.kt

public class HttpGetRequest : AsyncTask<String, Void, String>() {

  val REQUEST_METHOD = "GET"
  val READ_TIMEOUT = 15000
  val CONNECTION_TIMEOUT = 15000

  override fun doInBackground(vararg params: String?): String {
    val stringUrl : String = params[0] as String
    var result : String? = null
    var inputLine : String? = null

    try {
      val url = URL(stringUrl)
      var connection : HttpURLConnection = url.openConnection() as HttpURLConnection
      Log.d("CURRENT", connection.toString())

      connection.requestMethod = REQUEST_METHOD
      connection.readTimeout = READ_TIMEOUT
      connection.connectTimeout = CONNECTION_TIMEOUT

      connection.connect()

      var streamReader = InputStreamReader(connection.inputStream)

      var reader = BufferedReader(streamReader)
      var stringBuilder = StringBuilder()

      while ({inputLine = reader.readLine(); inputLine}() != null) {
        stringBuilder.append(inputLine)
      }

      reader.close()
      streamReader.close()

      result = stringBuilder.toString()
    } catch (e : Throwable) {
      e.printStackTrace()
      result = "ERROR"
    }
  return result as String
  }

  override fun onPostExecute(result: String?) {
    super.onPostExecute(result)
  }
}