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HTTPProvider.php
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HTTPProvider.php
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<?php
namespace SilverStripe\GraphQL\PersistedQuery;
use Exception;
use InvalidArgumentException;
use SilverStripe\Core\Config\Configurable;
use SilverStripe\Core\Injector\Injectable;
use SilverStripe\Core\Injector\Injector;
/**
* Class HTTPProvider
* @package SilverStripe\GraphQL\PersistedQuery
*/
class HTTPProvider implements PersistedQueryMappingProvider
{
use Configurable, Injectable;
/**
* Timeout for the HTTP request
* @config
*/
private static int $timeout = 5;
/**
* Example:
* <code>
* SilverStripe\Core\Injector\Injector:
* SilverStripe\GraphQL\PersistedQuery\PersistedQueryMappingProvider:
* class :SilverStripe\GraphQL\PersistedQuery\HTTPProvider:
* properties:
* schemaMapping:
* default: 'http://example.com/mapping.json'
* </code>
*
* Note: The mapping supports multi-schema feature, you can have other schemaKey rather than 'default'
*
* @var array
* @config
*/
protected array $schemaToURL = [
'default' => ''
];
protected HTTPClient $client;
/**
* A cache of schema key to HTTP responses
* @var array
*/
protected $responseCache = [];
/**
* HTTPProvider constructor.
*/
public function __construct(?HTTPClient $client = null)
{
if (!$client) {
$client = Injector::inst()->get(GuzzleHTTPClient::class);
}
$this->setClient($client);
}
/**
* return a map from <id> to <query>
*/
public function getQueryMapping(string $schemaKey = 'default'): array
{
if (isset($this->responseCache[$schemaKey])) {
return $this->responseCache[$schemaKey];
}
/** @noinspection PhpUndefinedFieldInspection */
/** @noinspection StaticInvocationViaThisInspection */
$urlWithKey = $this->getSchemaMapping();
if (!isset($urlWithKey[$schemaKey])) {
return [];
}
$url = trim($urlWithKey[$schemaKey] ?? '');
$map = null;
try {
$contents = $this->getClient()->getURL($url, $this->config()->get('timeout'));
$map = json_decode($contents ?? '', true);
} catch (Exception $e) {
user_error($e->getMessage(), E_USER_WARNING);
$map = [];
}
if (!is_array($map)) {
$map = [];
}
$this->responseCache[$schemaKey] = $map;
return $map;
}
/**
* return a query given an ID
*/
public function getByID(string $queryID, string $schemaKey = 'default'): ?string
{
$mapping = $this->getQueryMapping($schemaKey);
return isset($mapping[$queryID]) ? $mapping[$queryID] : null;
}
public function setSchemaMapping(array $mapping): self
{
foreach ($mapping as $schemaKey => $url) {
if (!filter_var($url, FILTER_VALIDATE_URL)) {
throw new InvalidArgumentException(
'setSchemaMapping accepts an array of schema keys to URLs'
);
}
}
// If the URLs have changed, stale the cache.
$this->responseCache = [];
$this->schemaToURL = $mapping;
return $this;
}
public function getSchemaMapping(): array
{
return $this->schemaToURL;
}
public function setClient(HTTPClient $client): self
{
$this->client = $client;
return $this;
}
public function getClient(): HTTPClient
{
return $this->client;
}
}