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Anyone familiar with #EventSource? I have an ASP.NET Core backend which uses an IAsyncEnumerable and TypedResults.ServerSentEvents and it's working fine. But I want to return a 400/404/403 if the provided id is invalid/not existent/restricted. How to distinguish that in the frontend?

developer.mozilla.orgEventSource - Web APIs | MDNThe EventSource interface is web content's interface to server-sent events.

18/10/26, 4:41 pm0 reposts4 likes

Lars Hanisch

@flensrocker.de

Should I use custom events to get the right error to the client and actively close the connection? Possible, but feels a bit awkward...

Lars Hanisch

@flensrocker.de

Or just use a custom implementation (what I don't really want, because each dependency adds responsibility to me). npmx.dev/package/even...

npmx.deveventsource - npmxWhatWG/W3C compliant EventSource client for Node.js and browsers