File Core/Schema/Request/InitializeRequest.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\InitializeRequestParams;
20:
21:	/**
22:	* This request is sent from the client to the server when it first connects, asking it to begin initialization.
23:	*
24:	* @property-read InitializeRequestParams $params
25:	*
26:	* @extends JsonRpcRequest<'initialize'>
27:	*
28:	* @see https://modelcontextprotocol.io/specification/2025-11-25/schema#initializerequest
29:	*/
30:	final readonly class InitializeRequest extends JsonRpcRequest implements ClientRequest
31:	{
32:	public function __construct(RequestId $id, InitializeRequestParams $params)
33:	{
34:	parent::__construct($id, $params);
35:	}
36:
37:	#[\Override]
38:	public static function getMethod(): string
39:	{
40:	return 'initialize';
41:	}
42:
43:	#[\Override]
44:	public static function fromArray(array $data): static
45:	{
46:	Assert::that($data)->hasOffset('id', 'missing the required "id" key.');
47:
48:	$id = $data['id'];
49:	Assert::that($id)->isArrayKey('"id" must be an int or string, {type} given.');
50:
51:	Assert::that($data)->hasOffset('params', 'missing the required "params" key.');
52:	Assert::that($data['params'])
53:	->isArray('"params" must be an object, {type} given.')
54:	->isMap('"params" must be a string-keyed object.')
55:	;
56:
57:	return new self(
58:	new RequestId($id),
59:	InitializeRequestParams::fromArray($data['params']),
60:	);
61:	}
62:	}
63:

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