Web sockets vs SSE

[scottjbarr]

The documentation for the "Push Notifications" endpoint says,

Subscribe to push notifications using web sockets.

The use of web sockets requires libraries/packages on top of HTTP.

Given that the API is exposed over HTTP, have you considered Server Sent Events (SSE), which work natively with HTTP without extra tooling? SSE even works for relatively simple tools like the curl command line client.

See https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events

[Danconnolly]

I think thats a good point but I'd rather see it as an extension to this spec. I dont want to crowd the spec with various implementation technologies.

[rt121212121]

SSE does not support binary messages and has other limitations. We looked at using it for ElectrumSV's client-server connections and it was not usable. ElectrumSV's server aims to support both binary and text notifications, depending on client choice.