Added login functionality and login required

application/__init__.py

@@ -1,6 +1,7 @@
 from flask import Flask
 from flask_migrate import Migrate
 from flask_sqlalchemy import SQLAlchemy
+from flask_login import LoginManager
 
 # from authlib.integrations.flask_client import OAuth
 
@@ -16,6 +17,20 @@ db = SQLAlchemy(app)
 
 migrate = Migrate(app, db)
 
+# Login manager
+from application.auth.models import User
+
+login_manager = LoginManager()
+login_manager.init_app(app)  # type: ignore
+login_manager.login_view = "auth.login"  # type: ignore
+
+
+# Gets all the user data
+@login_manager.user_loader  # type: ignore
+def load_user(user_id):  # type: ignore
+    return User.query.get(int(user_id))  # type: ignore
+
+
 # Keycloak
 """
 oauth = OAuth(app=app)