AttributeError: 'Flask' object has no attribute 'before_first_request'.

[bezborodow]

It seems that flask_rbac is using deprecated API. before_first_request is no longer supported.

 Traceback (most recent call last):
   File "app/uwsgi.py", line 4, in <module>
     app = create_app()
           ^^^^^^^^^^^^
   File "/opt/www/gaas-bms/app/__init__.py", line 32, in create_app
     rbac.init_app(app)
   File "/opt/www/gaas-bms/venv/lib64/python3.11/site-packages/flask_rbac/__init__.py", line 179, in init_app
     app.before_first_request(self._setup_acl)
     ^^^^^^^^^^^^^^^^^^^^^^^^
 AttributeError: 'Flask' object has no attribute 'before_first_request'.

[marcopolomercader]

before_first_request is deprecated since Flask 2.3.0. To solve this you need to change it for before_request in the code.

I dont think this Flask-RBAC package will be updated.

Warining that in Flask 2.4.x will remove more deprecated code that is used in this Package.

[bezborodow]

To solve this you need to change it for before_request in the code.

That is incorrect. The recommendation is to move configuration code to the setup phase of the application.

See pallets/flask/issues/4605.

[bezborodow]

I don't think this Flask-RBAC package will be updated.

In this case, should we mark the entire package as deprecated?

[jt-bg]

I ran into this issue as well. Copying Hokanosekai's code into venv worked locally for me.