Yeah it's pretty cool how they work. 

1. I have an old zbd account from '21 with a lnaddr of `k00b@zbd.gg`
2. applications go to `https://<domain>/.well-known/lnurlp/<name>` when they want to pay a lightning address
    - e.g. https://zbd.gg/.well-known/lnurlp/k00b (you can visit this in your browser)
3. from the response in (2), we take the `callback` field (another url) and then append arguments like the invoice amount
    - e.g. https://api.zebedee.io/v0/process-static-charges/8a26fded-2f64-4404-8af8-f0032b186de4?amount=1000 (you can visit this in your browser) which asks zbd to make a 10 sat bolt11 invoice
4. When visiting the url in (3), it has a`pr` response which is the bolt11 invoice that we pay

ok thanks 🥺

I didn't even know ln-urls have full invoices and expiration times in the background before you explained it to me recently

kilianbuhn

Stacker Saloon

saloon

It looks like their expirations are exactly five minutes. We should be able to accommodate that. I'll fix it today.