Generate invoices in Flask, not BTCPay

[justinmoon]

In my experiences BTCPay UI for generating an invoice to send sats to is a worse UX than just doing it in the faucet. There's like 3 more clicks.

Completing this issue would require understanding the nix deployment because you'd need to be able to get the RPC socket path for the non-gateway lightning node ...

Not sure how feasible this is, but just making note ...

[elsirion]

you'd need to be able to get the RPC socket path for the non-gateway lightning node

The faucet is currently packaged in my fork of nix-bitcoin and already gets the RPC socket as a environment variable (the faucet has to run on the non-gateway LN node anyway, so it's the right one). In fact your faucet already supports generating invoices, I merely hid the UI for not giving feedback.

The hard part here for me would be giving feedback to the user about the payment status of their invoice (web socket, polling, …). That's why I went with BTCPay so far.

[justinmoon]

Ahh that makes sense