File Core/Schema/Request/PingRequest.php

1:	<?php
2:
3:	declare(strict_types=1);
4:
5:	/**
6:	* This file is part of the Nexus MCP SDK package.
7:	*
8:	* (c) 2026 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\Core\Schema\Request;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Mcp\Core\Schema\JsonRpc\JsonRpcRequest;
18:	use Nexus\Mcp\Core\Schema\RequestId;
19:	use Nexus\Mcp\Core\Schema\RequestParams\EmptyRequestParams;
20:
21:	/**
22:	* A ping, issued by either the server or the client, to check that the other party is still alive.
23:	* The receiver must promptly respond, or else may be disconnected.
24:	*
25:	* @extends JsonRpcRequest<'ping'>
26:	*
27:	* @see https://modelcontextprotocol.io/specification/2025-11-25/schema#pingrequest
28:	*/
29:	final readonly class PingRequest extends JsonRpcRequest implements ClientRequest, ServerRequest
30:	{
31:	#[\Override]
32:	public static function getMethod(): string
33:	{
34:	return 'ping';
35:	}
36:
37:	#[\Override]
38:	public static function fromArray(array $data): static
39:	{
40:	Assert::that($data)->hasOffset('id', 'missing the required "id" key.');
41:
42:	$id = $data['id'];
43:	Assert::that($id)->isArrayKey('"id" must be an int or string, {type} given.');
44:
45:	$params = new EmptyRequestParams();
46:
47:	if (\array_key_exists('params', $data)) {
48:	Assert::that($data['params'])
49:	->isArray('"params" must be an object, {type} given.')
50:	->isMap('"params" must be a string-keyed object.')
51:	;
52:	$params = EmptyRequestParams::fromArray($data['params']);
53:	}
54:
55:	return new self(new RequestId($id), $params);
56:	}
57:	}
58:

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