Scala Response类代码示例

//设置package包名称以及导入依赖的类
package foobar

import foobar.page.{Contact, Index}
import org.http4s.MediaType.`text/html`
import org.http4s.dsl._
import org.http4s.headers.`Content-Type`
import org.http4s.server.ServerApp
import org.http4s.server.blaze._
import org.http4s.{HttpService, Response, StaticFile}

import scala.io.Source
import scala.util.Try
import scalatags.Text.TypedTag
import scalaz.concurrent.Task

object Server extends ServerApp {

  def page(p: TypedTag[String]): Task[Response] =
    Ok(p.render).withContentType(Some(`Content-Type`(`text/html`)))

  val service = HttpService {
    case GET -> Root              => page(Index.page)
    case GET -> Root / "contact"  => page(Contact.page)
    case req @ GET -> Root / path =>
      println("file: " + Try(Source.fromFile(path).getLines().mkString))
      StaticFile.fromResource(path.toString, Some(req)).fold(NotFound())(Task.now)
  }

  def server(args: List[String]) =
    BlazeBuilder.bindHttp(8080)
      .mountService(service, "/")
      .start
} 

//设置package包名称以及导入依赖的类
package kafka.console
package service

import org.http4s.dsl._
import journal.Logger
import org.http4s.{Challenge, Response}

import scalaz.concurrent.Task

object errors {

  import exceptions._
  import logging._

  implicit def default(implicit log: Logger): ErrorHandler = {
    case unexpected =>
      log.warn(s"unexpected exception was thrown during the request execution: ${describe(unexpected)}")
      InternalServerError()
  }

  def authentication: ErrorHandler = {
    case authFail: AuthException =>
      Task.delay { Response(Unauthorized) }
  }

} 

//设置package包名称以及导入依赖的类
package com.github.hgiddens.ausms
package telstra

import JsonHelpers._
import io.circe.Json
import io.circe.syntax._
import org.http4s.{ Charset, MediaType, OAuth2BearerToken, Request, Response }
import org.http4s.client.{ Client, DisposableResponse }
import org.http4s.dsl._
import org.http4s.headers.{ Authorization, `Content-Type` }
import scalaz.Kleisli
import scalaz.concurrent.Task

private[telstra] object TestClient {
  val key = "key"
  val secret = "secret"
  val accessToken = "g85MslKJGuDIPhOklSgNLbWFPu5g"
  val messageId = "48E48E5EB8125001D6154CADFA19DA48"

  private val jsonContentType = `Content-Type`(MediaType.`application/json`, Some(Charset.`UTF-8`))

  private def perform(req: Request): Task[Response] =
    req match {
      case GET -> Root / "v1" / "oauth" / "token" =>
        Ok().withBody(Json.obj("access_token" -> accessToken.asJson, "expires_in" -> "3599".asJson))

      case POST -> Root / "v1" / "sms" / "messages" =>
        (req.headers, req.headers) match {
          case (Authorization(Authorization(OAuth2BearerToken(`accessToken`))), `Content-Type`(`jsonContentType`)) =>
            Accepted().withBody(Json.obj("messageId" -> messageId.asJson))
        }

      case GET -> Root / "v1" / "sms" / "messages" / `messageId` =>
        req.headers match {
          case Authorization(Authorization(OAuth2BearerToken(`accessToken`))) =>
            Ok().withBody(Json.obj(
              "to" -> "0400000000".asJson,
              "receivedTimestamp" -> "2015-02-05T14:10:14+11:00".asJson,
              "sentTimestamp" -> "2015-02-05T14:10:12+11:00".asJson,
              "status" -> "DELIVRD".asJson
            ))
        }
    }

  def client: Client =
    Client(Kleisli(perform _).map(new DisposableResponse(_, Task.now(()))), Task.now(()))
} 

//设置package包名称以及导入依赖的类
package fairshare.backend.project

import java.util.UUID

import argonaut.Argonaut._
import argonaut.Json
import org.http4s.argonaut._
import org.http4s.dsl._
import org.http4s.{ HttpService, Request, Response }
import fairshare.backend.util.RequestValidation._
import fairshare.backend.util.JsonHelpers._

import scalaz.concurrent.Task

class ProjectController(commandHandler: ProjectCommandHandler, queryHandler: ProjectQueryHandler) {
  def create(request: Request): Task[Response] = bindFromRequest(
    request,
    "name" -> nonEmptyString,
    "motto" -> nonEmptyString
  ) { (name, motto) =>
      val id = ProjectId(UUID.randomUUID())

      commandHandler.create(id, name, motto).flatMap(
        _.fold(
          error => InternalServerError(error),
          fact => Ok(Json("id" := fact.subject))
        )
      )
    }.fold(
      errs => BadRequest(errs.asJson),
      success => success
    )

  def index(request: Request): Task[Response] = {
    val projects = queryHandler.getAll

    Ok(projects.asJson)
  }

}

object ProjectController {
  def service(controller: ProjectController): HttpService = HttpService {
    case req @ GET -> Root / "index" => controller.index(req)

    case req @ POST -> Root / "create" => controller.create(req)
  }

} 

//设置package包名称以及导入依赖的类
package eve

import argonaut._, argonaut.Argonaut._, argonaut.ArgonautShapeless._
import java.lang.NumberFormatException
import org.http4s.{ Response, Uri }
import org.http4s.server.websocket._
import org.http4s.websocket.WebsocketBits._
import scalaz.stream.{Exchange, Process, Sink}
import scalaz.concurrent.Task
import scalaz._

import models._
import oauth._
import shared._
import eveapi._
import eveapi.oauth._
import eveapi.errors.EveApiError
import eveapi.utils.Decoders._

object WebSocket {
  def apply(process: Process[Task, EveApiError \/ FleetState]): Task[Response] = {
    val serverToClient: Process[Task, ServerToClient] = process.pipe(ApiStream.toClient.liftR[EveApiError]).map(_.fold(err => throw err, x => x))
    val websocketProtocol: Process[Task, Text] = serverToClient.map(m => Text(m.asJson.nospaces))
    val fromClient = ApiStream.fromClient.contramap[WebSocketFrame]({
      case Text(t, _) => Parse.decodeEither[ClientToServer](t).fold(err => throw new IllegalArgumentException(s"Invalid json: $t"), x => x)
      case x => throw new IllegalArgumentException(s"Unexpected message: ${x}")
    })
    WS(Exchange(websocketProtocol, fromClient))
  }
} 

//设置package包名称以及导入依赖的类
package com.imageintelligence.http4c.middleware

import java.time.Duration

import com.github.bucket4j._
import org.http4s.Response
import org.http4s.Service
import org.http4s.dsl._

object RateLimitingMiddleware {

  
  def apply[A, B](tokenFn: A => B, bucketingFn: => Bucket): Middleware[A, Response, A, Response] = { service =>

    val buckets = new java.util.concurrent.ConcurrentHashMap[B, Bucket]()

    Service.lift[A, Response] { req =>
      val token = tokenFn(req)

      val bucket = Option(buckets.get(token)) match {
        case None    => {
          val newBucket = bucketingFn
          Option(buckets.putIfAbsent(token, newBucket)).getOrElse(newBucket)
        }
        case Some(b) => b
      }
      
      if (bucket.tryConsumeSingleToken())
        service.run(req)
      else
        TooManyRequests()
    }
  }

  def simpleThrottling[A, B](tokenFn: A => B, capacity: Long, period: Duration): Middleware[A, Response, A, Response] = {
    val limit = Bandwidth.simple(capacity, period)
    val bucket = Bucket4j.builder().addLimit(limit).build()
    apply(tokenFn, bucket)
  }
}