Laravel language files on custom directory

app.php

// Create new Lang custom directory
// example in : app/Lang/
// Create lang directory for each lang in that directory
// example lang : id
// so i create : app/Lang/id
//
// DON'T forget change locale in config/app.php to 'id'
//
// then added new alias in aliases array in that file also
<?php

.......

/*
|--------------------------------------------------------------------------
| Application Locale Configuration
|--------------------------------------------------------------------------
|
| The application locale determines the default locale that will be used
| by the translation service provider. You are free to set this value
| to any of the locales which will be supported by the application.
|
*/

'locale' => 'id',

.......


'aliases' => [
  ...
  'Message' => App\Services\MessagesTranslator::class,
]


......

messages.php

// Create php file for place your messages
// example : app/Lang/id/messages.php
<?php

return [

  'awesome' => [
    'index' => 'I\'m Awesome.'
  ],
  'wonderfull' => [
    'success' => 'It\'s success, wonderfull.'
  ]
  
];

MessagesTranslationServiceProvider.php

// Create MessagesTranslationServiceProvider
// example in : app/Providers/MessagesTranslationServiceProvider.php
<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;

use App\Services\MessagesTranslator;

class MessagesTranslationServiceProvider extends ServiceProvider
{
  /**
   * Bootstrap the application services.
   *
   * @return void
   */
  public function boot()
  {
    $this->app->singleton('App\Services\MessagesTranslator', function () {
      return new MessagesTranslator;
    });
  }

  /**
   * Register the application services.
   *
   * @return void
   */
  public function register()
  {
    //
  }
}

MessagesTranslator.php

// Create MessagesTranslator class
// example in : app/Services/MessagesTranslator.php
<?php

namespace App\Services;

class MessagesTranslator
{
  /**
   * The translator custom location.
   *
   * @var string
   */
  protected $location = null;

  /**
   * The translator base key.
   *
   * @var string
   */
  protected $base;

  /**
   * Set the translator custom location.
   *
   * @param  string  $location
   * @return $this
   */
  public function setLocation($location)
  {
    $this->location = $location;

    return $this;
  }

  /**
   * Set the translator base key.
   *
   * @param  string  $base
   * @return $this
   */
  public function setBase($base)
  {
    $this->base = $base;

    return $this;
  }

  /**
   * Get the translation for a given key.
   *
   * @param  string  $key
   * @return string
   */
  public function shout($key)
  {
    $key = $this->base . '.' . $key;

    if (null !== $this->location) {
      app('translator')->addNamespace('custom', base_path() . '/' . $this->location);

      return app('translator')->get('custom::' . $key);
    }

    return trans($key);
  }

}

routes.php

// How to use
// in this example i show you how to use in routes.php
// you can use this anywhere you like

Route::get('trans', function(Message $message) {
  $message->setLocation('app/Lang');

  $message->setBase('messages.awesome');
  echo $message->shout('index');

  $message->setBase('messages.wonderfull');
  echo $message->shout('success');

});

READ THIS.

Steps :

1. MessagesTranslator.php
2. MessagesTranslationServiceProvider.php
3. app.php
4. messages.php
5. routes.php

Hope that works!

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