STTP的基本使用方法是什么

  val erA: Either[String, Int] = Right(1)  val erB: Either[String, Int] = Right(2)  val erC: Either[String, Int] = Right(3)  val elA: Either[String, Int] = Left("error1")  val elB: Either[String, Int] = Left("error2")  val listOfEither = List(erA, elA, erB, erC, elB)  privateval eitherOfList: Either[String, List[Int]] = listOfEither.foldLeft(Right[String, List[Int]](List()).asInstanceOf[Either[String, List[Int]]])((acc, elem) => {    elem match {      case Right(v) => acc.map(l => l :+ v)      case Left(e) => acc.left.map(_ + e)    }  })  println(s"eitherOfList: $eitherOfList")

eitherOfList: Right(List(1, 2, 3))

  import io.circe.generic.auto._  import sttp.client._  import sttp.client.akkahttp.AkkaHttpBackend  import sttp.client.circe._
  import scala.concurrent.Future  import scala.concurrent.duration._  import scala.concurrent.Await  import scala.concurrent.ExecutionContext.Implicits.global
  val NASA_API_KEY = "XXXXXXXXXXXXXXX"  val baseUrl = s"https://api.nasa.gov/neo/rest/v1/neo/browse?api_key=${NASA_API_KEY}"
  var pageSize = 10  var pageNumb = 100
  case class Links(self: String, next: String)  case class Page(number: Int, size: Int, total_elements: Int, total_pages: Int)  case class NearEarthObject(absolute_magnitude_h: Double, designation: String)  case class NasaData(links: Links, page: Page, near_earth_objects: List[NearEarthObject])
  implicit val sttpBackend = AkkaHttpBackend()    val listOfFutureResult: List[Future[Response[Either[ResponseError[io.circe.Error], NasaData]]]] =    (0 until pageNumb).toList.map(pageIndex => {      val pageUrl = s"http://www.neowsapp.com/rest/v1/neo/browse?page=$pageIndex&size=$pageSize&api_key=${NASA_API_KEY}"      basicRequest.get(uri"$pageUrl")        .response(asJson[NasaData])        .send()    })
  // Note: Future[List] --> List[Future]  val futureOfList: Future[List[Response[Either[ResponseError[io.circe.Error], NasaData]]]] = Future.sequence(listOfFutureResult)
  // Note: 把Response[Either[ResponseError[io.circe.Error], NasaData]] 转为了 Either[Throwable, NasaData]  val respOfEither2Either: Response[Either[ResponseError[io.circe.Error], NasaData]] => Either[Throwable, NasaData] = resp => {    println(s"resp==>  code:${resp.code.code}  ${resp.statusText}")    val newEither: Either[Throwable, NasaData] = resp.body match {      case Left(respErr) => Left(respErr.getCause)      case Right(nasaData) => Right(nasaData)    }    newEither  }
  val futureOfListOfEither: Future[List[Either[Throwable, NasaData]]] = futureOfList.map(listOfResp => {    listOfResp.map(respOfEither2Either)  })
  val listOfEither2TupleOfList: List[Either[Throwable, NasaData]] => (List[Throwable], List[NasaData]) = listE => {    listE.foldLeft(List[Throwable](), List[NasaData]())((acc, eData) => {      eData match {        case Right(nasaData) => (acc._1, acc._2 :+ nasaData)        case Left(t) => (acc._1 :+ t, acc._2)      }    })  }
  val futureOfTupleOfList = futureOfListOfEither map listOfEither2TupleOfList
  val result = Await.result(futureOfTupleOfList, 1.minute)  println(s"Exceptions in Response: $result._1")  println(s"Data in Response: $result._2")  

akka.http.host-connection-pool.max-open-requests = 128