feat: Retrofit, API 통신 초기 설정

Author: 1hyok

.idea/gradle.xml

@@ -1,3 +1,5 @@
+import java.util.Properties
+
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
@@ -18,6 +20,14 @@ android {
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 
+        // defaultConfig 블록 안에 추가
+        val properties = Properties()
+        val localPropertiesFile = rootProject.file("local.properties")
+        if (localPropertiesFile.exists()) {
+            properties.load(localPropertiesFile.inputStream())
+        }
+        val baseUrl = properties.getProperty("BASE_URL") ?: "http://10.0.2.2:8080/"
+        buildConfigField("String", "BASE_URL", "\"$baseUrl\"")
     }
 
     buildTypes {
@@ -38,6 +48,7 @@ android {
     }
     buildFeatures {
         compose = true
+        buildConfig = true
     }
 }
 
@@ -74,4 +85,9 @@ dependencies {
     androidTestImplementation(libs.androidx.espresso.core)
     debugImplementation(libs.androidx.compose.ui.tooling)
     debugImplementation(libs.androidx.compose.ui.test.manifest)
+
+    implementation(libs.retrofit)
+    implementation(libs.retrofit.converter.gson)
+    implementation(libs.okhttp)
+    implementation(libs.okhttp.logging.interceptor)
 }

.idea/markdown.xml

@@ -0,0 +1,21 @@
+package com.example.kuit6_android_api.data.api
+
+import com.example.kuit6_android_api.data.model.request.PostCreateRequest
+import com.example.kuit6_android_api.data.model.response.BaseResponse
+import com.example.kuit6_android_api.data.model.response.PostResponse
+import retrofit2.http.Body
+import retrofit2.http.GET
+import retrofit2.http.POST
+import retrofit2.http.Query
+
+
+interface ApiService {
+    @GET(value = "/api/posts")
+    suspend fun getPosts(): BaseResponse<List<PostResponse>>
+
+    @POST(value="/api/posts")
+    suspend fun createPost(
+        @Query(value = "author") author: String = "일혁",
+        @Body request: PostCreateRequest
+    ): BaseResponse<PostResponse>
+}

app/build.gradle.kts

@@ -0,0 +1,30 @@
+package com.example.kuit6_android_api.data.api
+
+
+import com.example.kuit6_android_api.BuildConfig
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import java.util.concurrent.TimeUnit
+
+object RetrofitClient {
+    private val loggingInterceptor = HttpLoggingInterceptor().apply {
+        level = HttpLoggingInterceptor.Level.BODY
+    }
+
+    private val okHttpClient = OkHttpClient.Builder()
+        .addInterceptor(loggingInterceptor)
+        .connectTimeout(30, TimeUnit.SECONDS)
+        .readTimeout(30, TimeUnit.SECONDS)
+        .writeTimeout(30, TimeUnit.SECONDS)
+        .build()
+
+    private val retrofit: Retrofit = Retrofit.Builder()
+        .baseUrl(BuildConfig.BASE_URL)
+        .client(okHttpClient)
+        .addConverterFactory(GsonConverterFactory.create())
+        .build()
+
+    val apiService: ApiService = retrofit.create(ApiService::class.java)
+}

app/src/main/java/com/example/kuit6_android_api/data/api/ApiService.kt

@@ -0,0 +1,9 @@
+package com.example.kuit6_android_api.data.model.request
+
+import kotlinx.serialization.SerialName
+
+data class PostCreateRequest(
+    @SerialName(value = "title") val title: String,
+    @SerialName(value = "content") val content: String,
+    @SerialName(value = "imageUrl") val imageUrl: String?
+)

app/src/main/java/com/example/kuit6_android_api/data/api/RetrofitClient.kt

@@ -0,0 +1,9 @@
+package com.example.kuit6_android_api.data.model.response
+
+import kotlinx.serialization.SerialName
+
+data class AuthorResponse(
+    @SerialName(value="id") val id: Long,
+    @SerialName(value="username") val username: String,
+    @SerialName(value="profileImageUrl") val profileImageUrl: String?
+)

app/src/main/java/com/example/kuit6_android_api/data/model/Post.kt

@@ -0,0 +1,10 @@
+package com.example.kuit6_android_api.data.model.response
+
+import kotlinx.serialization.SerialName
+
+data class BaseResponse<T>(
+    @SerialName(value = "success") val success: Boolean,
+    @SerialName(value = "message") val message: String?,
+    @SerialName(value = "data") val data: T?,
+    @SerialName(value = "timestamp") val timestamp: String
+)

app/src/main/java/com/example/kuit6_android_api/data/model/request/PostCreateRequest.kt

@@ -0,0 +1,13 @@
+package com.example.kuit6_android_api.data.model.response
+
+import com.google.gson.annotations.SerializedName
+
+data class PostResponse(
+    @SerializedName(value="id") val id:Long,
+    @SerializedName(value="title") val title:String,
+    @SerializedName(value="content") val content:String,
+    @SerializedName(value="imageUrl") val imageUrl:String?,
+    @SerializedName(value="author") val author: AuthorResponse,
+    @SerializedName(value="createdAt") val createdAt:String,
+    @SerializedName(value="updatedAt") val updatedAt:String
+)