From priv

.gitattributes

@@ -0,0 +1,11 @@
+# Auto detect text files and perform LF normalization
+* text=auto
+* text eol=lf
+
+# Convert images to binary
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.tiff binary
+*.ico binary

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "paynl/php-sdk",
     "description": "Software Development Kit for implementing Pay.'s API version 3",
-    "version": "0.2.0",
+    "version": "0.2.1",
     "type": "library",
     "require": {
         "php": "^8.1",

config/config.global.php

@@ -7,5 +7,6 @@
         'username' => '', # Use AT-Code or SL-Code. Use AT-code together with API-Token.
         'password' => '', # Use API token or secret. Use Secret in combination with SL-Code.
     ],
-    'debug' => false
-];
+    'debug' => false,
+    'useFileCaching' => true
+];

samples/OrderCreate.php

@@ -106,7 +106,6 @@
 try {
     $request->setReference('SDK0123456789');
     $payOrder = $request->start();
-    echo get_class($payOrder);
 } catch (PayException $e) {
     echo '<pre>';
     echo 'Technical message: ' . $e->getMessage() . PHP_EOL;

samples/ServiceGetConfig.php

@@ -13,10 +13,9 @@
 $config->setUsername($_REQUEST['username'] ?? '');
 $config->setPassword($_REQUEST['password'] ?? '');
 
-
 try {
     $slCode = $_REQUEST['slcode'] ?? '';
-    $config = (new ServiceGetConfigRequest($slCode))->setConfig($config)->start();
+    $serviceConfig = (new ServiceGetConfigRequest($slCode))->setConfig($config)->start();
 } catch (PayException $e) {
     echo '<pre>';
     echo 'Technical message: ' . $e->getMessage() . PHP_EOL;
@@ -28,18 +27,18 @@
 
 echo '<pre>';
 
-echo $config->getCode() . ' - ' . $config->getName() . PHP_EOL;
+echo $serviceConfig->getCode() . ' - ' . $serviceConfig->getName() . PHP_EOL;
 
-$banks = $config->getBanks();
+$banks = $serviceConfig->getBanks();
 print_r($banks);
 
-$terminals = $config->getTerminals();
+$terminals = $serviceConfig->getTerminals();
 print_r($terminals);
 
-$tguList = $config->getCores();
+$tguList = $serviceConfig->getCores();
 print_r($tguList);
 
-$paymentMethods = $config->getPaymentMethods();
+$paymentMethods = $serviceConfig->getPaymentMethods();
 foreach ($paymentMethods as $method) {
     echo $method->getId() . ' - ';
     echo $method->getName() . ' - ';
@@ -51,6 +50,6 @@
     echo PHP_EOL;
 }
 
-foreach ($config->getCheckoutOptions() as $checkoutOption) {
+foreach ($serviceConfig->getCheckoutOptions() as $checkoutOption) {
     echo '=> TAG: ' . $checkoutOption->getTag() . PHP_EOL;
 }

src/Config/Config.php

@@ -371,6 +371,14 @@ public function isEmpty()
         return false;
     }
 
+    /**
+     * @return boolean
+     */
+    public function isCacheEnabled()
+    {
+        return ($this->data['useFileCaching'] ?? 0) == 1;
+    }
+
     /**
      * @return string
      */
@@ -389,6 +397,16 @@ public function setPassword(string $password): self
         return $this;
     }
 
+    /**
+     * @param boolean $caching
+     * @return self
+     */
+    public function setCaching(bool $caching): self
+    {
+        $this->data['useFileCaching'] = $caching;
+        return $this;
+    }
+
     /**
      * @return string
      */

src/Helpers/StaticCacheTrait.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace PayNL\Sdk\Helpers;
+
+trait StaticCacheTrait
+{
+    /**
+     * In-memory static cache array
+     */
+    private static array $cache = [];
+
+    /**
+     * Get value from static cache, or execute callback and cache it.
+     *
+     * @param string $key
+     * @param callable $callback
+     * @return mixed
+     * @throws \Exception
+     */
+    protected function staticCache(string $key, callable $callback): mixed
+    {
+        if (isset(self::$cache[$key])) {
+            if (self::$cache[$key] instanceof \Exception) {
+                throw self::$cache[$key];
+            }
+            return self::$cache[$key];
+        }
+
+        try {
+            return self::$cache[$key] = $callback();
+        } catch (\Exception $e) {
+            self::$cache[$key] = $e;
+            throw $e;
+        }
+    }
+
+    /**
+     * @param string $key
+     * @return boolean
+     */
+    protected function hasStaticCache(string $key): bool
+    {
+        return isset(self::$cache[$key]);
+    }
+
+    /**
+     * @param string $key
+     * @return mixed
+     * @throws \Exception
+     */
+    protected function getStaticCacheValue(string $key): mixed
+    {
+        if (!isset(self::$cache[$key])) {
+            return null;
+        }
+
+        if (self::$cache[$key] instanceof \Exception) {
+            throw self::$cache[$key];
+        }
+
+        return self::$cache[$key];
+    }
+}

src/Model/Request/OrderStatusRequest.php

@@ -9,6 +9,8 @@
 use PayNL\Sdk\Model\Pay\PayOrder;
 use PayNL\Sdk\Request\RequestInterface;
 use PayNL\Sdk\Config\Config;
+use PayNL\Sdk\Helpers\StaticCacheTrait;
+use PayNL\Sdk\Util\PayCache;
 
 /**
  * Class OrderStatusRequest
@@ -18,6 +20,8 @@
  */
 class OrderStatusRequest extends RequestData
 {
+    use StaticCacheTrait;
+
     private string $orderId;
 
     /**
@@ -35,7 +39,7 @@ public function __construct(string $orderId)
     public function getPathParameters(): array
     {
         return [
-          'transactionId' => $this->orderId
+            'transactionId' => $this->orderId
         ];
     }
 
@@ -53,9 +57,25 @@ public function getBodyParameters(): array
      */
     public function start(): PayOrder
     {
-        # Always use TGU-1 for orderStatus
-        $this->config->setCore(Config::TGU1);
-
-        return parent::start();
+        $cacheKey = 'order_status_' . md5(json_encode([$this->config->getUsername(), $this->orderId]));
+
+        if ($this->hasStaticCache($cacheKey)) {
+            return $this->getStaticCacheValue($cacheKey);
+        }
+
+        if ($this->config->isCacheEnabled()) {
+            $cache = new PayCache();
+            return $cache->get($cacheKey, function () use ($cacheKey) {
+                return $this->staticCache($cacheKey, function () {
+                    $this->config->setCore(Config::TGU1);
+                    return parent::start();
+                });
+            }, 3); # 3 seconds file caching
+        }
+
+        return $this->staticCache($cacheKey, function () {
+            $this->config->setCore(Config::TGU1);
+            return parent::start();
+        });
     }
-}
+}

src/Model/Request/ServiceGetConfigRequest.php

@@ -8,6 +8,8 @@
 use PayNL\Sdk\Request\RequestData;
 use PayNL\Sdk\Model\Response\ServiceGetConfigResponse;
 use PayNL\Sdk\Request\RequestInterface;
+use PayNL\Sdk\Util\PayCache;
+use PayNL\Sdk\Helpers\StaticCacheTrait;
 
 /**
  * Class ServiceGetConfigRequest
@@ -18,12 +20,17 @@
  */
 class ServiceGetConfigRequest extends RequestData
 {
+    use StaticCacheTrait;
+
+    /**
+     * @var string|mixed
+     */
     private string $serviceId;
 
     /**
-     * @param $serviceId
+     * @param string $serviceId
      */
-    public function __construct($serviceId = '')
+    public function __construct(string $serviceId = '')
     {
         $this->serviceId = $serviceId;
         parent::__construct('GetConfig', '/services/config', RequestInterface::METHOD_GET);
@@ -53,9 +60,35 @@ public function getBodyParameters(): array
      * @throws PayException
      */
     public function start(): ServiceGetConfigResponse
+    {
+        $cacheKey = 'service_getconfig_' . md5(json_encode([$this->config->getUsername(), $this->config->getPassword(), $this->serviceId]));
+
+        if ($this->hasStaticCache($cacheKey)) {
+            return $this->getStaticCacheValue($cacheKey);
+        }
+
+        if ($this->config->isCacheEnabled()) {
+            $cache = new PayCache();
+            return $cache->get($cacheKey, function () use ($cacheKey) {
+                return $this->staticCache($cacheKey, function () {
+                    return $this->startAPI();
+                });
+            }, 5);
+        }
+
+        return $this->staticCache($cacheKey, function () {
+            return $this->startAPI();
+        });
+    }
+
+    /**
+     * @return ServiceGetConfigResponse
+     * @throws PayException
+     */
+    private function startAPI(): ServiceGetConfigResponse
     {
         $this->config->setCore('https://rest.pay.nl');
         $this->config->setVersion(2);
         return parent::start();
     }
-}
+}

src/Model/Request/TransactionStatusRequest.php

@@ -4,10 +4,13 @@
 
 namespace PayNL\Sdk\Model\Request;
 
+use PayNL\Sdk\Config\Config;
 use PayNL\Sdk\Exception\PayException;
 use PayNL\Sdk\Request\RequestData;
 use PayNL\Sdk\Model\Pay\PayOrder;
 use PayNL\Sdk\Request\RequestInterface;
+use PayNL\Sdk\Helpers\StaticCacheTrait;
+use PayNL\Sdk\Util\PayCache;
 
 /**
  * Class TransactionStatusRequest
@@ -17,12 +20,14 @@
  */
 class TransactionStatusRequest extends RequestData
 {
+    use StaticCacheTrait;
+
     private string $orderId;
 
     /**
-     * @param $orderid
+     * @param string $orderId
      */
-    public function __construct($orderId)
+    public function __construct(string $orderId)
     {
         $this->orderId = $orderId;
         parent::__construct('TransactionStatus', '/transactions/%transactionId%/status', RequestInterface::METHOD_GET);
@@ -48,12 +53,29 @@ public function getBodyParameters(): array
 
     /**
      * @return PayOrder
-     * @throws PayException
+     * @throws \Exception
      */
     public function start(): PayOrder
     {
-        # Always use rest.pay.nl for this status request
-        $this->config->setCore('https://rest.pay.nl');
-        return parent::start();
+        $cacheKey = 'transaction_status_' . md5(json_encode([$this->config->getUsername(), $this->orderId]));
+
+        if ($this->hasStaticCache($cacheKey)) {
+            return $this->getStaticCacheValue($cacheKey);
+        }
+
+        if ($this->config->isCacheEnabled()) {
+            $cache = new PayCache();
+            return $cache->get($cacheKey, function () use ($cacheKey) {
+                return $this->staticCache($cacheKey, function () {
+                    $this->config->setCore('https://rest.pay.nl');
+                    return parent::start();
+                });
+            }, 3); # 3 seconds file caching
+        }
+
+        return $this->staticCache($cacheKey, function () {
+            $this->config->setCore('https://rest.pay.nl');
+            return parent::start();
+        });
     }
-}
+}