Add retrofit service and remove activity main

app/src/main/java/com/navi/medici/android_customer_app/api/RetrofitService.kt

@@ -0,0 +1,11 @@
+package com.navi.medici.android_customer_app.api
+
+import retrofit2.Converter
+import retrofit2.Retrofit
+
+object RetrofitService {
+    fun build(baseURL: String, converterFactory: Converter.Factory): Retrofit {
+        val retrofitBuilder = Retrofit.Builder().baseUrl(baseURL)
+        return retrofitBuilder.addConverterFactory(converterFactory).build()
+    }
+}

app/src/main/java/com/navi/medici/android_customer_app/api/SafeApiRequest.kt

@@ -1,4 +1,4 @@
-package com.navi.medici.android_customer_app
+package com.navi.medici.android_customer_app.api
 
 import retrofit2.Response
 import java.io.IOException

app/src/main/java/com/navi/medici/android_customer_app/login/LoginApi.kt

@@ -1,17 +1,12 @@
 package com.navi.medici.android_customer_app.login
 
+import com.navi.medici.android_customer_app.api.RetrofitService
 import retrofit2.Response
-import retrofit2.Retrofit
 import retrofit2.converter.gson.GsonConverterFactory
 import retrofit2.http.GET
 
 private const val BASE_URL = "https://jsonplaceholder.typicode.com/"
-
-private val retrofit = Retrofit
-    .Builder()
-    .addConverterFactory(GsonConverterFactory.create())
-    .baseUrl(BASE_URL)
-    .build()
+private val gsonConverterFactory = GsonConverterFactory.create()
 
 interface LoginApi {
     @GET("posts/1")
@@ -19,7 +14,8 @@ interface LoginApi {
 
     companion object {
         operator fun invoke(): LoginApi {
-            return retrofit.create(LoginApi::class.java)
+            return RetrofitService.build(BASE_URL, gsonConverterFactory)
+                .create(LoginApi::class.java)
         }
     }
 }

app/src/main/java/com/navi/medici/android_customer_app/login/LoginRepository.kt

@@ -1,6 +1,6 @@
 package com.navi.medici.android_customer_app.login
 
-import com.navi.medici.android_customer_app.SafeApiRequest
+import com.navi.medici.android_customer_app.api.SafeApiRequest
 
 class LoginRepository(private val loginApi: LoginApi) : SafeApiRequest() {
     suspend fun submitPhoneNumber(phoneNumber: String) = apiRequest { loginApi.submitPhoneNumber() }

app/src/main/java/com/navi/medici/android_customer_app/login/LoginResponse.kt

@@ -1,8 +1,8 @@
 package com.navi.medici.android_customer_app.login
 
 data class LoginResponse(
-    val id: Int,
-    val title: String,
-    val body: String,
-    val userId: Int
+    val id: Int?,
+    val title: String?,
+    val body: String?,
+    val userId: Int?
 )

app/src/main/res/layout/activity_main.xml

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".MainActivity">
-
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>