How to update composer.json from Laravel controller - php

Question

So I'm building a Laravel package and there is a special features that requires updating composer by adding a psr-4 namespace which points to a directory in Laravel base path.
I have tried this so far but doesn't work.
$loader = include(base_path('vendor/autoload.php'));
$loader->add('Classes\Weather', base_path('modules'));
Later:
$weather = new Classes\Weather\WeatherSite();

Answer 1

You might check this thread, which gives some solutions:
https://github.com/composer/composer/issues/1906#issuecomment-51632453

Answer 2

After several trials and going through Composer documentation, I was able to come up with this which works:
NB: The reason why I needed this solution is to enable me add a Psr4 path automatically from a Laravel package without manually adding a specific path required in the package manually in composer.json
Add this in the boot method of your package service provider , mine is DigitlimitModuleServiceProvider
use Illuminate\Support\ServiceProvider;
class DigitlimitModuleServiceProvider extends ServiceProvider
{
/**
* Bootstrap any application services.
*
* #return void
*/
public function boot()
{
$autoload = require base_path('vendor/autoload.php');
$autoload->addPsr4('Digitlimit\\Module\\', base_path('modules'));
$autoload->register();
if(!file_exists(base_path('modules'))){
\File::makeDirectory(base_path('modules'));
//works as long as there is permission
}
}
/**
* Register any application services.
*
* #return void
*/
public function register()
{
}
}