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https://github.com/phfroidmont/scalive.git
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Support live navigation
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Paul-Henri Froidmont
parent
0b067aa7e1
commit
d42472061b
GPG key ID:
BE948AFD7E7873BE
5 changed files with 63 additions and 30 deletions
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@ -8,6 +8,10 @@ package object scalive extends HtmlTags with HtmlAttrs with ComplexHtmlKeys:
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lazy val defer = htmlAttr("defer", codecs.BooleanAsAttrPresenceCodec)
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object link:
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def navigate(path: String, mods: Mod*): HtmlElement =
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a(href := path, phx.link := "redirect", phx.linkState := "push", mods)
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object phx:
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private def phxAttr(suffix: String): HtmlAttr[String] =
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new HtmlAttr(s"phx-$suffix", StringAsIsCodec)
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@ -18,6 +22,8 @@ package object scalive extends HtmlTags with HtmlAttrs with ComplexHtmlKeys:
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private[scalive] lazy val session = dataPhxAttr("session")
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private[scalive] lazy val main = htmlAttr("data-phx-main", BooleanAsAttrPresenceCodec)
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private[scalive] lazy val link = dataPhxAttr("link")
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private[scalive] lazy val linkState = dataPhxAttr("link-state")
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lazy val click = phxAttrJson("click")
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def value(key: String) = phxAttr(s"value-$key")
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@ -17,6 +17,14 @@ final case class WebSocketMessage(
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eventType: String,
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payload: WebSocketMessage.Payload):
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val meta = WebSocketMessage.Meta(joinRef, messageRef, topic, eventType)
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def okReply =
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WebSocketMessage(
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joinRef,
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messageRef,
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topic,
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"phx_reply",
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Payload.Reply("ok", LiveResponse.Empty)
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)
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object WebSocketMessage:
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final case class Meta(
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@ -33,6 +41,8 @@ object WebSocketMessage:
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val payloadParsed = eventType match
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case "heartbeat" => Right(Payload.Heartbeat)
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case "phx_join" => payload.as[Payload.Join]
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case "phx_leave" => Right(Payload.Leave)
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case "phx_close" => Right(Payload.Close)
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case "event" => payload.as[Payload.Event]
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case s => Left(s"Unknown event type : $s")
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@ -56,6 +66,8 @@ object WebSocketMessage:
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m.payload match
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case Payload.Heartbeat => Json.Obj.empty
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case p: Payload.Join => p.toJsonAST.getOrElse(throw new IllegalArgumentException())
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case Payload.Leave => Json.Obj.empty
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case Payload.Close => Json.Obj.empty
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case p: Payload.Reply => p.toJsonAST.getOrElse(throw new IllegalArgumentException())
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case p: Payload.Event => p.toJsonAST.getOrElse(throw new IllegalArgumentException())
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case p: Payload.Diff => p.toJsonAST.getOrElse(throw new IllegalArgumentException())
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@ -65,11 +77,14 @@ object WebSocketMessage:
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enum Payload:
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case Heartbeat
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case Join(
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url: String,
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url: Option[String],
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redirect: Option[String],
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// params: Map[String, String],
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session: String,
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static: Option[String],
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sticky: Boolean)
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case Leave
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case Close
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case Reply(status: String, response: LiveResponse)
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case Diff(diff: scalive.Diff)
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case Event(`type`: Payload.EventType, event: String, value: Map[String, String])
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@ -17,8 +17,8 @@ class HomeLiveView() extends LiveView[String, Unit]:
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cls := "space-y-2",
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links.map((path, name) =>
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li(
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a(
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href := path,
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link.navigate(
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path,
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cls := "block px-4 py-2 rounded-lg text-gray-700 hover:bg-gray-100 hover:text-gray-900 font-medium transition",
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name
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)
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@ -1,6 +1,5 @@
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package scalive
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import scalive.WebSocketMessage.LiveResponse
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import scalive.WebSocketMessage.Meta
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import scalive.WebSocketMessage.Payload
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import zio.*
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@ -75,6 +74,18 @@ class LiveChannel(private val sockets: SubscriptionRef[Map[String, Socket[?, ?]]
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.map(m.updated(id, _))
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}.flatMap(_ => ZIO.logDebug(s"LiveView joined $id"))
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def leave(id: String): UIO[Unit] =
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sockets.updateZIO { m =>
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m.get(id) match
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case Some(socket) =>
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for
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_ <- socket.shutdown
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_ <- ZIO.logDebug(s"Left LiveView $id")
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yield m.removed(id)
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case None =>
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ZIO.logWarning(s"Tried to leave LiveView $id which doesn't exist").as(m)
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}
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def event(id: String, value: String, meta: WebSocketMessage.Meta): UIO[Unit] =
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sockets.get.flatMap { m =>
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m.get(id) match
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@ -109,13 +120,16 @@ class LiveRouter(rootLayout: HtmlElement => HtmlElement, liveRoutes: List[LiveRo
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Read(
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WebSocketFrame.text(
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WebSocketMessage(
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meta.joinRef,
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meta.messageRef,
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meta.topic,
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payload match
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joinRef = meta.joinRef,
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messageRef = payload match
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case Payload.Close => meta.joinRef
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case _ => meta.messageRef,
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topic = meta.topic,
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eventType = payload match
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case Payload.Diff(_) => "diff"
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case Payload.Close => "phx_close"
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case _ => "phx_reply",
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payload
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payload = payload
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).toJson
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)
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)
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@ -146,21 +160,10 @@ class LiveRouter(rootLayout: HtmlElement => HtmlElement, liveRoutes: List[LiveRo
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private def handleMessage(message: WebSocketMessage, liveChannel: LiveChannel)
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: RIO[Scope, Option[WebSocketMessage]] =
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message.payload match
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case Payload.Heartbeat =>
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ZIO.succeed(
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Some(
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WebSocketMessage(
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message.joinRef,
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message.messageRef,
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message.topic,
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"phx_reply",
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Payload.Reply("ok", LiveResponse.Empty)
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)
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)
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)
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case Payload.Join(url, session, static, sticky) =>
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case Payload.Heartbeat => ZIO.succeed(Some(message.okReply))
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case Payload.Join(url, redirect, session, static, sticky) =>
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ZIO
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.fromEither(URL.decode(url)).flatMap(url =>
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.fromEither(URL.decode(url.orElse(redirect).getOrElse(???))).flatMap(url =>
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val req = Request(url = url)
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liveRoutes.iterator
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.map(route =>
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@ -169,7 +172,7 @@ class LiveRouter(rootLayout: HtmlElement => HtmlElement, liveRoutes: List[LiveRo
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.toOption
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.map(route.liveviewBuilder(_, req))
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.map(
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ZIO.logDebug(s"Joining live view ${route.path.toString} ${message.topic}") *>
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ZIO.logDebug(s"Joining LiveView ${route.path.toString} ${message.topic}") *>
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liveChannel.join(message.topic, session, _, message.meta)(
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using route.messageCodec
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)
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@ -178,12 +181,17 @@ class LiveRouter(rootLayout: HtmlElement => HtmlElement, liveRoutes: List[LiveRo
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.collectFirst { case Some(join) => join.map(_ => None) }
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.getOrElse(ZIO.succeed(None))
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)
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case Payload.Leave =>
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liveChannel
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.leave(message.topic)
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.as(Some(message.okReply))
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case Payload.Event(_, event, _) =>
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liveChannel
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.event(message.topic, event, message.meta)
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.map(_ => None)
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case Payload.Reply(_, _) => ZIO.die(new IllegalArgumentException())
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case Payload.Diff(_) => ZIO.die(new IllegalArgumentException())
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case Payload.Close => ZIO.die(new IllegalArgumentException())
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end match
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end handleMessage
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@ -64,7 +64,11 @@ object Socket:
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yield ()
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}.fork
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stop =
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inbox.shutdown *> outHub.shutdown *> clientFiber.interrupt.unit *> serverFiber.interrupt.unit
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outHub.publish(Payload.Close -> meta) *>
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inbox.shutdown *>
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outHub.shutdown *>
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clientFiber.interrupt.unit *>
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serverFiber.interrupt.unit
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outbox =
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ZStream.succeed(
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Payload.okReply(LiveResponse.InitDiff(initDiff)) -> meta
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