speed-up-your-laravel-pages-by-caching-the-responses

1.php

<?php
    protected $middleware = [
        \App\Http\Middleware\CheckForMaintenanceMode::class,
        \Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,
        \App\Http\Middleware\TrimStrings::class,
        \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
        \App\Http\Middleware\TrustProxies::class,
        \Nckg\Minify\Middleware\MinifyResponse::class
    ];

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    protected $middlewareGroups = [
        'web' => [
            \App\Http\Middleware\EncryptCookies::class,
            \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
            \Illuminate\Session\Middleware\StartSession::class,
            // \Illuminate\Session\Middleware\AuthenticateSession::class,
            \Illuminate\View\Middleware\ShareErrorsFromSession::class,
            \App\Http\Middleware\VerifyCsrfToken::class,
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
        ],   
     ],

2.php

<?php

public function show($id)
{
    $post = Cache::remember("post-{$id}", function () use ($id) {
            return Post::find($id);
    }

    return view('post')->withPost($post);
}

3.php

<?php

protected $routeMiddleware = [
   ...
   'doNotCacheResponse' => \Spatie\ResponseCache\Middlewares\DoNotCacheResponse::class,
    'cacheResponse' => \Spatie\ResponseCache\Middlewares\CacheResponse::class,
];

4.php

<?php

// Out of cache
Route::get('/preview/{slug}', 'ArticleController');

/**
 * Cached routes
 */
Route::middleware('cacheResponse')->group(function () {
    Route::get('/{slug}', 'ArticleController');
});

5.php

<?php

namespace App\Observers;

use App\Post;
use Spatie\ResponseCache\Facades\ResponseCache;

class PostObserver
    public function saved(Post $post)
    {
        ResponseCache::forget(url($post->slug));
    }

       public function saved(Post $post)
    {
        ResponseCache::forget(url($post->slug));
    }
```

6.php

<?php

namespace App\Providers;

use App\Post;
use App\Observers\PostObserver;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    {
        Post::observe(PostObserver::class);
    }