Registering middleware in Laravel - Cheat Sheet & Quick Revision

Recall & Review

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What is middleware in Laravel?

Middleware is a way to filter HTTP requests entering your application. It acts like a gatekeeper that can inspect, modify, or reject requests before they reach your routes or controllers.

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How do you register a global middleware in Laravel?

You add the middleware class to the $middleware array inside the app/Http/Kernel.php file. This makes it run on every HTTP request automatically.

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Where do you register route middleware in Laravel?

Route middleware are registered in the $routeMiddleware array inside app/Http/Kernel.php. You give each middleware a key name to use in routes or controllers.

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How do you apply middleware to a specific route in Laravel?

You use the middleware method on the route definition, like Route::get('/profile', 'ProfileController@index')->middleware('auth'); This runs the 'auth' middleware only for that route.

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What is the difference between global and route middleware in Laravel?

Global middleware runs on every HTTP request automatically. Route middleware runs only on routes or groups where you explicitly apply them.

Where do you register global middleware in Laravel?

A In the $routeMiddleware array inside app/Http/Kernel.php

B In the config/app.php file

C In the routes/web.php file

D In the $middleware array inside app/Http/Kernel.php

Global middleware are registered in the $middleware array inside app/Http/Kernel.php to run on every request.

How do you assign a middleware to a specific route?

A Write it inside the controller constructor

B Use the middleware() method on the route definition

C Add it to the $routeMiddleware array only

D Add it to the $middleware array

You assign middleware to a route by calling middleware('name') on the route definition.

What is the purpose of the $routeMiddleware array?

A To list all middleware classes in the project

B To register middleware that runs on every request

C To register middleware that can be applied to specific routes by name

D To configure middleware priority

The $routeMiddleware array maps short names to middleware classes for use on specific routes.

If you want middleware to run on every HTTP request, where should you register it?

A In the $middleware array

B In the $routeMiddleware array

C In the routes file

D In the controller

Middleware in the $middleware array runs globally on every HTTP request.

Which file is the main place to register middleware in Laravel?

A app/Http/Kernel.php

B routes/web.php

C config/middleware.php

D app/Providers/AppServiceProvider.php

Middleware registration happens mainly in app/Http/Kernel.php.

Explain how to register and apply middleware to a route in Laravel.

Think about the $routeMiddleware array and route methods.

Describe the difference between global and route middleware in Laravel.

Consider where each type is registered and when it runs.