File Core/Schema/Error/InvalidRequestError.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\Error;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Mcp\Core\Schema\Enum\ProtocolErrorCode;
18:	use Nexus\Mcp\Core\Schema\Error;
19:
20:	/**
21:	* A JSON-RPC error indicating that the request is not a valid request object.
22:	*
23:	* This error is returned when the message structure does not conform to the JSON-RPC 2.0
24:	* specification requirements for a request (e.g., missing required fields like `jsonrpc` or
25:	* `method`, or using invalid types for these fields).
26:	*
27:	* @extends Error<array{code: -32600, message: non-empty-string, data?: mixed}>
28:	*
29:	* @see https://modelcontextprotocol.io/specification/draft/schema#invalidrequesterror
30:	*/
31:	final readonly class InvalidRequestError extends Error
32:	{
33:	public const string DEFAULT_MESSAGE = 'Invalid request';
34:
35:	public function __construct(string $message, mixed $data = null)
36:	{
37:	parent::__construct(code: ProtocolErrorCode::InvalidRequest, message: $message, data: $data);
38:	}
39:
40:	#[\Override]
41:	public static function fromArray(array $data): static
42:	{
43:	$message = $data['message'] ?? self::DEFAULT_MESSAGE;
44:	Assert::that($message)->isString('error "message" must be a string, {type} given.');
45:
46:	return new self(message: $message, data: $data['data'] ?? null);
47:	}
48:
49:	#[\Override]
50:	public function toArray(): array
51:	{
52:	$result = [
53:	'code' => ProtocolErrorCode::InvalidRequest->value,
54:	'message' => $this->message,
55:	];
56:
57:	$data = $this->data ?? [];
58:
59:	if ([] !== $data) {
60:	$result['data'] = $data;
61:	}
62:
63:	return $result;
64:	}
65:	}
66:

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