htmx sse

[gedw99]

nice proof of concept.

so web screens update without a refresh also. htmx sse is good for this.

https://github.com/bigskysoftware/htmx-extensions/blob/main/src/sse/sse.js

[headblockhead]

Thanks! I'll look into this.

[gedw99]

you might find this interesting.

maddalax/htmgo#52

htmgo a htmx golang system, with that code generates the Router and a few other bits. It's using SSE too.

The Issue is talking about compiling to WASM, which of course is what you do, compiling to WASM for Cloud Flare.

The reason I am talking about this link is because I think I can adapt the HTMGO code gen so that it works with github.com/syumai/workers, just like you have.

[headblockhead]

In regard to the issue you linked, it sounds like an interesting idea! Dependencies not compiling to WASM is a pretty huge issue at the moment, many libraries I have tried to import failed to build, or worse failed at runtime when running in webassembly. :(

This project uses tinygo to build for WASM as it helps reduce the size of the output binary, but many built-in Go features are not implemented on TinyGo, and vice versa. It's a tricky balancing act.

On adding SSE,
I made a very simple SSE implementation, now live. There is no way to subscribe to KV updates as far as I'm aware, and using a channel to send events didn't work with the cloudflare runners when I tried, so my solution polls the KV store every 0.5 seconds. The free tier has 100,000 requests/day and 1000 requests/min as limits, so it should be fine.

The main issue I had when building it was that every guide instructs you to use w.(http.Flusher).Flush() to ensure your event is sent, but that mysteriously crashes the WASM worker when called.

I hope this may be of help to you! Thanks for taking the time to write an issue and response.

[gedw99]

Totally know what you mean about the “ flushing “. Polling is the only solution , but let me have a look . Have 2 other ideas for where the actor lives ..