How to HTTP request by POST method with Kotlin [duplicate]

Answer 1

Here I'm posting my code

Async Task Function

    inner class GetAsyncTask : AsyncTask() {

        override fun onPreExecute() {
            // Before doInBackground
        }

        override fun doInBackground(vararg urls: String?): String {
            var urlConnection: HttpURLConnection? = null

            try {
                val url = URL(urls[0])

                urlConnection = url.openConnection() as HttpURLConnection


                var inString = streamToString(urlConnection.inputStream)

                publishProgress(inString)
            } catch (ex: Exception) {

            } finally {
                if (urlConnection != null) {
                    urlConnection.disconnect()
                }
            }

            return " "
        }

        override fun onProgressUpdate(vararg values: String?) {
            try {
                var json = JSONObject(values[0])

                val query = json.getJSONObject("query")
                val results = query.getJSONObject("results")
                val channel = results.getJSONObject("channel")

                val location = channel.getJSONObject("location")
                val city = location.get("city")
                val country = location.get("country")

                val humidity = channel.getJSONObject("atmosphere").get("humidity")
            val condition = channel.getJSONObject("item").getJSONObject("condition")
            val temp = condition.get("temp")
            val text = condition.get("text")

            tvWeatherInfo.text =
                    "Location: " + city + " - " + country + "\n" +
                            "Humidity: " + humidity + "\n" +
                            "Temperature: " + temp + "\n" +
                            "Status: " + text

        } catch (ex: Exception) {

        }
    }

    override fun onPostExecute(result: String?) {
        // Done
    }


}

streamToString

fun streamToString(inputStream: InputStream): String {

    val bufferReader = BufferedReader(InputStreamReader(inputStream))
    var line: String
    var result = ""

    try {
        do {
            line = bufferReader.readLine()
            if (line != null) {
                result += line
            }
        } while (line != null)
        inputStream.close()
    } catch (ex: Exception) {

    }

    return result
}