generate a random loto play using random.org random generator / published by https://github.com/dacr/code-examples-manager #e6341c73-bbfc-4c53-b340-41b88bb0ec3c/88f858879a04e30bf2c170b0169d8f77e295aa09

loto-random-org-generator.sc

// summary : generate a random loto play using random.org random generator
// keywords : scala, loto, random, rng, random-org, fdj, @testable
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : e6341c73-bbfc-4c53-b340-41b88bb0ec3c
// created-on : 2021-06-23T14:09:23+02:00
// run-with : scala-cli $file

// ---------------------
//> using scala "3.4.2"
//> using dep "com.lihaoyi::requests:0.8.0"
//> using dep "com.lihaoyi::upickle:3.1.0"
// ---------------------

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

import upickle.default.ReadWriter

case class Random(data: List[Int]) derives ReadWriter
case class Result(random: Random) derives ReadWriter
case class Response(jsonrpc: String, result: Result) derives ReadWriter

def generate(key: String, count: Int, first: Int, last: Int): List[Int] = {
  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"           -> count,
      "min"         -> first,
      "max"         -> last,
      "n"           -> count,
      "replacement" -> false // for distinct values
    )
  )
  val response = requests.post(api, data = query)
  // println(response.text())
  upickle.default.read[Response](response.text()).result.random.data
}

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) =>
    println(generate(key, 5, 1, 49).sorted.mkString(","))
    println(generate(key, 1, 1, 10).sorted.mkString(","))
}