Single action controllers in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a single action controller in Laravel?

A single action controller is a controller class that contains only one method called __invoke. It handles one specific action, making the code simple and focused.

beginner

How do you define a single action controller in Laravel?

You create a controller class with a public __invoke() method. Laravel will call this method when the controller is used in routes.

beginner

Why use single action controllers instead of regular controllers?

They keep code clean and simple by focusing on one task. This improves readability and makes maintenance easier.

beginner

How do you route to a single action controller in Laravel?

In routes/web.php, you can use Route::get('/path', ControllerName::class); Laravel automatically calls the __invoke method.

intermediate

Can single action controllers use middleware in Laravel?

Yes, you can assign middleware in the controller's constructor or directly in the route definition.

What method must a single action controller have in Laravel?

A __invoke

B handle

C index

D execute

Single action controllers use the __invoke method to handle the request.

How do you call a single action controller in a route?

A Route::get('/path', 'ControllerName@index');

B Route::get('/path', ControllerName::class);

C Route::get('/path', 'ControllerName@handle');

D Route::get('/path', 'ControllerName@__invoke');

Passing the controller class name calls the __invoke method automatically.

What is a main benefit of single action controllers?

A They handle multiple actions in one class

B They automatically generate views

C They simplify code by focusing on one action

D They require no routing

Single action controllers keep code simple by focusing on one task.

Can single action controllers have middleware?

A No, middleware only works on multi-method controllers

B Middleware is not supported in Laravel

C Only if middleware is global

D Yes, middleware can be added in constructor or routes

Middleware can be assigned in the controller constructor or route definition.

Which of these is a correct single action controller class example?

A class MyController { public function __invoke() { /* code */ } }

B class MyController { public function index() { /* code */ } }

C class MyController { public function handle() { /* code */ } }

D class MyController { public function run() { /* code */ } }

The __invoke method is required for single action controllers.

Explain what a single action controller is and how you use it in Laravel routing.

Think about how Laravel calls the __invoke method automatically.

Describe the benefits of using single action controllers compared to regular controllers.

Consider how focusing on one job helps keep things clear.