Question

我正在Flask服务器上工作，在这里我们有一条使用库flask-jwt-extended来验证用户JWT令牌的途径。这是我们的路线：

from flask_jwt_extended import (
    JWTManager, jwt_required, create_access_token, create_refresh_token, get_jwt_identity, jwt_refresh_token_required
)

@app.route('/api/users/validate', methods=['POST'])
def validate_user():

    if not request.json:
        abort(400)

    data = request.get_json()

    if ('id_token' not in data):
        abort(400, "id_token must be a parameter in the JSON")

    decoded_token = auth.verify_id_token(data['id_token'])

    if ('uid' not in decoded_token):
        return json.dumps({'verified': False}), 200
    else:
        user = mongo.db.users.find_one({'_id': decoded_token['uid']})

        if user:
            access_token = create_access_token(identity=user['_id'])
            refresh_token = create_refresh_token(identity=user['_id'])
            return json.dumps({'verified': True, 'access_token': access_token, 'refresh_token': refresh_token}), 200
        else:
            return json.dumps({'verified': False, 'message': 'unable to locate user'}), 401

由于某种原因，每当我尝试对此路由进行发布请求时，函数TypeError: 'module' object is not callable都会收到create_access_token错误。这是堆栈跟踪：

127.0.0.1 - - [08/May/2019 12:24:17] "POST /api/users/validate HTTP/1.1" 500 -
Traceback (most recent call last):
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 2309, in __call__
    return self.wsgi_app(environ, start_response)
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 2295, in wsgi_app
    response = self.handle_exception(e)
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 1741, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/Users/user/Documents/server/src/controllers/auth_controller.py", line 44, in validate_user
    access_token = create_access_token(identity=user['_id')
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask_jwt_extended/utils.py", line 157, in create_access_token
    return jwt_manager._create_access_token(identity, fresh, expires_delta, user_claims)
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask_jwt_extended/jwt_manager.py", line 476, in _create_access_token
    json_encoder=config.json_encoder
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask_jwt_extended/tokens.py", line 77, in encode_access_token
    json_encoder=json_encoder)
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/flask_jwt_extended/tokens.py", line 31, in _encode_jwt
    json_encoder=json_encoder).decode('utf-8')
  File "/Users/user/Documents/server/venv/lib/python3.6/site-packages/jwt/api_jwt.py", line 61, in encode
    cls=json_encoder
  File "/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/lib/python3.6/json/__init__.py", line 238, in dumps
    **kw).encode(obj)
TypeError: 'module' object is not callable

我已经三重检查了flask-jwt-extended文档，实际上create_acess_token是一个函数，并且在打印create_acess_token时会打印它是一个函数。我查看了有关该主题的几乎所有StackOverflow帖子，但没有一个对您有帮助-大多数都谈论用户生成的类，但这是我从外部库中提取的功能。

这是flask-jwt-extended中create_access_token的定义：

def _create_access_token(self, identity, fresh=False, expires_delta=None, user_claims=None):
    if expires_delta is None:
        expires_delta = config.access_expires

    if user_claims is None:
        user_claims = self._user_claims_callback(identity)

        access_token = encode_access_token(
            identity=self._user_identity_callback(identity),
            secret=self._encode_key_callback(identity),
            algorithm=config.algorithm,
            expires_delta=expires_delta,
            fresh=fresh,
            user_claims=user_claims,
            csrf=config.csrf_protect,
            identity_claim_key=config.identity_claim_key,
            user_claims_key=config.user_claims_key,
            json_encoder=config.json_encoder
        )
        return access_token

如果有帮助，则代码在Python 3.6.5中，并且在虚拟环境中。任何帮助将不胜感激！

TypeError：“模块”对象不可调用Flask JWT

0 个答案: