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wallet: rpc: Improve error message for low feerates.

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This commit is contained in:
David Gumberg
2026-02-20 14:31:47 -08:00
parent ce6898f9a8
commit 98fcd7af23
2 changed files with 22 additions and 2 deletions
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11
src/wallet/rpc/spend.cpp
View File

@@ -1435,7 +1435,16 @@ RPCHelpMan sendall()
// Do not, ever, assume that it's fine to change the fee rate if the user has explicitly
// provided one
if (coin_control.m_feerate && fee_rate > *coin_control.m_feerate) {
throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Fee rate (%s) is lower than the minimum fee rate setting (%s)", coin_control.m_feerate->ToString(FeeRateFormat::SAT_VB), fee_rate.ToString(FeeRateFormat::SAT_VB)));
const auto feerate_format = FeeRateFormat::SAT_VB;
auto msg{strprintf("Fee rate (%s) is lower than the minimum fee rate setting (%s).",
coin_control.m_feerate->ToString(feerate_format),
fee_rate.ToString(feerate_format))};
if (fee_calc_out.reason == FeeReason::REQUIRED) {
msg += strprintf("\nConsider modifying -mintxfee (%s) or -minrelaytxfee (%s).",
pwallet->m_min_fee.ToString(feerate_format),
pwallet->chain().relayMinFee().ToString(feerate_format));
}
throw JSONRPCError(RPC_INVALID_PARAMETER, msg);
}
if (fee_calc_out.reason == FeeReason::FALLBACK && !pwallet->m_allow_fallback_fee) {
// eventually allow a fallback fee

13
src/wallet/spend.cpp
View File

@@ -1153,7 +1153,18 @@ static util::Result<CreatedTransactionResult> CreateTransactionInternal(
// Do not, ever, assume that it's fine to change the fee rate if the user has explicitly
// provided one
if (coin_control.m_feerate && coin_selection_params.m_effective_feerate > *coin_control.m_feerate) {
return util::Error{strprintf(_("Fee rate (%s) is lower than the minimum fee rate setting (%s)"), coin_control.m_feerate->ToString(FeeRateFormat::SAT_VB), coin_selection_params.m_effective_feerate.ToString(FeeRateFormat::SAT_VB))};
const auto feerate_format = FeeRateFormat::SAT_VB;
auto msg{strprintf(_("Fee rate (%s) is lower than the minimum fee rate setting (%s)."),
coin_control.m_feerate->ToString(feerate_format),
coin_selection_params.m_effective_feerate.ToString(feerate_format))};
if (feeCalc.reason == FeeReason::REQUIRED) {
msg += strprintf(_("\nConsider modifying %s (%s) or %s (%s)."),
"-mintxfee",
wallet.m_min_fee.ToString(feerate_format),
"-minrelaytxfee",
wallet.chain().relayMinFee().ToString(feerate_format));
}
return util::Error{msg};
}
if (feeCalc.reason == FeeReason::FALLBACK && !wallet.m_allow_fallback_fee) {
// eventually allow a fallback fee