Scala hello world web api with http4s

scalaVersion := "2.13.6" // Also supports 2.12.x

val http4sVersion = "0.23.1"

// Only necessary for SNAPSHOT releases
resolvers += Resolver.sonatypeRepo("snapshots")

libraryDependencies ++= Seq(
  "org.http4s" %% "http4s-dsl" % http4sVersion,
  "org.http4s" %% "http4s-blaze-server" % http4sVersion,
  "org.http4s" %% "http4s-blaze-client" % http4sVersion
)

package bkr.joker.webapi

import cats.effect._
import org.http4s.blaze.server._
import scala.concurrent.ExecutionContext.global

// import cats.effect._
import org.http4s.HttpRoutes
import org.http4s.dsl.io._
import org.http4s.implicits._

object Server extends IOApp {

  def plot(name: String, lastname: String): String = {
    s"All work and no play makes $name $lastname a dull boy."
  }

  val routes = HttpRoutes.of[IO] {
    case GET -> Root / "health" =>
      Ok("I'm here")
    case GET -> Root / "plot" / name / lastname =>
      Ok(plot(name, lastname))
  }.orNotFound

  def run(args: List[String]): IO[ExitCode] =
    BlazeServerBuilder[IO](global)
      .bindHttp(8080, "localhost")
      .withHttpApp(routes)
      .serve
      .compile
      .drain
      .as(ExitCode.Success)
}