Since the original DevFactoryCH/minify seems to be inactive I've forked it and added Laravel 5.5 autodiscovery so it's much simpler to use.
Begin by installing this package through Composer.
composer require nickdekruijk/minify
Publish the config file:
php artisan vendor:publish --provider="NickDeKruijk\Minify\MinifyServiceProvider"
// app/views/hello.blade.php
<html>
<head>
...
{!! Minify::stylesheet('/css/main.css') !!}
// or by passing multiple files
{!! Minify::stylesheet(['/css/main.css', '/css/bootstrap.css']) !!}
// add custom attributes
{!! Minify::stylesheet(['/css/main.css', '/css/bootstrap.css'], ['foo' => 'bar']) !!}
// add full uri of the resource
{!! Minify::stylesheet(['/css/main.css', '/css/bootstrap.css'])->withFullUrl() !!}
{!! Minify::stylesheet(['//fonts.googleapis.com/css?family=Roboto']) !!}
// minify and combine all stylesheet files in given folder
{!! Minify::stylesheetDir('/css/') !!}
// add custom attributes to minify and combine all stylesheet files in given folder
{!! Minify::stylesheetDir('/css/', ['foo' => 'bar', 'defer' => true]) !!}
// minify and combine all stylesheet files in given folder with full uri
{!! Minify::stylesheetDir('/css/')->withFullUrl() !!}
</head>
...
</html>// app/views/hello.blade.php
<html>
<body>
...
</body>
{!! Minify::javascript('/js/jquery.js') !!}
// or by passing multiple files
{!! Minify::javascript(['/js/jquery.js', '/js/jquery-ui.js']) !!}
// Combine some javascripts from composer packages
{!! Minify::javascript(['/../vendor/components/jquery/jquery.js', '/../vendor/nickdekruijk/slider.js/slider.js', '/js/scripts.js']) !!}
// add custom attributes
{!! Minify::javascript(['/js/jquery.js', '/js/jquery-ui.js'], ['bar' => 'baz']) !!}
// add full uri of the resource
{!! Minify::javascript(['/js/jquery.js', '/js/jquery-ui.js'])->withFullUrl() !!}
{!! Minify::javascript(['//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js']) !!}
// minify and combine all javascript files in given folder
{!! Minify::javascriptDir('/js/') !!}
// add custom attributes to minify and combine all javascript files in given folder
{!! Minify::javascriptDir('/js/', ['bar' => 'baz', 'async' => true]) !!}
// minify and combine all javascript files in given folder with full uri
{!! Minify::javascriptDir('/js/')->withFullUrl() !!}
</html>See the config file at /config/minify.php