We also need development parameter to change base url

[peon501]

Base url should be:
production or development

BASE_URL = 'https://tripletex.no/v2';
or
BASE_URL = 'https://api.tripletex.io/v2';

[kentdahl]

Before I saw your PR #8 I did the simplest thing I thought could work; subclass TripletexClient, override method and instantiate that class before setting up $app.

If an option to change the endpoint is added, it should allow any end-point as an explicit setting.
This would allow proxying, internal network routings, testing setups etc.

---

<?php
namespace App\Gyre\Biz\Tripletex;
use \zaporylie\Tripletex\Client\TripletexClient;
class Client extends TripletexClient
{
    const APIT_TEST_BASE_URL = 'https://api.tripletex.io/v2';
    public static function getBaseUrl()
    {
        return config('services.tripletex.api_endpoint') ?? self::APIT_TEST_BASE_URL;
    }
}