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<?php
namespace GraphQL\Server;
/**
* Structure representing parsed HTTP parameters for GraphQL operation
*/
class OperationParams
{
/**
* Id of the query (when using persistent queries).
*
* Valid aliases (case-insensitive):
* - id
* - queryId
* - documentId
*
* @api
* @var string
*/
public $queryId;
/**
* @api
* @var string
*/
public $query;
/**
* @api
* @var string
*/
public $operation;
/**
* @api
* @var array
*/
public $variables;
/**
* @var array
*/
private $originalInput;
/**
* @var bool
*/
private $readOnly;
/**
* Creates an instance from given array
*
* @api
* @param array $params
* @param bool $readonly
* @return OperationParams
*/
public static function create(array $params, $readonly = false)
{
$instance = new static();
$params = array_change_key_case($params, CASE_LOWER);
$instance->originalInput = $params;
$params += [
'query' => null,
'queryid' => null,
'documentid' => null, // alias to queryid
'id' => null, // alias to queryid
'operationname' => null,
'variables' => null
];
if ($params['variables'] === "") {
$params['variables'] = null;
}
if (is_string($params['variables'])) {
$tmp = json_decode($params['variables'], true);
if (!json_last_error()) {
$params['variables'] = $tmp;
}
}
$instance->query = $params['query'];
$instance->queryId = $params['queryid'] ?: $params['documentid'] ?: $params['id'];
$instance->operation = $params['operationname'];
$instance->variables = $params['variables'];
$instance->readOnly = (bool) $readonly;
return $instance;
}
/**
* @api
* @param string $key
* @return mixed
*/
public function getOriginalInput($key)
{
return isset($this->originalInput[$key]) ? $this->originalInput[$key] : null;
}
/**
* Indicates that operation is executed in read-only context
* (e.g. via HTTP GET request)
*
* @api
* @return bool
*/
public function isReadOnly()
{
return $this->readOnly;
}
}