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wallee PHP Library

The wallee PHP library wraps around the wallee API. This library facilitates your interaction with various services such as transactions, accounts, and subscriptions.

Documentation

wallee Web Service API

Requirements

  • PHP 5.6.0 and above

Installation

You can use Composer or install manually

Composer

The preferred method is via composer. Follow the installation instructions if you do not already have composer installed.

Once composer is installed, execute the following command in your project root to install this library:

composer require wallee/sdk

Manual Installation

Alternatively you can download the package in its entirety. The Releases page lists all stable versions.

Uncompress the zip file you download, and include the autoloader in your project:

require_once '/path/to/php-sdk/autoload.php';

Usage

The library needs to be configured with your account's space id, user id, and secret key which are available in your wallee account dashboard. Set space_id, user_id, and api_secret to their values.

Configuring a Service

require_once(__DIR__ . '/autoload.php');

// Configuration
$spaceId = 405;
$userId = 512;
$secret = 'FKrO76r5VwJtBrqZawBspljbBNOxp5veKQQkOnZxucQ=';

// Setup API client
$client = new \Wallee\Sdk\ApiClient($userId, $secret);

// Get API service instance
$client->getTransactionService();
$client->getTransactionPaymentPageService();

To get started with sending transactions, please review the example below:

require_once(__DIR__ . '/autoload.php');

// Configuration
$spaceId = 405;
$userId = 512;
$secret = 'FKrO76r5VwJtBrqZawBspljbBNOxp5veKQQkOnZxucQ=';

// Setup API client
$client = new \Wallee\Sdk\ApiClient($userId, $secret);

// Create transaction
$lineItem = new \Wallee\Sdk\Model\LineItemCreate();
$lineItem->setName('Red T-Shirt');
$lineItem->setUniqueId('5412');
$lineItem->setSku('red-t-shirt-123');
$lineItem->setQuantity(1);
$lineItem->setAmountIncludingTax(29.95);
$lineItem->setType(\Wallee\Sdk\Model\LineItemType::PRODUCT);


$transactionPayload = new \Wallee\Sdk\Model\TransactionCreate();
$transactionPayload->setCurrency('EUR');
$transactionPayload->setLineItems(array($lineItem));
$transactionPayload->setAutoConfirmationEnabled(true);

$transaction = $client->getTransactionService()->create($spaceId, $transactionPayload);

// Create Payment Page URL:
$redirectionUrl = $client->getTransactionPaymentPageService()->paymentPageUrl($spaceId, $transaction->getId());

header('Location: ' . $redirectionUrl);

HTTP Client

You can either use php curl or php socket extentions. It is recommend you install the necessary extentions and enable them on your system.

You have to ways two specify which HTTP client you prefer.

$userId = 512;
$secret = 'FKrO76r5VwJtBrqZawBspljbBNOxp5veKQQkOnZxucQ=';

// Setup API client
$client = new \Wallee\Sdk\ApiClient($userId, $secret);

$httpClientType = \Wallee\Sdk\Http\HttpClientFactory::TYPE_CURL; // or \Wallee\Sdk\Http\HttpClientFactory::TYPE_SOCKET

$client->setHttpClientType($httpClientType);

//Setup a custom connection timeout if needed. (Default value is: 25 seconds)
$client->setConnectionTimeout(20);

You can also specify the HTTP client via the WLE_HTTP_CLIENT environment variable. The possible string values are curl or socket.

<?php
putenv('WLE_HTTP_CLIENT=curl');
?>

Integrating Webhook Payload Signing Mechanism into webhook callback handler

The HTTP request which is sent for a state change of an entity now includes an additional field state, which provides information about the update of the monitored entity's state. This enhancement is a result of the implementation of our webhook encryption mechanism.

Payload field state provides direct information about the state update of the entity, making additional API calls to retrieve the entity state redundant.

⚠️ Warning: Generic Pseudocode

The provided pseudocode is intentionally generic and serves to illustrate the process of enhancing your API to leverage webhook payload signing. It is not a complete implementation.

Please ensure that you adapt and extend this code to meet the specific needs of your application, including appropriate security measures and error handling. For a detailed webhook payload signing mechanism understanding we highly recommend referring to our comprehensive Webhook Payload Signing Documentation.

public function handleWebhook() {
    $requestPayload = file_get_contents('php://input');
    $signature = $_SERVER['HTTP_X_SIGNATURE'] ?? '';

    if (empty($signature)) {
        // Make additional API call to retrieve the entity state
        // ...
    } else {
        if ($client->getWebhookEncryptionService()->isContentValid($signature, $requestPayload)) {
            // Parse requestPayload to extract 'state' value
            // $state = ...
            // Process entity's state change
            // $this->processEntityStateChange($state);
            // ...
        }
    }

    // Process the received webhook data
    // ...

}

License

Please see the license file for more information.