Update app.py

app.py

@@ -33,17 +33,15 @@ def register():
 
     # Check if the username already exists
     if User.query.filter_by(username=username).first():
-        return "Username already exists. Please choose another."
+        return "Username already exists. Please choose another.", 400
 
-    # Hash the password
+    # Hash the password and save the user to the database
     hashed_password = generate_password_hash(password)
-
-    # Save the user to the database
     new_user = User(username=username, password=hashed_password)
     db.session.add(new_user)
     db.session.commit()
 
-    return "User registered successfully!"
+    return "User registered successfully!", 201
 
 # User login route
 @app.route('/login', methods=['POST'])