Router SendPayment does not parse Amount when Invoice with dynamic value is set.

[zoopli]

lndclient/router_client.go

Line 425 in 67d851a

rpcReq.Amt = int64(request.Amount)

When sending a payment with the parameters request.Invoice set to a 0 amount invoice as well as request.Amount set it will still submit it without the amount as opposed to what is expected for a dynamic value invoice.

I tried it with this invoice. This will result in rpc error: code = Unknown desc = amount must be specified when paying a zero amount invoice

Or is this expected and I have to replace the 0 amount invoice myself first?

[guggero]

I think this is probably a left-over case from back when zero-amount invoices were unsafe. Should probably be fixed in lndclient.

[zoopli]

I have started to use lnrpc.LightningClient.SendPaymentSync instead and subscribe to status updates immediately after as a workaround.