deutschepost/sdk-api-internetmarke

Deutsche Post Internetmarke REST API SDK

1.0.0 2026-03-11 12:18 UTC

Requires

• php: ^8.3.0
• ext-json: *
• netresearch/jsonmapper: ^5.0.0
• php-http/client-common: ^2.7.0
• php-http/discovery: ^1.17.0
• php-http/httplug: ^2.2.0
• php-http/logger-plugin: ^1.5.0
• php-http/message: ^1.16.0
• psr/clock: ^1.0
• psr/http-client: ^1.0.1
• psr/http-client-implementation: ^1.0.0
• psr/http-factory: ^1.0.0
• psr/http-factory-implementation: ^1.0.0
• psr/http-message: ^1.0.0 || ^2.0.0
• psr/http-message-implementation: ^1.0.0 || ^2.0.0
• psr/log: ^2.0.0 || ^3.0.0

Requires (Dev)

• fig/log-test: ^1.1.0
• league/openapi-psr7-validator: ^0.22
• nyholm/psr7: ^1.8.0
• php-http/mock-client: ^1.5.0
• phpstan/phpstan: ^2.0.0
• phpunit/phpunit: ^12.0
• rector/rector: ^2.0.0
• squizlabs/php_codesniffer: ^4.0

MIT

• Netresearch DTT GmbH

• php
• sdk

README

The Deutsche Post Internetmarke REST API SDK package offers an interface to the following web services:

• Deutsche Post Internetmarke REST API v1

Requirements

System Requirements

• PHP 8.3+ with JSON extension

Package Requirements

• netresearch/jsonmapper: Mapper for deserialization of JSON response messages into PHP objects
• php-http/client-common: HTTPlug PluginClient for composable HTTP middleware
• php-http/discovery: Discovery service for HTTP client and message factory implementations
• php-http/httplug: Pluggable HTTP client abstraction
• php-http/logger-plugin: HTTP client logger plugin for HTTPlug
• php-http/message: HTTP message utilities and formatters
• psr/http-client: PSR-18 HTTP client interfaces
• psr/http-factory: PSR-17 HTTP message factory interfaces
• psr/http-message: PSR-7 HTTP message interfaces
• psr/log: PSR-3 logger interfaces

Virtual Package Requirements

• psr/http-client-implementation: Any package that provides a PSR-18 compatible HTTP client
• psr/http-factory-implementation: Any package that provides PSR-17 compatible HTTP message factories
• psr/http-message-implementation: Any package that provides PSR-7 HTTP messages

Development Package Requirements

• fig/log-test: PSR-3 logger implementation for testing purposes
• nyholm/psr7: PSR-7 HTTP message factory & message implementation
• php-http/mock-client: HTTPlug mock client implementation
• phpunit/phpunit: Testing framework
• phpstan/phpstan: Static analysis tool
• rector/rector: Automatic refactoring tool to help with PHP upgrades
• squizlabs/php_codesniffer: Static analysis tool

Installation

$ composer require deutschepost/sdk-api-internetmarke

Uninstallation

$ composer remove deutschepost/sdk-api-internetmarke

Testing

$ ./vendor/bin/phpunit -c test/phpunit.xml

Features

The Deutsche Post Internetmarke REST API SDK supports the following features:

• Retrieve API Info
• Retrieve Catalog (Page Formats, Contract Products, Motif Images)
• Create Voucher Orders (PDF and PNG)
• Request Refunds
• Retrieve User Profile
• Charge Portokasse Wallet

Authentication

The Internetmarke REST API requires OAuth2 client credentials combined with user credentials (see API Documentation):

1. The application is identified by a Client ID and Client Secret obtained from the DHL API Developer Portal.
2. The user is identified by username and password configured in the Deutsche Post Portokasse.

These credentials are passed to the SDK via the ServiceFactory constructor:

$serviceFactory = new \DeutschePost\Sdk\Internetmarke\Service\ServiceFactory(
    clientId: 'your-client-id',
    clientSecret: 'your-client-secret',
    username: 'portokasse-user',
    password: 'portokasse-password',
);

Retrieve Catalog

Retrieve available page formats and contract products.

Public API

The library's components suitable for consumption comprise

• services:
  • service factory
  • catalog service
• data transfer objects:
  • page format (id, name, dimensions, voucher grid)
  • contract product (product code, price)
  • catalog item (motif images)

Usage

$logger = new \Psr\Log\NullLogger();

$serviceFactory = new \DeutschePost\Sdk\Internetmarke\Service\ServiceFactory(
    clientId: 'your-client-id',
    clientSecret: 'your-client-secret',
    username: 'portokasse-user',
    password: 'portokasse-password',
    logger: $logger,
);

$catalogService = $serviceFactory->createCatalogService();

$pageFormats = $catalogService->getPageFormats();
$contractProducts = $catalogService->getContractProducts();

Create Voucher Order

Create voucher orders with PDF labels. Each order consists of shopping cart positions built via the ShoppingCartPositionBuilder.

Public API

The library's components suitable for consumption comprise

• services:
  • service factory
  • order service
  • shopping cart position builder
• data transfer objects:
  • order request
  • order (shopOrderId, walletBalance, vouchers, label PDF)
  • voucher (voucherId, trackId)
• enums:
  • VoucherLayout (AddressZone, FrankingZone)
  • Dpi (Dpi300, Dpi600, Dpi910)
  • ShippingList (None, Xml, Pdf)

Usage

$logger = new \Psr\Log\NullLogger();

$serviceFactory = new \DeutschePost\Sdk\Internetmarke\Service\ServiceFactory(
    clientId: 'your-client-id',
    clientSecret: 'your-client-secret',
    username: 'portokasse-user',
    password: 'portokasse-password',
    logger: $logger,
);

$orderService = $serviceFactory->createOrderService();

$builder = \DeutschePost\Sdk\Internetmarke\Model\ShoppingCartPositionBuilder::forPageFormat(
    pageFormatId: 1,
    columns: 2,
    rows: 5,
);

$builder->setItemDetails(productCode: 10001, price: 85);
$builder->setVoucherLayout(\DeutschePost\Sdk\Internetmarke\Api\VoucherLayout::AddressZone);
$builder->setSenderAddress(
    name: 'Sender Company',
    addressLine1: 'Senderstraße 1',
    postalCode: '04317',
    city: 'Leipzig',
    country: 'DEU',
);
$builder->setRecipientAddress(
    name: 'Jane Doe',
    addressLine1: 'Empfängerweg 2',
    postalCode: '53113',
    city: 'Bonn',
    country: 'DEU',
);

$position = $builder->create();

$orderRequest = new \DeutschePost\Sdk\Internetmarke\Model\OrderRequest(
    positions: [$position],
    total: $builder->getTotalAmount(),
    pageFormatId: 1,
);

$order = $orderService->createOrder($orderRequest);

$labelPdf = $order->getLabel();
$vouchers = $order->getVouchers();

Request Refund

Refund previously purchased vouchers.

Public API

The library's components suitable for consumption comprise

• services:
  • service factory
  • refund service
• data transfer objects:
  • refund request
  • refund voucher (voucherId, trackId)
  • refund (retoureTransactionId)
  • retoure state

Usage

$logger = new \Psr\Log\NullLogger();

$serviceFactory = new \DeutschePost\Sdk\Internetmarke\Service\ServiceFactory(
    clientId: 'your-client-id',
    clientSecret: 'your-client-secret',
    username: 'portokasse-user',
    password: 'portokasse-password',
    logger: $logger,
);

$refundService = $serviceFactory->createRefundService();

$refundRequest = new \DeutschePost\Sdk\Internetmarke\Model\RefundRequest(
    vouchers: [
        new \DeutschePost\Sdk\Internetmarke\Model\RefundVoucher(voucherId: 'A0011234ABC'),
    ],
);

$refund = $refundService->requestRefund($refundRequest);