ASP.NET Core 2–Enabling SignalR logging

Sometimes you just need some logging to do a sanity check that things are actually working the way that you’re expecting.

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Here’s how to turn logging on in ASP.NET Core 2 for SignalR:

	WebHost.CreateDefaultBuilder(args)
	.UseStartup<Startup>()
	.ConfigureLogging(logging =>
	{
	// Set the logging level for SignalR:
	logging.AddFilter("Microsoft.AspNetCore.SignalR", LogLevel.Debug);
	// Set the logging level for Http Connections:
	logging.AddFilter("Microsoft.AspNetCore.Http.Connections", LogLevel.Debug);
	})
	.Build();

view raw Program.cs hosted with by GitHub

I’ve had to look this up more than twice, and its not exactly easy to find in the Microsoft docs, so I’m just writing it down here so I can find it quickly again.

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