refactor: hide BASE_URL

Author: giovannijunseokim

app/build.gradle.kts

@@ -1,3 +1,5 @@
+import java.util.Properties
+
 plugins {
     id("kotlin-kapt")
     alias(libs.plugins.android.application)
@@ -6,6 +8,14 @@ plugins {
     alias(libs.plugins.serialization)
 }
 
+private val localProperties =
+    Properties().apply {
+        val localFile = rootProject.file("local.properties")
+        if (localFile.exists()) {
+            load(localFile.inputStream())
+        }
+    }
+
 android {
     namespace = "woowacourse.shopping"
     compileSdk = 35
@@ -25,6 +35,7 @@ android {
     buildTypes {
         debug {
             buildConfigField("boolean", "DEBUG", "true")
+            buildConfigField("String", "BASE_URL", localProperties["base.url"].toString())
         }
         release {
             isMinifyEnabled = false
@@ -33,6 +44,7 @@ android {
                 "proguard-rules.pro",
             )
             buildConfigField("boolean", "DEBUG", "false")
+            buildConfigField("String", "BASE_URL", localProperties["base.url"].toString())
         }
     }
     compileOptions {

app/src/main/java/woowacourse/shopping/data/API.kt

@@ -20,7 +20,7 @@ object API {
     private val retrofit =
         Retrofit
             .Builder()
-            .baseUrl("http://techcourse-lv2-alb-974870821.ap-northeast-2.elb.amazonaws.com")
+            .baseUrl(BuildConfig.BASE_URL)
             .client(client)
             .addConverterFactory(Json.asConverterFactory("application/json".toMediaType()))
             .build()

app/src/main/java/woowacourse/shopping/data/ProductsHttpClient.kt

@@ -17,7 +17,7 @@ import woowacourse.shopping.data.product.dto.ProductsResponse
 import java.util.Base64
 
 class ProductsHttpClient(
-    private val baseUrl: String = "http://techcourse-lv2-alb-974870821.ap-northeast-2.elb.amazonaws.com",
+    private val baseUrl: String = BuildConfig.BASE_URL,
 ) {
     fun getCart(
         page: Int,