From ZmnSCPxj at protonmail.com Tue Feb 26 03:50:33 2019 From: ZmnSCPxj at protonmail.com (ZmnSCPxj) Date: Tue, 26 Feb 2019 03:50:33 +0000 Subject: [Lightning-dev] Payee pay fee In-Reply-To: <874l8vupmc.fsf@rustcorp.com.au> References: <87va1cv4ad.fsf@rustcorp.com.au> <874l8vupmc.fsf@rustcorp.com.au> Message-ID: Good morning Rusty, > > Yes. But how does the payee know to give the bolt12 offer to the payer? > > That's the piece that's missing here, which is actually independent. Ah, I understand now. In the context of this thread, payer is a service, while payee is user. So I presume an HTTPS PUT or POST request, with the payer providing the HTTPS server? > > > Intermediate nodes remain unaware of this new feature and do not require upgrades. > > That works if we use a fake "payment" like this to get the real invoice. > Be nicer to use a real message format though, as it's less overhead for > everyone and faster. While good for back-compatibility, it indeed has the above drawback of overhead. Perhaps it is early enough that rolling out a new feature that must needs be "sufficiently universal" is still plausible. Might it be possible to use SURBs as in the other thread? Regards, ZmnSCPxj