darvis / mkg-client

v1.3.2 2026-09-21 11:10 UTC

Requires

• php: ^8.2
• guzzlehttp/guzzle: ^7.2
• psr/log: ^1.1|^2.0|^3.0

Requires (Dev)

• larastan/larastan: ^3.0
• laravel/pint: ^1.0
• orchestra/testbench: ^9.0|^10.0|^11.0
• pestphp/pest: ^3.8|^4.0
• pestphp/pest-plugin-laravel: ^3.2|^4.0
• phpunit/phpunit: ^11.0|^12.0|^13.0

Suggests

• illuminate/support: Required when using the Laravel service provider integration.

MIT

• Arvid de Jong

• php
• laravel
• API-Client
• ERP
• rest-api
• darvis
• mkg
• laravel-boost
• erp-integration
• mkg-software
• vorh
• debi
• j-spring-security-check

Published on Packagist.org on 2026-09-21 11:10 UTC

README

A PHP client that reads data from the REST API of MKG Software, the Dutch ERP system. It handles the form login and the JSESSIONID session for you, and gives you one service class per MKG document instead of hand-built URLs. It works in plain PHP and registers itself in Laravel. An independent open-source package, not affiliated with MKG Software.

Features

• Login and session handled for you: the form login, the JSESSIONID cookie, the X-CustomerID header, and one automatic new login on a 401
• Derived URLs: set the host and the client builds the REST base and the login URL
• A service per document: arti, debi, cprs, vorh, vorr, vopa, adrs, rela and gebr, read only
• Typed rows: MKG's field metadata turns integers, amounts, booleans and dates into PHP values; quantities (aantal) and a few other types stay as MKG sent them
• Safe lookups: the finders quote and escape their value, and primary keys are URL-encoded
• Errors you can act on: a 403 is explained as a wrong base URL, and a redirect or a login page throws instead of looking like "no rows"
• Request logging: every call with its duration, and a warning for a slow call

Requirements

• PHP 8.2 or higher
• An MKG installation with the API set up, an MKG Exchange license and an API key
• Laravel 11, 12 or 13, only for the Laravel integration

Installation

composer require darvis/mkg-client

MKG_HOST=your-mkg-host
MKG_CUSTOMER=your-api-key
MKG_USERNAME=your-api-username
MKG_PASSWORD=your-api-password

The client builds the REST base and the login URL from the host. See Installation & configuration for what to ask MKG for, every setting, and a command that checks the connection.

Quick start

use Darvis\MkgClient\Exceptions\MkgHttpException;
use Darvis\MkgClient\Services\DebtorsService;
use Darvis\MkgClient\Services\OrdersService;
use GuzzleHttp\Exception\GuzzleException;

try {
    $debtor = app(DebtorsService::class)->findDebtorRowsByDebtorNumber(10001)[0] ?? null;

    $lines = app(OrdersService::class)->findOrderLineRowsByOrderNumber(
        'VK2606096',
        ['vorh_num', 'vorr_num', 'arti_code'],
    );
} catch (MkgHttpException $e) {
    // MKG answered with a 4xx, a redirect or something that is not JSON.
    report($e);
} catch (GuzzleException $e) {
    // A timeout, a connection error, a 5xx or a failed login.
    report($e);
}

The first call logs in and stores the session cookie; an empty array means MKG answered and found nothing. Pass a field list for orders: the default is every field in the package's metadata, 355 for order lines. MKG returns at most 1000 rows per call, and 100 without numRows.

Documentation

Full documentation: https://arviddejong.github.io/mkg-client/

Page
Installation & configuration	What to ask MKG for, the steps, every setting, a check that it works
Usage	A complete example, rows versus the raw response, filters, paging, exceptions, plain PHP
Service reference	Every service and the signature of every public method
Testing	Test your code with a Guzzle MockHandler, without an MKG installation
Verification	Check the URL and the credentials with curl
Troubleshooting	Every exception message and log line, with cause and fix
FAQ	Short answers about the package and the MKG API

Laravel Boost

The package ships Laravel Boost resources: a guideline and a mkg-client-development skill. Run php artisan boost:install, or php artisan boost:update --discover in a project that already uses Boost.

Testing

composer test      # Pest
composer lint      # Pint, check only (composer format fixes)
composer analyse   # Larastan, level 8

Changelog

See CHANGELOG.md.

Contributing

See CONTRIBUTING.md.

Security

Found a security problem? Report it privately, see SECURITY.md.

License

MIT, see LICENSE.