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ASP.NET Core WebSockets and Application Lifetime Shutdown Events
1 comment
May 28, 2020 - Maui, Hawaii
WebSockets in ASP.NET Core are easy to use but due to the simple model it's easy to forget that socket requests are long lived and can linger for a long time in the background and that can cause problems when an application needs to shut down cleanly. Luckily there's an `IHostApplicationLifetime` interface available that allows hooking shutdown operations and that provides the necessary cancellation tokens to allow an WebSocket connection to be terminated in response to a shutdown event. This post shows how this works.