HTTP requests using Kotlin and a built-in java.net.URL class

test-request.kt

package org.icerealm.examples

import java.net.HttpURLConnection
import java.net.URL

fun main() {
    val url = URL("https://postman-echo.com/status/403")
    val con: HttpURLConnection = url.openConnection() as HttpURLConnection
    con.requestMethod = "GET"
    con.connectTimeout = 10*1000
    con.readTimeout = 30*1000
    con.doOutput = true
    con.addRequestProperty("User-Agent", "Rawr/1.0")

    val status = con.responseCode
    val statusMsg = con.responseMessage
    val headers = con.headerFields

    val contentType = con.contentType
    val body = String(con.inputStream.readAllBytes())

    print("DONE")  // set a breakpoint here to study this
}