Add auth middleware

middlewares/auth.py

 from functools import wraps
-from flask import g, request, redirect, url_for
+from flask import g, request
+from utils.jwt import decode_jwt
+from db.user import User
+from flask import jsonify
 
 
 def login_required(f):
     @wraps(f)
     def decorated_function(*args, **kwargs):
         auth = request.headers.get('Authorization')
-        print(auth)
+        token = auth.split(' ')[1]
+        try:
+            payload = decode_jwt(token)
+            user = User.find_by_id(payload['user_id'])
+            if user is None:
+                return jsonify({"Error": "Not authorized"}), 401
+            g.user = user
+        except:
+            return jsonify({"Error": "Not authorized"}), 401
         return f(*args, **kwargs)
     return decorated_function