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Challenge: Request & Parse Data

The student materials have been reviewed and are updated as of July 2022.

Create another request with the HttpURLConnection, as practice, and use what you’ve learned so far to parse the data from JSON.


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To help you get a good understanding of Gson, parsing using libraries, and to repeat what you’ve learned about making requests using the HttpURLConnection, I’ve prepared a fun challenge for you!

private val networkStatusChecker by lazy {
networkStatusChecker.performIfConnectedToInternet {
  activity?.runOnUiThread {
fun completeTask(taskId: String, onTaskCompleted: (Throwable?) -> Unit) { // added task ID
    Thread(Runnable {
      val connection = URL("$BASE_URL/api/note?id=$taskId").openConnection() as HttpURLConnection
  val connection = URL(
  ).openConnection() as HttpURLConnection
Thread(Runnable {
  val connection = URL(
  ).openConnection() as HttpURLConnection

  connection.requestMethod = "POST"
  connection.setRequestProperty("Content-Type", "application/json")
  connection.setRequestProperty("Accept", "application/json")
  connection.setRequestProperty("Authorization", App.getToken())
  connection.readTimeout = 10000
  connection.connectTimeout = 10000
  connection.doOutput = true
  connection.doInput = true

  try {
    val reader = InputStreamReader(connection.inputStream)

    reader.use { input ->
      val response = StringBuilder()
      val bufferedReader = BufferedReader(input)

      bufferedReader.useLines { lines ->
        lines.forEach {

  } catch (error: Throwable) {

val unfinishedTasks = tasksResponse.notes.filter { !it.isCompleted }

onTasksReceived(unfinishedTasks, null)