Apache Pekko HTTP Scala
一个用于 Apache Pekko HTTP 的 Scala 代码片段,以空 GIF 响应对 /pixel.gif 的请求,GIF 在启动时只解码一次。
Apache Pekko HTTP Scala
import org.apache.pekko.actor.typed.ActorSystem
import org.apache.pekko.actor.typed.scaladsl.Behaviors
import org.apache.pekko.http.scaladsl.Http
import org.apache.pekko.http.scaladsl.model.{HttpEntity, MediaTypes}
import org.apache.pekko.http.scaladsl.model.headers.`Cache-Control`
import org.apache.pekko.http.scaladsl.model.headers.CacheDirectives.`no-store`
import org.apache.pekko.http.scaladsl.server.Directives.*
@main def pixelServer(): Unit =
given ActorSystem[Nothing] = ActorSystem(Behaviors.empty, "pixel")
val gif = HttpEntity(MediaTypes.`image/gif`, java.util.Base64.getDecoder.decode("R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw=="))
val route =
path(separateOnSlashes("/pixel.gif".stripPrefix("/"))) {
get {
respondWithHeader(`Cache-Control`(`no-store`)) {
complete(gif)
}
}
}
Http().newServerAt("0.0.0.0", 8080).bind(route)
我们运行了此代码片段,并比对了它返回的字节。
验证
curl -sI http://localhost:8080/pixel.gif