以AspNetCore建立的 Web API專案，使用Nuget套件：Microsoft.AspNetCore.SignalR的用法
以AspNetCore建立新 Web API專案，目標Framework為.NET 7.0，使用Nuget套件：Microsoft.AspNetCore.SignalR
首先建立Hub的Class:WindowsServiceHub.cs
namespace IPCWebApi.HubClass
{
public class WindowsServiceHub : Hub
{
/// <summary>
/// 傳送Windows Service狀態
/// </summary>
/// <param name="InputModel"></param>
/// <returns></returns>
public async Task SendWindowsServiceStatus(BooleanModel InputModel)
{
await Clients.All.SendAsync("SendWindowsServiceStatus", InputModel.Result);
}
}
}在Controller裡新增：
/// <summary>
/// 傳送Windows Service狀態
/// </summary>
/// <param name="InputModel"></param>
/// <returns></returns>
[HttpPost]
[Route("SendWindowsServiceStatus")]
public async Task<IActionResult> SendWindowsServiceStatus(BooleanModel InputModel)
{
await _hubContext.Clients.All.SendAsync("SendWindowsServiceStatus", InputModel.Result);
return Ok();
}最後在 Program.cs 裡的app.Run();前加進：
app.MapHub<WindowsServiceHub>("/windowsServiceHub");再由另外的專案如windows service或windows console寫呼叫API的function內容如下僅供參考：
HttpClient client = SetHttpClient(URL);
client.Timeout = TimeSpan.FromSeconds(TimeOutSecond);
HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(InputModel), Encoding.UTF8, "application/json");
HttpResponseMessage response = await client.PostAsync(apiPath, httpContent);
response.EnsureSuccessStatusCode();補充：若要讓使用Web Socket的SignalR保持連線，在Program.cs寫
var webSocketOptions = new WebSocketOptions
{
KeepAliveInterval = TimeSpan.FromMinutes(2)
};
app.UseWebSockets(webSocketOptions);