A Serilog sink that writes events to a SignalR Hub
From within the SignalR server application with a hub named MyHub:
var hubContext = GlobalHost.ConnectionManager.GetHubContext<MyHub>();
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Verbose()
.WriteTo.SignalR(hubContext,
Serilog.Events.LogEventLevel.Information,
groupNames: new[] { "CustomGroup"}, // default is null
userIds: new[] { "JaneD1234" }, // default is null
excludedConnectionIds: new[] { "12345", "678910" }) // default is null
.CreateLogger();From any client application with a hub hosted at http://localhost:8080 and a hub implemented named MyHub:
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Verbose()
.WriteTo.SignalRClient("http://localhost:8080",
Serilog.Events.LogEventLevel.Information,
hub: "MyHub" // default is LogHub
groupNames: new[] { "CustomGroup"}, // default is null
userIds: new[] { "JaneD1234" }) // default is null
.CreateLogger();Create a hub class with any name that ends in Hub or use the default name LogHub. Then create a method named receiveLogEvent, which is capable of accepting all data from the sink.
public class MyHub : Hub
{
public void receiveLogEvent(string[] groups, string[] userIds, Serilog.Sinks.SignalR.Data.LogEvent logEvent)
{
// send to all clients
Clients.All.sendLogEvent(logEvent);
// just the specified groups
Clients.Groups(groups).sendLogEvent(logEvent);
// just the specified users
Clients.Users(users).sendLogEvent(logEvent);
}
}Set up a SignalR client and subscribe to the sendLogEvent method.
var connection = new HubConnection("http://localhost:8080");
var hubProxy = connection.CreateHubProxy("MyHub");
hubProxy.On<Serilog.Sinks.SignalR.Data.LogEvent>("sendLogEvent", (logEvent) =>
{
Console.WriteLine(logEvent.RenderedMessage);
});