Invite to Channel with MadelieProto (PHP (Laravel))

madelineproto_invito_to_channel.php

<?php
namespace App\Http\Controllers;

use Illuminate\Http\Request
use danog\MadelineProto\API;

class InviteParticipantsController extends Controller
{
    
    private $madelineProto;

   /* 
    We assume that we are with Laravel and we have received an array of participants in a var 'participants' in a POST request.
    Participants has: phone, first and second name.
   */
    public function __invoke(Request $request, int $channelId)

        $settings = [];
        $this->madelineProto = new API('session.madeline', $settings);
        $this->madelineProto->async(true);
      
        return $this->madelineProto->loop(function () use ($request, $channelId) {

            try{

                //get my own id
                $me = yield $this->madelineProto->getSelf();

                //obtain contacts known or anonymous
                $inputContacts = [];
                $participants = $request->get('participants');

                foreach ($participants as $participant){
                    $inputContacts[] = [
                        '_'           => 'inputPhoneContact',
                        'client_id'   => $me['id'],
                        'phone'       => $participant['phone'],
                        'first_name'  => $participant['first_name'],
                        'second_name' => $participant['second_name']
                    ];
                }

                //get contacts
                $contacts = yield $this->madelineProto->contacts->importContacts(['contacts' => $inputContacts]);

                //create array with contacts id
                $keyUsers = [];
                foreach ($contacts['users'] as $contact) {
                    $keyUsers[] = 'user#'.$contact['id'];
                }

                //config channel 
                $channelKey = 'channel#'.$channelId;
                
                //...and invite to channel ..¡welcome!
                $responseInvite = yield $this->madelineProto->channels->inviteToChannel(['channel' => $channelKey, 'users' => $keyUsers]);

                //this code belongs to an API. The response is coverted automatically to json string.
                //The answer is automatically converted into json format. We return information from the invitation response and imported users.
                return array_merge($responseInvite, $contacts['users']);

            }
            catch (\Exception $exception){
                return response()->json(['message'=> $exception->getMessage()], 500);
            }
        
    }
}