Expose watchtower APIs on Node - #1031
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Add Node methods so watchtower clients (e.g. an Eye of Satoshi / rust-teos tower) can protect node funds while the node is offline: counterparty_commitment_txs_from_update, initial_counterparty_commitment_tx, sign_to_local_justice_tx. Only plain lightning/bitcoin types cross the API boundary; internal type aliases stay pub(crate). Limitation: to_local output only - revoked HTLC outputs cannot be signed (mirrors ChannelMonitor::sign_to_local_justice_tx).
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👋 Hi! I see this is a draft PR. |
This was referenced Aug 6, 2026
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Summary
Node::counterparty_commitment_txs_from_update,Node::initial_counterparty_commitment_tx, andNode::sign_to_local_justice_txso watchtower clients (e.g. an Eye of Satoshi tower) can build + finalize justice transactions while the node is offlinepub(crate), which is what shaped this API (accessor methods, not a rawChainMonitorhandle)ChannelMonitorNotFound,OnchainTxSigningFailed; UniFFI binding updatedto_localoutput only, mirrorsChannelMonitor::sign_to_local_justice_tx- revoked HTLC outputs cannot be signedTest plan
cargo check,cargo check --tests,cargo fmt --checkgreen locally (clippy on nightly hits pre-existing macro errors on clean HEAD too)DRAFT: soliciting API-shape feedback before marking ready.