Global middleware in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is global middleware in Laravel?

Global middleware runs on every HTTP request to your application. It applies to all routes automatically without needing to be assigned individually.

beginner

Where do you register global middleware in a Laravel app?

You register global middleware in the app/Http/Kernel.php file inside the $middleware array.

intermediate

How does global middleware differ from route middleware?

Global middleware runs on every request automatically. Route middleware runs only on routes or groups where you assign it explicitly.

beginner

Give an example of a common global middleware in Laravel.

The CheckForMaintenanceMode middleware is often global. It checks if the app is in maintenance mode and blocks requests accordingly.

intermediate

Why use global middleware instead of route middleware?

Use global middleware for tasks that must happen on every request, like security checks or trimming input. It ensures consistency without repeating assignments.

Where do you add global middleware in Laravel?

A In the $middleware array of app/Http/Kernel.php

B In the routes/web.php file

C In the config/app.php file

D In the middleware folder only

Global middleware is registered in the $middleware array inside app/Http/Kernel.php.

What happens if you add middleware to the $middleware array?

A It runs only on web routes

B It runs only on API routes

C It runs on every HTTP request

D It runs only when assigned to a route

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

Which middleware type requires manual assignment to routes?

A Global middleware

B Route middleware

C Kernel middleware

D Automatic middleware

Route middleware must be assigned to routes or route groups explicitly.

Why might you avoid putting heavy tasks in global middleware?

A Because it runs on every request and can slow down the app

B Because it only runs once

C Because it does not run on API routes

D Because it is not secure

Global middleware runs on every request, so heavy tasks can slow down all requests.

Which of these is a typical use for global middleware?

A Assigning roles to users

B Logging user activity only on admin pages

C Applying CSRF protection only on forms

D Checking maintenance mode

Checking maintenance mode is a common global middleware task because it applies to all requests.

Explain what global middleware is in Laravel and how it is registered.

Think about middleware that always runs no matter the route.

Describe the difference between global middleware and route middleware in Laravel.

Consider when each middleware type runs during a request.