| 1: | <?php |
| 2: | |
| 3: | declare(strict_types=1); |
| 4: | |
| 5: | /** |
| 6: | * This file is part of the Nexus MCP SDK package. |
| 7: | * |
| 8: | * (c) 2025 John Paul E. Balandan, CPA <paulbalandan@gmail.com> |
| 9: | * |
| 10: | * For the full copyright and license information, please view |
| 11: | * the LICENSE file that was distributed with this source code. |
| 12: | */ |
| 13: | |
| 14: | namespace Nexus\Mcp\Schema\Request; |
| 15: | |
| 16: | use Nexus\Mcp\Schema\Message\JsonRpcRequest; |
| 17: | use Nexus\Mcp\Schema\Message\RequestId; |
| 18: | |
| 19: | /** |
| 20: | * A ping, issued by either the server or the client, to check that the other party is still alive. |
| 21: | * The receiver must promptly respond, or else may be disconnected. |
| 22: | * |
| 23: | * @extends JsonRpcRequest<array{ |
| 24: | * jsonrpc: '2.0', |
| 25: | * id: int|non-empty-string, |
| 26: | * method: 'ping', |
| 27: | * params?: array{ |
| 28: | * _meta?: array<string, mixed>, |
| 29: | * } |
| 30: | * }> |
| 31: | */ |
| 32: | final readonly class PingRequest extends JsonRpcRequest implements ClientRequest, ServerRequest |
| 33: | { |
| 34: | /** |
| 35: | * @param null|array<string, mixed> $meta Reserved by MCP to allow clients and servers to attach |
| 36: | * additional metadata to their interactions. |
| 37: | */ |
| 38: | public function __construct(RequestId $id, ?array $meta = null) |
| 39: | { |
| 40: | $params = isset($meta) ? ['_meta' => $meta] : null; |
| 41: | |
| 42: | parent::__construct(self::JSON_RPC_VERSION, $id, 'ping', $params); |
| 43: | } |
| 44: | } |
| 45: |