This is a preparation for enabling the REST interface on routerrpc.
It provides REST clients that don't support server-side streaming
via keep-alive connections to use the streaming endpoint in the
typical request/response pattern. The url just needs to contain
?no_inflight_updates=true and only the terminal response is sent
back before the connection is closed.
The message in the response stream changed. Rename the calls themselves,
to prevent older applications from getting decode errors. Especially
troublesome is the case where the request is executed (send payment),
but the application can't read the outcome (payment sent or not?)
This commit reverts cb4cd49dc8 to bring
back the insufficient local balance failure.
Distinguishing betweeen this failure and a regular "no route" failure
prevents meaningless htlcs from being sent out.
It can happen that the receiver times out some htlcs of the set if it
took to long to complete. But because the sender's mission control is
now updated, it is worth to keep trying to send those shards again.
Modifies the payment session to launch additional pathfinding attempts
for lower amounts. If a single shot payment isn't possible, the goal is
to try to complete the payment using multiple htlcs. In previous
commits, the payment lifecycle has been prepared to deal with
partial-amount routes returned from the payment session. It will query
for additional shards if needed.
Additionally a new rpc payment parameter is added that controls the
maximum number of shards that will be used for the payment.
With mpp it isn't possible anymore for findPath to determine that there
isn't enough local bandwidth. The full payment amount isn't known at
that point.
In a follow-up, this payment outcome can be reintroduced on a higher
level (payment lifecycle).
This commit fixes the inconsistency between the payment state as
reported by routerrpc.SendPayment/routerrpc.TrackPayment and the main
rpc ListPayments call.
In addition to that, payment state changes are now sent out for every
state change. This opens the door to user interfaces giving more
feedback to the user about the payment process. This is especially
interesting for multi-part payments.
There is an alternative in routerrpc now. It doesn't support REST yet,
but the main rpc SendPayment with its bidirectional streaming isn't
usable via REST either.
SendPaymentSync still serves REST users and cannot be deprecated yet.
These tests exercise the different ways of sweeping a commitment, so
we'll cover the modified scripts used for anchor commitments and
spending the anchor itself by both parties.
Co-authored-by: Johan T. Halseth <johanth@gmail.com>
Fixes a subtle bug where the outer scope predErr was hidden when the
return value of findForceClosedChannel was stored in a newly
defined variable with the same name.
Sweeping anchors and being able to bump the fee was already added in a
previous commit. This commit extends anchor sweeping with an anchor
resolver object that becomes active after the commitment tx confirms.
At that point, the anchors do not serve the purpose of getting the
commitment tranaction confirmed anymore. It is however still possible to
reclaim some of their value if using a low fee rate.
Preparation for anchor resolver. The recovered anchor amount should
still be included in the pending channel report even after it has been
resolved.
This also fixes an existing bug that in some cases caused the recovered
amount from an htlc resolver not to be included in the total.
Start anchor sweep attempts immediately after the commitment transaction
has been published. This makes the anchor known to the sweeper and
allows the user to bump the fee on it to get their commitment
transaction confirmed in case the fee committed too is insufficient for
timely confirmation.
Prior to this change, the trigger height for closed channels was set to
the current best block height. As this height is in some cases used as a
height hint, the spend may have been missed.
Joost Jager