Laravel Routing and Middleware

Master Laravel routing and middleware. Learn route parameters, route groups, middleware, and how to protect your routes. Essential Laravel concepts.

Michael Chen

December 19, 2025

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Routing and middleware are core Laravel concepts. They control how requests flow through your application and add security layers.

Laravel Routing

Routes define URLs and what happens when users visit them. Laravel's routing is flexible - you can use closures or controllers.

Route Parameters

Routes can accept parameters. These let you create dynamic URLs. Learn how to define them, make them optional, and validate them.

Route Groups

Route groups let you apply settings to multiple routes at once. Use them for middleware, prefixes, namespaces, and more. They keep your code DRY.

Middleware

Middleware runs before or after requests. Use it for authentication, logging, CORS, and more. Laravel includes many built-in middleware.

Creating Custom Middleware

Sometimes you need custom middleware. Learn how to create it, register it, and apply it to routes. This gives you control over request processing.

Route Model Binding

Route model binding automatically injects model instances. Instead of manually finding models, Laravel does it for you. It's elegant and saves code.

#Laravel#Routing#Middleware#Security

Common Questions & Answers

How do I define routes with parameters in Laravel?

Use curly braces in route definition: Route::get("/user/{id}", ...). Access parameter in closure/controller. Make optional with ?: Route::get("/user/{id?}", ...). Use route model binding to automatically inject models.

php

Run Explain

Route::get('/user/{id}', function ($id) {
    return "User ID: " . $id;
});

Route::get('/posts/{id?}', function ($id = null) {
    return $id ? "Post ID: " . $id : "All Posts";
});

Route::get('/user/{userId}/post/{postId}', function ($userId, $postId) {
    return "User: $userId, Post: $postId";
});

Route::get('/user/{user}', function (User $user) {
    return $user;
});

Route::get('/user/{user}', [UserController::class, 'show']);