flask-security-too integrations with flask-smorest

[pejmanS21]

Hello, I'm trying to integrate flask-smorest with flask-security-too for a password-based authentication app and after usingauth_required decorator (or login_required) for a blueprint like following code, I've get these errors. can someone please help me with this?

flask-smorest
flask-security-too

Code

• auth/views.py

from flask_security import auth_required, login_required, current_user
from flask_smorest import Blueprint, abort
from .usering.models.user import User
from .usering.models.role import Role
from .usering.models.user_role import UserRole

blp = Blueprint('auth', __name__, description='Endpoints for authentication')


@blp.route('/auth')
@auth_required()
class loginUser(MethodView):

    @blp.doc(description='Use this route to login as admin or user.')
    def get(self):
        pass

    @blp.doc(description='Use this route to login as admin or user.')
    def post(self):
        print(current_user.is_anonymous)
        return {"status": "OK"}

• usering/models/user.py

class User(BaseDBModel, UserMixin):
    """The user table in the database."""

    __tablename__ = "user_account"
    id = Column(Integer(), primary_key=True)
    email = Column(String(255), unique=True)
    username = Column(String(255), unique=True, nullable=True)
    password = Column(String(255), nullable=False)
    fs_uniquifier = Column(String(255), unique=True, nullable=False)
    active = Column(Boolean())
    roles = relationship(
        "Role", secondary="user_role", backref=backref("users", lazy="dynamic")
    )

Swagger

Error

typeerror: The view function did not return a valid response. The return type must be a string, dict, list, tuple with headers or status, Response instance, or WSGI callable, but it was a loginUser.

@lafrech

[jwag956]

You can't decorate a class since that will cause the class itself to be returned (which is what the error is saying).
I think you are using Flask.views - in that case something like this should work:

` class MyView(MethodView):
decorators = [auth_required("token", "session")]

    def get(self):
        return render_template_string("Hi view")`

[pejmanS21]

Yes that's work correctly, I also use blueprint with it.

view = loginUser.as_view("login_users")
view = auth_required(view)
blp.add_url_rule('/auth', view_func=view)

Thanks for your help @jwag956