6주차 미션 / 안드로이드 1조 정일혁

.kotlin/errors/errors-1762482068299.log

@@ -0,0 +1,4 @@
+kotlin version: 2.0.21
+error message: The daemon has terminated unexpectedly on startup attempt #1 with error code: 0. The daemon process output:
+    1. Kotlin compile daemon is ready
+

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "java.configuration.updateBuildConfiguration": "automatic"
+}

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 +20,13 @@ 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 +47,7 @@ android {
     }
     buildFeatures {
         compose = true
+        buildConfig = true
     }
 }
 
@@ -74,4 +84,10 @@ 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.kotlinx.serialization)
+    implementation(libs.okhttp)
+    implementation(libs.okhttp.logging.interceptor)
 }

app/src/main/java/com/example/kuit6_android_api/MainActivity.kt

@@ -8,9 +8,14 @@ import android.widget.Toast
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Surface
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.core.content.ContextCompat
 import androidx.navigation.compose.rememberNavController
@@ -40,15 +45,23 @@ class MainActivity : ComponentActivity() {
 
         setContent {
             KUIT6_Android_APITheme {
-                Surface(
-                    modifier = Modifier.fillMaxSize(),
-                    color = MaterialTheme.colorScheme.background
+                val snackBarState = remember { SnackbarHostState() }
+                Scaffold(
+                    modifier = Modifier
+                        .fillMaxSize()
+                        .background(
+                            MaterialTheme.colorScheme.background
+                        ),
+                    snackbarHost = {
+                        SnackbarHost(hostState = snackBarState)
+                    }
                 ) {
                     val navController = rememberNavController()
 
                     NavGraph(
                         navController = navController,
-                        startDestination = PostListRoute
+                        startDestination = PostListRoute,
+                        snackBarState = snackBarState
                     )
                 }
             }
@@ -71,6 +84,7 @@ class MainActivity : ComponentActivity() {
             ) == PackageManager.PERMISSION_GRANTED -> {
                 // 이미 권한이 있음
             }
+
             shouldShowRequestPermissionRationale(permission) -> {
                 // 권한 거부 이력이 있음 - 설명 표시 후 재요청
                 Toast.makeText(
@@ -80,6 +94,7 @@ class MainActivity : ComponentActivity() {
                 ).show()
                 requestPermissionLauncher.launch(permission)
             }
+
             else -> {
                 // 권한 요청
                 requestPermissionLauncher.launch(permission)

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

@@ -0,0 +1,54 @@
+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 okhttp3.MultipartBody
+import retrofit2.http.Body
+import retrofit2.http.DELETE
+import retrofit2.http.GET
+import retrofit2.http.Multipart
+import retrofit2.http.POST
+import retrofit2.http.PUT
+import retrofit2.http.Part
+import retrofit2.http.Path
+import retrofit2.http.Query
+
+interface ApiService {
+    // 게시글 목록 조회
+    @GET("/api/posts")
+    suspend fun getPosts(): BaseResponse<List<PostResponse>>
+
+    // 게시글 생성
+    @POST("/api/posts")
+    suspend fun createPost(
+        @Query("author") author: String = "규빈",
+        @Body request: PostCreateRequest
+    ): BaseResponse<PostResponse>
+
+    // 게시글 상세 조회
+    @GET("/api/posts/{id}")
+    suspend fun getPostDetail(
+        @Path("id") id: Long
+    ): BaseResponse<PostResponse>
+
+    // 게시글 수정
+    @PUT("/api/posts/{id}")
+    suspend fun updatePost(
+        @Path("id") id: Long,
+        @Body request: PostCreateRequest
+    ): BaseResponse<PostResponse>
+
+    // 게시글 삭제
+    @DELETE("/api/posts/{id}")
+    suspend fun deletePost(
+        @Path("id") id: Long
+    ): BaseResponse<Unit>
+
+    // 이미지 업로드
+    @Multipart
+    @POST("/api/images/upload")
+    suspend fun uploadImage(
+        @Part file: MultipartBody.Part
+    ): BaseResponse<Map<String, String>>
+}

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

@@ -0,0 +1,36 @@
+package com.example.kuit6_android_api.data.api
+
+import com.example.kuit6_android_api.BuildConfig
+import kotlinx.serialization.json.Json
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.OkHttpClient
+import okhttp3.logging.HttpLoggingInterceptor
+import retrofit2.Retrofit
+import retrofit2.converter.kotlinx.serialization.asConverterFactory
+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 json = Json {
+        ignoreUnknownKeys = true  // 서버에서 추가 필드가 와도 무시
+        coerceInputValues = true   // null이 와야 할 곳에 다른 값이 와도 처리
+    }
+
+    private val retrofit: Retrofit = Retrofit.Builder()
+        .baseUrl(BuildConfig.BASE_URL)
+        .client(okHttpClient)
+        .addConverterFactory(json.asConverterFactory("application/json".toMediaType()))
+        .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
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class PostCreateRequest(
+    @SerialName("title") val title: String,
+    @SerialName("content") val content: String,
+    @SerialName("imageUrl") val imageUrl: String?
+)

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

@@ -0,0 +1,11 @@
+package com.example.kuit6_android_api.data.model.response
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class AuthorResponse(
+    @SerialName("id") val id: Long,
+    @SerialName("username") val username: String,
+    @SerialName("profileImageUrl") val profileImageUrl: String?
+)