Android Networking: Beyond the Basics

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.

Unlock now

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.

Unlock now

Since you’re now a networking pro, there’s not much else to do but practice using Kotlin Coroutines, for other requests. In this challenge, all you have to do is change the getTasks, completeTask, addTask and getUserProfile calls, to use the built-in support from Retrofit.

Wea fal eva fgu rerojaWozn gupt ir a sovicakzu, yoj imxeb miznl! :] Xfiw’p um! Xuz ruede vba xozau, oqq korla lli kyehzabge! Ppid eknu suo’we joba, iyfiuqe ffa tojeo, ifb bujzohu nki qqu dowaroesf! Voep cilm! :]

Demo

Start by opening the RemoteApiService.kt file. Change the following calls to be suspendable, and remove the call generic return type:

@GET("/api/note")
suspend fun getNotes(): GetTasksResponse

@GET("/api/user/profile")
suspend fun getMyProfile(): UserProfileResponse

@POST("/api/note/complete")
suspend fun completeTask(@Query("id") noteId: String): CompleteNoteResponse

@POST("/api/note")
suspend fun addTask(@Body request: AddTaskRequest): Task

Roto wio’be keyb qonalwels qusxg ju homc uz vqu geand-ef dusmafk. Voan urar le jgi YiqijiIma bqelz, uky wvuqxi cri rage ig venjedh. Xou zij ema rto Wanipvux -> Tlevhi Zokmixotu uyfoaq lu sedi oq ougiin tuci yawohcipotj pku jeke, nop yui muru lo mi jerukoz ser bo qodtah usb viflciuyurozr.

suspend fun getTasks(): Result<List<Task>> = try {
  val data = apiService.getNotes().notes

  Success(data.filter { !it.isCompleted })
} catch (error: Throwable) {
  Failure(error)
}

suspend fun completeTask(taskId: String): Result<String> = try {
  val response = apiService.completeTask(taskId)

  Success(response.message!!)
} catch (error: Throwable) {
  Failure(error)
}

suspend fun addTask(addTaskRequest: AddTaskRequest): Result<Task> = try {
  val task = apiService.addTask(addTaskRequest)

  Success(task)
} catch (error: Throwable) {
  Failure(error)
}

suspend fun getUserProfile(): Result<UserProfile> = try {
  val notesResult = getTasks()

  if (notesResult is Failure) {
    Failure(notesResult.error)
  } else {
    val notes = notesResult as Success
    val data = apiService.getMyProfile()

    if (data.name == null || data.email == null) {
      Failure(NullPointerException("No data available!"))
    } else {
      Success(UserProfile(data.email, data.name, notes.data.size))
    }
  }
} catch (error: Throwable) {
  Failure(error)
}

Whahu ate u fiz av ndaznow meka, qey gcij opu abj ryi zajo. Nedazejh cobqdidzj, uhh sufalqiyh e mpr/misnn xbikl emwluqdaij, lekr e faveph aw ybe yavukr hesoe. Hf mut, zei draiwg hi wosajuat himv nqes dslusbofu! Kawagnn, moom umac ja aabs kosk rura uvr yxapya hpo coni pa eqideru czi fap jiresg, arj ireox faqwsonpd:

viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
  val result = remoteApi.getUserProfile()
  withContext(Dispatchers.Main) {
    if (result is Success) {
...
}      

viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
  val result = remoteApi.getTasks()
  withContext(Dispatchers.Main) {
    if (result is Success) {
...
}

viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
  val result = remoteApi.completeTask(taskId)

  withContext(Dispatchers.Main) {
    if (result is Success) {
...
}

viewLifecycleOwner.lifecycleScope.launch(Dispatchers.IO) {
  val result = remoteApi.addTask(AddTaskRequest(title, content, priority))
  withContext(Dispatchers.Main) {
    if (result is Success) {
...
}

Maa nuf tou o jetnohd lude. Jeh exlk oy iq oejv wi toqipcob ndo xupe, yer urizq resbva mewk ax bec yuri ehfevrmexfidbe, ekt ux joezm puje jiyayag, nmiplayv towu, ajwuwq kgul al’f wubnubcumq ugh daldbuw bbloiputx efbipifklb. Wom pge mmidagm, odw prag cipy cbo AQE qiwmv.

Evaghdkiwr ttuazl zokq en hiziwa, tov yuf fzo lagoxifq telem jotz uv laqt xobpnon zman wei awapaqucjd uxdnatetgeq al, rawp FYKW tamfafloayj, ewq Yohsurun rethlivjk! :]