Keysend using light-name

[hsjoberg]

Umbrella issue.

Trying out the https://github.com/hsjoberg/light-name prototype now makes sense now that lnd 0.9 has support for TLV. SubscribeInvoices would receive the spontaneous payments so the normal transaction receiving flow will probably "just work".

Tasks

• [x] Figure out how to send to the Router subserver, as it has the ability to provide routehints (https://github.com/lightningnetwork/lnd/blob/master/lnrpc/routerrpc/router.proto#L95)
• [x] Figure out how to query routehints from to the user node
• [ ] Front-backend function sendKeysendPayment
• [x] Test normal keysend functionality
• [x] Fully develop the light-name server (API calls missing and not adapted for keysend)
• [ ] Subsystem for light-name (i.e talk to the API server)
• [ ] GUI
  • [ ] Basic Send page (i.e search for user)
  • [ ] Transaction log fixes
  • [ ] light-name account registration
• [x] Backend; we need to decide if it should have its own sendLightName method or if we should just build everything in the frontend using protobufjs and the normal sendCommand flow. Decision: Normal flow with sendCommand
• [ ] Adapt tx database
• [x] Adapt Receive subsystem for light-name payments
• [ ] Tests

Eventually

• Firebase integration to start up app+lnd to be able to accept incoming payments. This will truly make this "Venmo"-like. However, it is very prone to DoS attacks and there a lots of things that needs to be figured out here.
• Chat messages (strive for compatibility with https://github.com/joostjager/whatsat)
• Contact list
• QueryRouteHints #126

Links

https://api.lightning.community/#sendpayment https://api.lightning.community/#destcustomrecordsentry https://github.com/lightningnetwork/lnd/tree/v0.9.0-beta

[hsjoberg]

AddInvoice can obviously get route hints to the node.

The SubscribeInvoices stream would fetch the invoice though. -.- We could make hardcode it to ignore on a specific invoice description or something.

[hsjoberg]

Look into supporting Pines Payment Protocol https://github.com/blockfirm/pine-payment-server