Internal GraphQL Server

此扩展会安装一个内部 GraphQL Server，可通过 PHP 代码在应用程序内部调用。

内部 GraphQL Server 通过类 GatoGraphQL\InternalGraphQLServer\GraphQLServer 访问，提供以下三个方法：

executeQuery：执行一个 GraphQL query
executeQueryInFile：执行包含在 (.gql) 文件中的 GraphQL query
executePersistedQuery：执行已保存的 GraphQL query（以整数形式提供 ID，或以字符串形式提供 slug）（需要 Persisted Queries 扩展）

方法签名如下：

namespace GatoGraphQL\InternalGraphQLServer;
 
use PoP\Root\HttpFoundation\Response;
 
class GraphQLServer {
  /**
   * Execute a GraphQL query
   */
  public static function executeQuery(
    string $query,
    array $variables = [],
    ?string $operationName = null,
    int|string|null $schemaConfigurationIDOrSlug = null,
  ): Response {
    // ...
  }
 
 
  /**
   * Execute a GraphQL query contained in a (`.gql`) file
   */
  public static function executeQueryInFile(
    string $file,
    array $variables = [],
    ?string $operationName = null,
    int|string|null $schemaConfigurationIDOrSlug = null,
  ): Response {
    // ...
  }
 
 
  /**
   * Execute a persisted GraphQL query (providing its object
   * of type WP_Post, ID as an int, or slug as a string)
   */
  public static function executePersistedQuery(
    WP_Post|string|int $persistedQuery,
    array $variables = [],
    ?string $operationName = null
  ): Response {
    // ...
  }
}

执行 GraphQL query 并获取响应内容：

use GatoGraphQL\InternalGraphQLServer\GraphQLServer;
 
// Provide the GraphQL query
$query = "{ ... }";
 
// Execute the query against the internal server
$response = GraphQLServer::executeQuery($query);
 
// Get the content and decode it
$responseContent = json_decode($response->getContent(), true);
 
// Access the data and errors from the response
$responseData = $responseContent["data"] ?? [];
$responseErrors = $responseContent["errors"] ?? [];