In some situations Server-Sent Events connection may require keep alives. This post describes one of such situations and shows how it can be solved in ASP.NET Core.
The web socket protocol is currently the most popular one for pushing data to browsers, however it's not the only one. The Server-Sent Events (SSE) is a very interesting alternative which can provide better performance for specific use cases. In this post I'm going to show it can be used with ASP.NET Core.