Meu service no laravel com Mercadopago para gerar QRCODE.

MercadoPago.php

<?php

namespace App\Services\GatewayPayments;

use App\Models\Company;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\GuzzleException;
use GuzzleHttp\Psr7\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Response;

class Mercadopago
{
    /**
     * This is function __construct instantiate connection with API of MercadoPago
     *
     * @param $client
     * @param $base_uri
     * @param $authorization
     * @param $tenantid
     *
     * @see $client create guzzle/http
     * @see $base_uri add url to connect to Mercadopago api
     * @see $authorization add an access 'token' to connect the Mercadopago API
     * @see $tenantid variable with tenant_id value from tenancy/laravel package
     */

    private string $base_uri = 'https://api.mercadopago.com/';
    private mixed $client;
    private mixed $authorization;
    private string $tenantid;

    public function __construct()
    {
        $this->tenantid = $tenantid = tenant()->id;
        $this->authorization = Company::query()->withWhereHas('tenant', function ($query) use ($tenantid) {
            $query->where('id', $tenantid);
        })->withWhereHas('paymentgateway')->first();

        $this->client = new \GuzzleHttp\Client([
            'base_uri' => $this->base_uri,
            'timeout' => 0,
            'headers' => [
                "Authorization" => $this->authorization->paymentgateway->access_token,
                'Content-Type' => 'application/json',
            ]
        ]);
        $this->client;
    }

    /**
     * This is function create QRCODE pix
     *
     * @param array $body
     * @return string
     *
     * @see $body receives the information to generate payment in Mercadopago.
     */
    public function createQrCodePix(array $body): string
    {
        $result = $this->client->postAsync('/v1/payments', ['json' => $body])->then(
            function ($response) {
                return $response->getBody()->getContents();
            }
        );
        $result = $result->wait();
        return $result;
    }

    /**
     * @param int|null $id
     * @return JsonResponse|string
     *
     * @catch \GuzzleHttp\Exception\ClientException for errors 400
     * @catch \GuzzleHttp\Exception\ConnectException for errors 500
     */
    public function notificationPayment(int|null $id)
    {
        try {
            $result = $this->client->getAsync('collections/notifications/' . $id)->then(
                function ($response) {
                    return $response->getBody()->getContents();
                }
            );
            $result = json_decode($result->wait());
            return $result->collection;
        } catch (\GuzzleHttp\Exception\ClientException $e) {
            $response = $e->getResponse();
            logs()->info($response);
            return $responseBodyAsString = $response->getStatusCode();
        } catch (\GuzzleHttp\Exception\ConnectException $e) {
            $response = $e->getCode();
            logs()->info($response);
            return $response;
        }
    }
}