Scala Tone Checker

This example uses the HTTP client included with Java 11 and newer.

import java.net.URI
import java.net.http.{HttpClient, HttpRequest, HttpResponse}

object Main {
  def main(args: Array[String]): Unit = {
    val apiKey = Option(System.getenv("SAPLING_API_KEY"))
      .filter(_.nonEmpty)
      .getOrElse(throw new IllegalStateException("Set SAPLING_API_KEY first."))

    val payload =
      """{
        |  "text": "Really stoked about this! Will it be ready by next week?"
        |}""".stripMargin

    val request = HttpRequest.newBuilder()
      .uri(URI.create("https://api.sapling.ai/api/v1/tone"))
      .header("Authorization", s"Bearer $apiKey")
      .header("Content-Type", "application/json")
      .POST(HttpRequest.BodyPublishers.ofString(payload))
      .build()

    val response = HttpClient.newHttpClient().send(
      request,
      HttpResponse.BodyHandlers.ofString()
    )

    if (response.statusCode() < 200 || response.statusCode() >= 300) {
      throw new IllegalStateException(
        s"Sapling API error ${response.statusCode()}: ${response.body()}"
      )
    }
    println(response.body())
  }
}