<?php
namespace Aws\Api\Serializer;
use Aws\Api\Service;
use Aws\CommandInterface;
use GuzzleHttp\Psr7\Request;
use Psr\Http\Message\RequestInterface;
/**
* Prepares a JSON-RPC request for transfer.
* @internal
*/
class JsonRpcSerializer
{
/** @var JsonBody */
private $jsonFormatter;
/** @var string */
private $endpoint;
/** @var Service */
private $api;
/** @var string */
private $contentType;
/**
* @param Service $api Service description
* @param string $endpoint Endpoint to connect to
* @param JsonBody $jsonFormatter Optional JSON formatter to use
*/
public function __construct(
Service $api,
$endpoint,
JsonBody $jsonFormatter = null
) {
$this->endpoint = $endpoint;
$this->api = $api;
$this->jsonFormatter = $jsonFormatter ?: new JsonBody($this->api);
$this->contentType = JsonBody::getContentType($api);
}
/**
* When invoked with an AWS command, returns a serialization array
* containing "method", "uri", "headers", and "body" key value pairs.
*
* @param CommandInterface $command
*
* @return RequestInterface
*/
public function __invoke(CommandInterface $command)
{
$name = $command->getName();
$operation = $this->api->getOperation($name);
return new Request(
$operation['http']['method'],
$this->endpoint,
[
'X-Amz-Target' => $this->api->getMetadata('targetPrefix') . '.' . $name,
'Content-Type' => $this->contentType
],
$this->jsonFormatter->build(
$operation->getInput(),
$command->toArray()
)
);
}
}