PHP SDK for maib MIA API

• maib MIA QR API docs: https://docs.maibmerchants.md/mia-qr-api
• maib Request to Pay (RTP) API docs: https://docs.maibmerchants.md/request-to-pay
• GitHub project https://github.com/alexminza/maib-mia-sdk-php
• Composer package https://packagist.org/packages/alexminza/maib-mia-sdk

Installation

To easily install or upgrade to the latest release, use composer:

composer require alexminza/maib-mia-sdk

To enable logging add the monolog package:

composer require monolog/monolog

Getting started

Import SDK:

require_once __DIR__ . '/vendor/autoload.php';

use Maib\MaibMia\MaibMiaClient;

Add project configuration:

$DEBUG = getenv('DEBUG');

$MAIB_MIA_BASE_URI = getenv('MAIB_MIA_BASE_URI');
$MAIB_MIA_CLIENT_ID = getenv('MAIB_MIA_CLIENT_ID');
$MAIB_MIA_CLIENT_SECRET = getenv('MAIB_MIA_CLIENT_SECRET');
$MAIB_MIA_SIGNATURE_KEY = getenv('MAIB_MIA_SIGNATURE_KEY');

Initialize client:

$options = [
    'base_uri' => $MAIB_MIA_BASE_URI,
    'timeout' => 15
];

if ($DEBUG) {
    $logName = 'maib_mia_guzzle';
    $logFileName = "$logName.log";

    $log = new \Monolog\Logger($logName);
    $log->pushHandler(new \Monolog\Handler\StreamHandler($logFileName, \Monolog\Logger::DEBUG));

    $stack = \GuzzleHttp\HandlerStack::create();
    $stack->push(\GuzzleHttp\Middleware::log($log, new \GuzzleHttp\MessageFormatter(\GuzzleHttp\MessageFormatter::DEBUG)));

    $options['handler'] = $stack;
}

$guzzleClient = new \GuzzleHttp\Client($options);
$maibMiaClient = new MaibMiaClient($guzzleClient);

SDK usage examples

Get Access Token with Client ID and Client Secret

$tokenResponse = $maibMiaClient->getToken($MAIB_MIA_CLIENT_ID, $MAIB_MIA_CLIENT_SECRET);
$accessToken = $tokenResponse['result']['accessToken'];

Create a dynamic order payment QR

$validityMinutes = 60;
$expiresAt = (new DateTime())->modify("+{$validityMinutes} minutes")->format('c');

$qrData = [
    'type' => 'Dynamic',
    'expiresAt' => $expiresAt,
    'amountType' => 'Fixed',
    'amount' => 50.00,
    'currency' => 'MDL',
    'description' => 'Order #123',
    'orderId' => '123',
    'callbackUrl' => 'https://example.com/callback',
    'redirectUrl' => 'https://example.com/success'
];

$qrCreateResponse = $maibMiaClient->qrCreate($qrData, $accessToken);

Validate callback signature

$callbackBody = '{
    "result": {
        "qrId": "c3108b2f-6c2e-43a2-bdea-123456789012",
        "extensionId": "3fe7f013-23a6-4d09-a4a4-123456789012",
        "qrStatus": "Paid",
        "payId": "eb361f48-bb39-45e2-950b-123456789012",
        "referenceId": "MIA0001234567",
        "orderId": "123",
        "amount": 50.00,
        "commission": 0.1,
        "currency": "MDL",
        "payerName": "TEST QR PAYMENT",
        "payerIban": "MD88AG000000011621810140",
        "executedAt": "2025-04-18T14:04:11.81145+00:00",
        "terminalId": null
    },
    "signature": "fHM+l4L1ycFWZDRTh/Vr8oybq1Q1xySdjyvmFQCmZ4s="
}';

$callbackData = json_decode($callbackBody, true);
$validationResult = MaibMiaClient::validateCallbackSignature($callbackData, $MAIB_MIA_SIGNATURE_KEY);

Perform a test QR payment

$qrId = $qrCreateResponse['result']['qrId'];
$testPayData = [
    'qrId' => $qrId,
    'amount' => 50.00,
    'iban' => 'MD88AG000000011621810140',
    'currency' => 'MDL',
    'payerName' => 'TEST QR PAYMENT'
];

$testPayResponse = $maibMiaClient->testPay($testPayData, $accessToken);

Get payment details

$payId = $testPayResponse['result']['payId'];
$paymentDetailsResponse = $maibMiaClient->paymentDetails($payId, $accessToken);

Refund payment

$refundData = [
    'reason' => 'Test refund reason',
    // 'amount' => 25.00, // Optional: for partial refund
    // 'callbackUrl' => 'https://example.com/refund' // Optional
];

$paymentRefundResponse = $maibMiaClient->paymentRefund($payId, $refundData, $accessToken);

Create a Request to Pay (RTP)

$validityMinutes = 60;
$expiresAt = (new DateTime())->modify("+{$validityMinutes} minutes")->format('c');

$rtpData = [
    'alias' => '3736xxxxxxx',
    'amount' => 150.00,
    'expiresAt' => $expiresAt,
    'currency' => 'MDL',
    'description' => 'Invoice #123',
    'orderId' => '123',
    'terminalId' => 'P011111',
    'callbackUrl' => 'https://example.com/callback',
    'redirectUrl' => 'https://example.com/success'
];

$rtpCreateResponse = $maibMiaClient->rtpCreate($rtpData, $accessToken);