fun main() {

    Database().load("https://jsonplaceholder.typicode.com/users/1", object : Callback {
        override fun onLoadData(result: String) {
            println(result)
        }
    })
}


/*
*  Callback using via interface
* */
interface Callback{
    fun onLoadData(result: String)
}

class Database {
    fun load(link: String, callback: Callback) {
        val result = RequestHelper.getData(link)
        callback.onLoadData(result)
    }
}