Question

我正在研究Suave 1.0 + Angular 2.0 sample app并且在监视模式下启动Suave服务器非常有趣，因此服务器监视文件在根文件夹和子文件夹中更改（js，css，html）并自动发送{{1}在更改任何文件时，使用我的应用程序打开所有打开的浏览器选项卡。

<{3}}的{p> refresh可以做到这一点，非常方便。

我认为大部分手表都可以在Angular 2 5min Quckstark中找到，但如何将lite-server发送到打开的浏览器标签页不是很干净。

请提供与refresh类似的实施的完整代码。

Answer 1

Suave服务器的代码应与此类似

#r "packages/Suave/lib/net40/suave.dll"
#r "packages/FAKE/tools/FakeLib.dll"

open Fake
open Suave
open Suave.Operators
open Suave.Sockets.Control
open Suave.WebSocket
open Suave.Utils
open Suave.Files
open Suave.RequestErrors
open Suave.Filters
open System
open System.Net


let port =
    let rec findPort port =
        let portIsTaken =
            System.Net.NetworkInformation.IPGlobalProperties.GetIPGlobalProperties().GetActiveTcpListeners()
            |> Seq.exists (fun x -> x.Port = int(port))
        if portIsTaken then findPort (port + 1us) else port
    findPort 8083us

let logger = Logging.Loggers.ConsoleWindowLogger Logging.LogLevel.Verbose

let refreshEvent = new Event<_>()

let handleWatcherEvents (events:FileChange seq) =
    for e in events do
        let fi = fileInfo e.FullPath
        traceImportant <| sprintf "%s was changed." fi.Name
    refreshEvent.Trigger()

let socketHandler (webSocket : WebSocket) =
  fun cx -> socket {
    while true do
      let! refreshed =
        Control.Async.AwaitEvent(refreshEvent.Publish)
        |> Suave.Sockets.SocketOp.ofAsync
      do! webSocket.send Text (ASCII.bytes "refreshed") true
  }

let cfg =
  { defaultConfig with
      homeFolder = Some (__SOURCE_DIRECTORY__)
      bindings =
        [ HttpBinding.mk HTTP IPAddress.Loopback port ]
      listenTimeout = TimeSpan.FromMilliseconds 3000. }

let app : WebPart =
  choose [
    Filters.log logger logFormat >=> never
    Filters.path "/websocket" >=> handShake socketHandler
    Filters.GET >=> Filters.path "/" >=> file "index.html"
    Writers.setHeader "Cache-Control" "no-cache, no-store, must-revalidate"
      >=> Writers.setHeader "Pragma" "no-cache"
      >=> Writers.setHeader "Expires" "0"
      >=> browseHome
    NOT_FOUND "Found no handlers."
  ]


let watcher =
    !! ("app/*.js")
      ++ ("*.html")
    |> WatchChanges handleWatcherEvents

try
    System.Diagnostics.Process.Start(sprintf "http://localhost:%d/index.html" port) |> ignore
    startWebServer cfg app
finally
    watcher.Dispose()

因此我们设置了处理器来处理js（由TypeScript生成）和html文件中的更改并向客户端发送refresh命令，但同时我们需要添加以下内容代码head的{{1}}部分，以便在客户端处理index.html

refresh

您可以找到完整的演示应用here

Suave in watch模式（开发期间）

1 个答案: