web services - HTTP GET request in kotlin

I needed an example of an HTTP GET request in kotlin. I have a database and I already did the API to go fetch the information to the server.
As a final result I need to present the API json in the android layout inside a'editText '.
suggestions? I already have this code:

fun fetchJson(){

    val url = "http://localhost:8080/matematica3/naoAutomatica/get"


    val request = Request.Builder().url(url).build()

    val client = OkHttpClient()

    client.newCall(request).enqueue(object : Callback {

        override fun onResponse(call: Call?, response: Response?) {
            val body = response?.body()?.string()
            println(body)

        }

        override fun onFailure(call: Call?, e: IOException?) {
            println("Falhou")
        }

    }

}

Answer

Create an EditText member variable so that you can then access it in your Callback functions

eg.

var editText: EditText? = null

initialize this in the onCreate of your activity

editText = findViewById(R.id.editText)

the set text in your call back like so

client.newCall(request).enqueue(object : Callback {
    override fun onFailure(call: Call?, e: IOException?) {
        println("${e?.message}")
    }


    override fun onResponse(call: Call?, response: Response?) {
        val body = response?.body()?.string()
        println(body)

        editText?.text = "${body.toString()}" \\ or whatever else you wanna set on the edit text
    }
})