor.execute("SELECT id, username, password FROM user WHERE id=%s", payload['identity'])

row = cursor.fetchone()

if row:

return (row['id'], row['username'])

else:

return None

except Exception as e:

print(e)

finally:

cursor.close()

conn.close()

else:

return None

jwt = JWT(app, authenticate, identity)

if __name__ == "__main__":

app.run()