(refactor): Enhance error handling and route structure

Added url_prefix to auth blueprint
Implemented comprehensive exception handling with 500 errors
Improved code clarity and structure

routes/user_auth/auth.py

@@ -1,36 +1,48 @@
-# routes/auth.py
 from flask import Blueprint, request, jsonify, session
 from services.UserService.user import UserService
 
-auth_bp = Blueprint('auth', __name__)
+auth_bp = Blueprint("auth", __name__, url_prefix="/auth")
 user_service = UserService()
 
-@auth_bp.route('/signup', methods=['POST'])
+
+@auth_bp.route("/signup", methods=["POST"])
 def signup():
     data = request.get_json()
     try:
-        new_user = user_service.create_user(data['username'], data['password'])
-        return jsonify({"message": "User created successfully", "username": new_user.username}), 201
+        new_user = user_service.create_user(data["username"], data["password"])
+        return (
+            jsonify({"message": "User created successfully", "username": new_user.username}),
+            201,
+        )
     except ValueError as e:
         return jsonify({"message": str(e)}), 400
+    except Exception as e:
+        # Log the error
+        print(f"Signup error: {e}")
+        return jsonify({"message": "Internal server error"}), 500
 
-@auth_bp.route('/login', methods=['POST'])
+
+@auth_bp.route("/login", methods=["POST"])
 def login():
     data = request.get_json()
-    username = data.get('username')
-    password = data.get('password')
-    
+    username = data.get("username")
+    password = data.get("password")
+
     print(f"Login attempt: username={username}, password={password}")
-     
+
     try:
-        user = user_service.verify_user(data['username'], data['password'])
-        session['user_id'] = user.id
+        user = user_service.verify_user(username, password)
+        session["user_id"] = user.id
         return jsonify({"message": "Login successful", "user_id": user.id}), 200
     except ValueError as e:
         print(f"Login failed: {str(e)}")
         return jsonify({"error": str(e)}), 401
-    
-@auth_bp.route('/logout', methods=['POST'])
+    except Exception as e:
+        print(f"Login error: {e}")
+        return jsonify({"error": "Internal server error"}), 500
+
+
+@auth_bp.route("/logout", methods=["POST"])
 def logout():
     session.clear()
-    return jsonify({"message": "Logout successful"}), 200
+    return jsonify({"message": "Logout successful"}), 200