如何在Kotlin中创建异步post请求？

import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.features.json.*
import io.ktor.client.request.*
import io.ktor.client.statement.*
import io.ktor.http.*
import kotlinx.coroutines.*

val client = HttpClient(CIO) {
    install(JsonFeature) {
        serializer = GsonSerializer()
    }
}

suspend fun main() {
    val url = "https://your-api-endpoint.com/data"
    val data = """{"key":"value"}""" // 替换为你的数据

    try {
        val response: HttpResponse = client.post(url) {
            contentType(ContentType.Application.Json)
            body = data
        }
        println("Response status: ${response.status}")
        println("Response body: ${response.readText()}")
    } catch (e: Exception) {
        println("Request failed: ${e.message}")
    } finally {
        client.close()
    }
}