Hmmm. Working on Nip-57 Zap receipts on LightningTipBot (LN.tips) ... it's easier than I thought.
Discussion
I guess soon™️ on https://LN.tips 👈
Woo!
Thanks i tried to make it as simple as possible.
Yes. Zap is easy to implement…!
@jb55 I am having issue with seeing the zap on Damus. It is correctly showing up on snort.social Here’s the 9735 event I think the sha256 description is not matching…!
https://nosbin.com/4e8654c27e25a5293ca200d464f110e0936983183d78f590c5c0f4ca24690483
snort.social success screenshot: 
damus will reject it if the sha2(description) does not match the description hash
understand. Are you converting to hex?
this is what I am doing.. Can you give me the line of code you are using before generating invoice in your CLN?
description_hash = Buffer.from(crypto.createHash('sha256').update(req.query.nostr).toString('hex'), 'hex')
Yes super nice, well done!
My partner will not like how I hacked it into the vanilla LNURL part of the code but I'll try to isolate the nostr stuff as good as I can :)
A quick note on the NIP, I found this part confusing:
"The e tag is optional which allows profile tipping."
I was like, is this a typo? Why would the e tag be for profile tipping. Then I realized what you're saying.
I would reformulate it to make it a bit more explicit as in: "The e tag is optional. When only the p tag is present, it represents profile tipping" or something.
Winning ™
Where are you storing the zap request note kind=9734? Do you use cln or lnd?
I either store them in the object storage or might keep them in cache only as you only need to remember them from payment request to actual payment settlement. The receipt (like any LNURL stuff) lives only in the realm of the Bot / LN wallet and doesn't touch the LN node.
#Golang is such a well balanced language.
Zapped!
Where is lnurl_test.go, NVK? 😂
Well done, dude! 👏 💖⚡⚡
This will be HUGE!