<?php
namespace Aws\Api\Serializer;
use Aws\Api\Service;
use Aws\CommandInterface;
use GuzzleHttp\Psr7\Request;
use Psr\Http\Message\RequestInterface;
/**
* Serializes a query protocol request.
* @internal
*/
class QuerySerializer
{
private $endpoint;
private $api;
private $paramBuilder;
public function __construct(
Service $api,
$endpoint,
callable $paramBuilder = null
) {
$this->api = $api;
$this->endpoint = $endpoint;
$this->paramBuilder = $paramBuilder ?: new QueryParamBuilder();
}
/**
* 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)
{
$operation = $this->api->getOperation($command->getName());
$body = [
'Action' => $command->getName(),
'Version' => $this->api->getMetadata('apiVersion')
];
$params = $command->toArray();
// Only build up the parameters when there are parameters to build
if ($params) {
$body += call_user_func(
$this->paramBuilder,
$operation->getInput(),
$params
);
}
$body = http_build_query($body, null, '&', PHP_QUERY_RFC3986);
return new Request(
'POST',
$this->endpoint,
[
'Content-Length' => strlen($body),
'Content-Type' => 'application/x-www-form-urlencoded'
],
$body
);
}
}