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walletrpc: allow conf_target=1 in EstimateFee and FundPsbt #10087

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Merged
merged 4 commits into from
Aug 4, 2025
Merged

walletrpc: allow conf_target=1 in EstimateFee and FundPsbt #10087

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b0e9a4b
walletrpc: allow conf_target=1 in EstimateFee
starius Jul 17, 2025
cd6e648
itest: add test for walletrpc.EstimateFee
starius Jul 17, 2025
c227682
walletrpc: allow conf_target=1 in FundPsbt
starius Aug 1, 2025
aacb94c
doc: add release note (EstimateFee conf_target 1)
starius Jul 17, 2025
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4 changes: 2 additions & 2 deletions itest/lnd_psbt_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1253,8 +1253,8 @@ func fundPsbtCoinSelect(t testing.TB, node *node.HarnessNode,
Template: &walletrpc.FundPsbtRequest_CoinSelect{
CoinSelect: cs,
},
Fees: &walletrpc.FundPsbtRequest_SatPerVbyte{
SatPerVbyte: 50,
Fees: &walletrpc.FundPsbtRequest_TargetConf{
TargetConf: 1,
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@yyforyongyu yyforyongyu Aug 4, 2025

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nit: Commit msg says testing this scenario, tho I don't think it's tested here - the branch below was not executed

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@starius starius Aug 7, 2025

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I reverted the change in lnrpc/walletrpc/walletkit_server.go and ran make itest icase='fund_psbt'. It failed:

=== RUN   TestLightningNetworkDaemon/tranche00/67-of-309/btcd/fund_psbt
    harness_node.go:395: Starting node (name=Alice) with PID=971348
    harness_node.go:395: Starting node (name=Bob) with PID=971361
    harness_rpc.go:100: 
                Error Trace:    /home/user/lnd/lntest/rpc/harness_rpc.go:100
                                                        /home/user/lnd/lntest/rpc/wallet_kit.go:66
                                                        /home/user/lnd/itest/lnd_psbt_test.go:1252
                                                        /home/user/lnd/itest/lnd_psbt_test.go:1140
                                                        /home/user/lnd/lntest/harness.go:315
                                                        /home/user/lnd/itest/lnd_test.go:130
                Error:          Received unexpected error:
                                rpc error: code = Unknown desc = confirmation target must be greater than 1
                Messages:       Alice: failed to call FundPsbt
    harness.go:393: finished test: fund_psbt, start height=438, end height=440, mined blocks=2
    harness.go:352: test failed, skipped cleanup

},
})

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4 changes: 2 additions & 2 deletions lnrpc/walletrpc/walletkit_server.go
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Expand Up @@ -1555,9 +1555,9 @@ func (w *WalletKit) FundPsbt(_ context.Context,
// Estimate the fee by the target number of blocks to confirmation.
case req.GetTargetConf() != 0:
targetConf := req.GetTargetConf()
if targetConf < 2 {
if targetConf < 1 {
return nil, fmt.Errorf("confirmation target must be " +
"greater than 1")
"greater than 0")
}

feeSatPerKW, err = w.cfg.FeeEstimator.EstimateFeePerKW(
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