php - SDK Error while trying to add caching to KMS -


i getting following error

fatal error: uncaught exception 'aws\common\exception\invalidargumentexception' message 'unable utilize caching specified options' in vendor/aws/aws-sdk-php/src/aws/common/credentials/credentials.php:305 stack trace:   #0 vendor/aws/aws-sdk-php/src/aws/common/credentials/credentials.php(113): aws\common\credentials\credentials::createcache(object(aws\common\credentials\refreshableinstanceprofilecredentials), object(illuminate\cache\apcstore), 'credentials_214...')   #1 vendor/aws/aws-sdk-php/src/aws/common/client/clientbuilder.php(431): aws\common\credentials\credentials::factory(object(guzzle\common\collection))   #2 vendor/aws/aws-sdk-php/src/aws/common/client/clientbuilder.php(227): aws\common\client\clientbuilder->getcredent in vendor/aws/aws-sdk-php/src/aws/common/credentials/credentials.php on line 305

with following code

use aws\kms\exception\kmsexception,     aws\kms\kmsclient;  ....  public function __construct($region = 'us-east-1') {     $this->cacheadapter = new illuminate\cache\apcstore(new illuminate\cache\apcwrapper());      $this->region = $region;     $this->kms = kmsclient::factory([         'credentials.cache' => $this->cacheadapter,         'region'            => $this->region,     ]); }

i believe needs implement guzzle cacheadaperinterface not how go it?

i use caching service in front of sdk fixed problem.

<?php  namespace library\cache\aws {   use guzzle\cache\cacheadapterinterface cacheinterface;    class apcadapter implements cacheinterface   {     /**      * test if entry exists in cache.      *      * @param string $id cache id cache id of entry check for.      * @param array $options array of cache adapter options      * @return bool returns true if cache entry exists given cache id, false otherwise.      */     public function contains($id, array $options = null)     {         return apc_exists($id);     }      /**      * deletes cache entry.      *      * @param string $id cache id      * @param array $options array of cache adapter options      * @return bool true on success, false on failure      */     public function delete($id, array $options = null)     {         return apc_delete($id);     }      /**      * fetches entry cache.      *      * @param string $id cache id id of cache entry fetch.      * @param array $options array of cache adapter options      * @return string cached data or false, if no cache entry exists given id.      */     public function fetch($id, array $options = null)     {         return apc_fetch($id);     }      /**      * puts data cache.      *      * @param string $id cache id      * @param string $data cache entry/data      * @param int|bool $lifetime lifetime. if != false, sets specific lifetime cache entry      * @param array $options array of cache adapter options      * @return bool true if entry stored in cache, false otherwise.      */     public function save($id, $data, $lifetime = false, array $options = null)     {         return apc_add($id, $data, intval($lifetime));     }   } }  namespace library\servicebuilder {    use aws\common\aws               servicebuilder,       aws\dynamodb\dynamodbclient  dynamodbclient,       aws\kms\kmsclient            kmsclient,       library\cache\aws\apcadapter apcadapter;    class aws   {     protected static $_instance = [];     protected        $_awsinstance;     protected        $_region;      protected function __construct($region)     {         $cacheadapter = new apcadapter();         $this->_region = $region;         $this->_awsinstance = servicebuilder::factory(null, [               'credentials.cache' => $cacheadapter,                'region'            => $region,             ]         );      }      /**      * @param string $region [opt, default=us-east-1]      * @static      * @return \engrade\servicebuilder\aws      */     public static function getinstance($region = 'us-east-1')     {         if (! array_key_exists($region, self::$_instance))          {             self::$_instance[$region] = new self($region);         }          return self::$_instance[$region];     }      /**      * @return kmsclient      */     public function getkmsclient()      {         return $this->_awsinstance->get('kms');     }      /**      * @return dynamodbclient      */     public function getdynamodbclient()      {         return $this->_awsinstance->get('dynamodb');     }   } }  namespace {   use library\servicebuilder servicebuilder       aws\kms\exception\kmsexception,       aws\kms\kmsclient;    ....    public function __construct($region = 'us-east-1')   {     $this->region = $region;      $aws = servicebuilder\aws::getinstance();     $kms = $aws->getkmsclient();      $this->kms = $kms::factory([       'region' => $this->region,     ]);   } }

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