5주차 미션 / 안드로이드 2조 정지훈

app/build.gradle.kts

@@ -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"
 
+        val properties = Properties()
+        val localPropertiesFile = rootProject.file("local.properties")
+        if (localPropertiesFile.exists()) {
+            properties.load(localPropertiesFile.inputStream())
+        }
+        val baseUrl = properties.getProperty("BASE_URL")
+        buildConfigField("String", "BASE_URL", "\"$baseUrl\"")
+
     }
 
     buildTypes {
@@ -38,6 +48,7 @@ android {
     }
     buildFeatures {
         compose = true
+        buildConfig = true
     }
 }
 
@@ -74,4 +85,12 @@ dependencies {
     androidTestImplementation(libs.androidx.espresso.core)
     debugImplementation(libs.androidx.compose.ui.tooling)
     debugImplementation(libs.androidx.compose.ui.test.manifest)
+
+
+    // Retrofit & OkHttp
+    implementation(libs.retrofit)
+    implementation(libs.retrofit.converter.gson)
+    implementation(libs.okhttp)
+    implementation(libs.okhttp.logging.interceptor)
+
 }

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

@@ -0,0 +1,40 @@
+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.DELETE
+import retrofit2.http.GET
+import retrofit2.http.POST
+import retrofit2.http.PUT
+import retrofit2.http.Path
+import retrofit2.http.Query
+
+interface ApiService {
+
+    @GET("api/posts")
+    suspend fun getPosts(): BaseResponse<List<PostResponse>>
+
+    @GET("api/posts/{id}")
+    suspend fun getPostDetail(
+        @Path("id") id: Long
+    ): BaseResponse<PostResponse>
+
+    @POST("api/posts")
+    suspend fun createPost(
+        @Query("author") author: String = "규빈",
+        @Body request: PostCreateRequest
+    ): BaseResponse<PostResponse>
+
+    @PUT("api/posts/{id}")
+    suspend fun updatePost(
+        @Path("id") id: Long,
+        @Body request: PostCreateRequest
+    ): BaseResponse<PostResponse>
+
+    @DELETE("api/posts/{id}")
+    suspend fun deletePost(
+        @Path("id") id: Long
+    ): BaseResponse<Unit>
+}

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

@@ -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/model/request/PostCreateRequest.kt

@@ -0,0 +1,11 @@
+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/model/response/AuthorResponse.kt

@@ -0,0 +1,10 @@
+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/response/BaseResponse.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/response/PostResponse.kt

@@ -0,0 +1,14 @@
+package com.example.kuit6_android_api.data.model.response
+
+import kotlinx.serialization.SerialName
+
+data class PostResponse(
+    @SerialName(value = "id") val id: Long,
+    @SerialName(value = "title")val title: String,
+    @SerialName(value = "content")val content: String,
+    @SerialName(value = "imageUrl")val imageUrl: String?,
+    @SerialName(value = "author")val author: AuthorResponse,
+    @SerialName(value = "createdAt")val createdAt: String,
+    @SerialName(value = "updatedAt")val updatedAt: String
+
+)

app/src/main/java/com/example/kuit6_android_api/ui/post/component/PostItem.kt

@@ -29,13 +29,13 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import coil.compose.AsyncImage
-import com.example.kuit6_android_api.data.model.Author
-import com.example.kuit6_android_api.data.model.Post
+import com.example.kuit6_android_api.data.model.response.AuthorResponse
+import com.example.kuit6_android_api.data.model.response.PostResponse
 import com.example.kuit6_android_api.util.formatDateTime
 
 @Composable
 fun PostItem(
-    post: Post,
+    post: PostResponse,
     onClick: () -> Unit
 ) {
     Card(
@@ -153,12 +153,12 @@ fun PostItem(
 fun PostItemPreview() {
     MaterialTheme {
         PostItem(
-            post = Post(
+            post = PostResponse(
                 id = 1,
                 title = "샘플 게시글 제목",
-                content = "이것은 샘플 게시글 내용입니다. 미리보기에서는 두 줄까지만 표시됩니다.",
+                content = "이것은 샘플 게시글 앙. 미리보기에서는 두 줄까지만 표시됩니다.",
                 imageUrl = null,
-                author = Author(1, "testuser", null),
+                author = AuthorResponse(1, "testuser", null),
                 createdAt = "2025-10-03T12:00:00",
                 updatedAt = "2025-10-03T12:00:00"
             ),

app/src/main/java/com/example/kuit6_android_api/ui/post/screen/PostCreateScreen.kt

@@ -187,7 +187,7 @@ fun PostCreateScreen(
 
             Button(
                 onClick = {
-                    val finalAuthor = author.ifBlank { "anonymous" }
+                    val finalAuthor = author
                     viewModel.createPost(finalAuthor, title, content, null) {
                         onPostCreated()
                     }