SignalR Lite

• 使用kotlin编写的，可以运行在jvm/android平台的SignalR简易客户端

• A simple SignalR client written in kotlin that can run on the jvm/android platform

• 与官方库相比，功能较为简单，仅支持本地与远程服务的相互调用。

• Compared with the official library, the function is relatively simple, only supports the mutual call of local and remote services.

• 因为仅使用了kotlin coroutine、OkHttp、Gson等常用库，所以相较于官方库，更加轻量。

• Because only kotlin coroutine, OkHttp, Gson libraries are used, it is lighter than the official library.

Install

当前版本：

第1步. 添加JitPack仓库到你的项目中
Step 1. Add the JitPack repository to your build file

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

第2步. 添加以下依赖到你的模块中
Step 2. Add the dependency

dependencies {
    ...
    implementation 'cn.numeron:signalr-lite:latest'
}

Usage

• 查看MainActivity.kt
• see MainActivity.kt

1. 定义要模拟的远程方法
   Define server methods for emulation

   interface RealtimeDataService {
       // Note: The simulated method must be suspend qualified
       @SignalRInvocation("Subscribe")
       suspend fun subscribe(tags: String)
   }

2. 在本地定义供服务器远程调用的方法
   Define methods locally for the server to call remotely

   // Note: The 'SignalRInvocation' annotation is required.
   // If the remote method name is different from the local method name, you can specify it through the parameter
   @SignalRInvocation("GetRealtime")
   fun onGotRealtimeData(data: RealtimeData) {
       // This method is invoked during the remote service invocation
   }

3. 构建SignalRHub实例
   Build SignalRHub instance

   private val signalRHub = SignalRHub.Builder(serverUrl)
       // Add object instance that defines local method
       .invocationOwner(this)
       .build()

4. 创建模拟服务器的实例
   Create an instance of the simulated server

   private val realtimeDataService = signalRHub.simulate(RealtimeDataService::class.java)

5. 连接SignalR服务器
   connect SignalR server.

   lifecycleScope.launch {
       try {
           signalRHub.connect()
       } catch (throwable: CancellationException) {
           Log.d("MainActivity", "signalr disconnected.", throwable)
       } catch (throwable: Throwable) {
           Log.d("MainActivity", "connect error.", throwable)
       }
   }

6. 调用远程方法
   Call remote methods

    lifecycleScope.launch {
       realtimeDataService.subscribe("data1,data2,data3,data4,data5")
   }