Route middleware in Laravel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is route middleware in Laravel?

Route middleware is a way to filter HTTP requests entering your application. It runs code before or after a route is executed to check conditions like authentication or logging.

beginner

How do you apply middleware to a route in Laravel?

You add middleware to a route using the middleware() method in the route definition, for example: Route::get('/dashboard', fn() => 'Dashboard')->middleware('auth');

intermediate

What is the difference between global middleware and route middleware?

Global middleware runs on every HTTP request to your app. Route middleware runs only on specific routes you assign it to.

intermediate

How do you create a custom route middleware in Laravel?

Use php artisan make:middleware MiddlewareName to create it. Then add your logic in the handle method and register it in app/Http/Kernel.php under $routeMiddleware.

intermediate

What happens if a middleware returns a response before the route runs?

The middleware stops the request from reaching the route and sends the middleware's response back to the browser. This is useful for blocking unauthorized access.

Which method is used to assign middleware to a Laravel route?

A applyMiddleware()

B useMiddleware()

C middleware()

D setMiddleware()

The correct method to assign middleware to a route is middleware().

Where do you register custom route middleware in Laravel?

A routes/web.php

B app/Http/Kernel.php

C config/app.php

D app/Providers/RouteServiceProvider.php

Custom route middleware must be registered in the $routeMiddleware array inside app/Http/Kernel.php.

What is the main purpose of route middleware?

A To filter and control access to routes

B To define URL patterns

C To create database migrations

D To style HTML output

Route middleware filters requests and controls access to routes.

If middleware returns a response early, what happens next?

A The route still runs after middleware

B The request is redirected to another route

C The middleware is ignored

D The route is skipped and middleware response is sent

Middleware can stop the request and send its own response without running the route.

Which artisan command creates a new middleware class?

A php artisan make:middleware

B php artisan make:controller

C php artisan make:route

D php artisan make:service

Use php artisan make:middleware to create a new middleware class.

Explain how route middleware works in Laravel and how you apply it to a route.

Think about how you protect pages like a dashboard.

Describe the steps to create and register a custom route middleware in Laravel.

Focus on creation, coding, registration, and usage.