Bind a class to current authenticated object in a multi tenant app.

AppServiceProvider.php

<?php

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

    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        // Bind Account to the account of the current authenticated user
        $this->app->bind(Account::class, function(Application $app) {
            $user = $app['auth']->user();

            return $user->getAccount();
        });
    }
}

// In some controller
public function store(Account $account)
{
    // $account will be account of the current authenticated user.
}