Laravel Routing & Controllers (Beginner Friendly)

📌 What Are Routes in Laravel?

Routes are the entry points for your web application.
Every HTTP request is mapped to a route, which tells Laravel which code to execute.

Types of Routes:

• Web routes → for browser requests
  File: routes/web.php
• API routes → for APIs
  File: routes/api.php

🔀 Basic Route Example

Open routes/web.php and add:

Route::get('/', function () {
    return "Welcome to Laravel Routing!";
});

• get → HTTP GET request
• / → URL path
• function() → callback executed when route is visited

Visit http://127.0.0.1:8000/ → you’ll see the message 🎉

🚪 Route Parameters

Dynamic routes can accept parameters:

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

• {id} → route parameter
• $id → received in the closure

Example URL: http://127.0.0.1:8000/user/5 → Output: User ID: 5

🏷 Named Routes

Named routes help you generate URLs dynamically:

Route::get('/profile', function () {
    return "This is your profile";
})->name('profile');

Generate URL in Blade:

<a href="{{ route('profile') }}">Profile</a>

🔧 Route Groups & Middleware

Group routes for better organization:

Route::middleware(['auth'])->group(function () {
    Route::get('/dashboard', function () {
        return "Dashboard Page";
    });

    Route::get('/settings', function () {
        return "Settings Page";
    });
});

• Only authenticated users can access these routes
• auth middleware → provided by Laravel

🧩 Controllers in Laravel

Controllers handle business logic instead of putting everything in routes.
File location: app/Http/Controllers

Create a Controller

php artisan make:controller UserController

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class UserController extends Controller
{
    public function show($id)
    {
        return "User Profile ID: ".$id;
    }
}

Route to controller:

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

Visit: http://127.0.0.1:8000/user/10 → Output: User Profile ID: 10

⚡ Resource Controllers

Laravel makes CRUD easy with resource controllers:

php artisan make:controller PostController --resource

This automatically provides:

| Method  | Purpose                  |
| ------- | ------------------------ |
| index   | Show all posts           |
| create  | Show form to create post |
| store   | Save new post            |
| show    | Show single post         |
| edit    | Show form to edit post   |
| update  | Update post              |
| destroy | Delete post              |

Add resource route:

Route::resource('posts', PostController::class);

Now Laravel handles all 7 RESTful routes automatically.

📝 Bonus Tips

• Always keep routes clean and meaningful
• Use Route Model Binding for simplicity
• Separate API and Web routes for clarity
• Use middleware for authentication & authorization

📌 Key Takeaways

This week you learned:

• What routes are and types of routes
• How to use dynamic route parameters
• Named routes & generating URLs
• Using middleware
• How to create controllers and resource controllers