security.py
from user import User
from werkzeug.security import safe_str_cmp
users =[User(1,'abc','abc') ]
username_mapping = {u.username:u for u in users}
userid_mapping = {u.uid: u for u in users}
def authenticate(username,password):
user= username_mapping.get(username,None)
if user and safe_str_cmp(user.password , password):
return users
def identity(payload):
user_id=payload['identity']
return userid_mapping.get(user_id,None)
app.py
from flask import Flask,request
from flask_restful import Api,Resource
from flask_jwt import JWT, jwt_required
from security import authenticate,identity
app = Flask(__name__)
app.security_key='cool'
api = Api(app)
jwt = JWT(app,authenticate,identity) #create new endpoint /auth
/auth POST method of above JWT function shows 500 Internal server error and gives below error log
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/flask/app.py", line 2292, in wsgi_app
response = self.full_dispatch_request()
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1815, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/lib/python3.7/site-packages/flask_restful/__init__.py", line 273, in error_router
return original_handler(e)
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1718, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/lib/python3.7/site-packages/flask/_compat.py", line 35, in reraise
raise value
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1813, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/lib/python3.7/site-packages/flask/app.py", line 1799, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/home/iamabhi67/.local/lib/python3.7/site-packages/flask_jwt/__init__.py", line 125, in _default_auth_request_handler
access_token = _jwt.jwt_encode_callback(identity)
File "/home/iamabhi67/.local/lib/python3.7/site-packages/flask_jwt/__init__.py", line 62, in _default_jwt_encode_handler
payload = _jwt.jwt_payload_callback(identity)
File "/home/iamabhi67/.local/lib/python3.7/site-packages/flask_jwt/__init__.py", line 53, in _default_jwt_payload_handler
identity = getattr(identity, 'id') or identity['id']
AttributeError: 'list' object has no attribute 'id'
Your authenticate function returns users which is a list. It should return a user object (which has an id attribute). Check out the Quickstart.