using random.org random generator to generate true random number / published by https://github.com/dacr/code-examples-manager #a79f4f26-80a8-413a-a363-8dbaf3e12267/31a9d62e39194064ee09120269c204e968c91886

rng-random-org.sc

// summary : using random.org random generator to generate true random number
// keywords : scala, random, rng
// publish : gist
// authors : David Crosson
// license : Apache License Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0.txt)
// id : a79f4f26-80a8-413a-a363-8dbaf3e12267
// created-on : 2021-06-23T14:09:23+02:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala "3.4.2"
//> using dep "com.lihaoyi::requests:0.8.0"
//> using dep "com.lihaoyi::upickle:3.1.3"
// ---------------------

import ujson.Obj, scala.util.Properties.envOrNone

envOrNone("RANDOM_ORG_API_KEY") match {
  case None      => println("Signup to random.org, create an api key or reuse an existing one - https://api.random.org/dashboard")
  case Some(key) =>
    val api      = "https://api.random.org/json-rpc/4/invoke"
    val query    = Obj(
      "jsonrpc" -> "2.0",
      "method"  -> "generateIntegers",
      "id"      -> 42,
      "params"  -> Obj(
        "apiKey"      -> key,
        "n"           -> 1,
        "min"         -> 0,
        "max"         -> 999,
        "n"           -> 5,
        "replacement" -> false  // for distinct values
      )
    )
    val response = requests.post(api, data = query)
    println(response.text())
  //println(upickle.default.read[Response](response.text()))
}