API请求是通过一组代理类发出的，可以在emis\\document\\API\\proxy命名空间下找到。一个简单的例子是获取国家代码‘HU’的文档标题。:

require('vendor/autoload.php');

use Emis\Http\Client;
use Emis\Document\Api\Proxy\Search;

$client = new Client();
$client->setApi(Client::DOCUMENTS_API);
$client->setToken("YOUR_TOKEN");

$search = new Search($client);
$result = $search->query('HU');

foreach ($result->getDocuments() as $document) {
    echo $document->getTitle() . "\n";
}