public function request($uri, $method = 'GET', array $headers = array(), array $data = array())
	{

		if ('GET' === $method) {
			if (!empty($data)) {
				$data = '?' . http_build_query($data, '', '&');
			} else {
				$data = '';
			}
			$headers[] = 'Cache-Control: no-cache';
			$headers[] = 'Content-Type: application/json';
			$curlOptions[\CURLOPT_HTTPGET] = true;
			$curlOptions[\CURLOPT_RETURNTRANSFER] = true;
			$curlOptions[\CURLOPT_URL] = $uri . $data;
		} elseif ('POST' === $method) {
			$headers[] = 'Cache-Control: no-cache';
			$headers[] = 'Content-Type: application/json';
			$curlOptions[\CURLOPT_POST] = true;
			$curlOptions[\CURLOPT_RETURNTRANSFER] = true;
			$curlOptions[\CURLOPT_URL] = $uri;
			$curlOptions[\CURLOPT_POSTFIELDS] = json_encode($data);
			$headers[] = 'Content-Length: ' . strlen(json_encode($data));
		}  elseif ('FILE' === $method) {
			$data = Array('document' => '@' . $data['file']);
			$headers[] = 'Cache-Control: no-cache';
			$headers[] = 'Content-Type: multipart/form-data';
			$curlOptions[\CURLOPT_POST] = true;
			$curlOptions[\CURLOPT_RETURNTRANSFER] = true;
			$curlOptions[\CURLOPT_URL] = $uri;
			$curlOptions[\CURLOPT_POSTFIELDS] = $data;
		} else {
			die(sprintf('An HTTP method "%s" is not supported. Use "GET" or "POST" or "FILE".', $method));
		}
		$curlOptions[\CURLOPT_HTTPHEADER] = $headers;
		$curl = $this->getCurl();
		curl_setopt_array($curl, $curlOptions);
		$response = curl_exec($curl);
		if (false === $response) {
			var_dump(curl_getinfo($curl));
			$error = curl_error($curl);
			$errorCode = curl_errno($curl);
			die('Curl error: ' . $error. ' code: ' . $errorCode);
		}
		$httpCode = curl_getinfo($this->curl, \CURLINFO_HTTP_CODE);
		return array($httpCode, $response);
	}