使用Kotlin协程使用Retrofit2进行错误处理

implementation 'com.squareup.retrofit2:retrofit:2.x.x'
implementation 'com.squareup.retrofit2:converter-gson:2.x.x'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:x.x.x'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:x.x.x'

val retrofit = Retrofit.Builder()
    .baseUrl("https://api.example.com/")
    .addConverterFactory(GsonConverterFactory.create())
    .build()

interface ApiService {
    @GET("users/{userId}")
    suspend fun getUser(@Path("userId") userId: String): User
}

val scope = CoroutineScope(Dispatchers.Main)

scope.launch {
    try {
        val apiService = retrofit.create(ApiService::class.java)
        val user = apiService.getUser("123")
        // 处理成功响应
    } catch (e: Exception) {
        // 处理异常
    }
}