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syntax = "proto3";
import "lightning.proto";
import "signrpc/signer.proto";
package walletrpc;
option go_package = "github.com/lightningnetwork/lnd/lnrpc/walletrpc";
// WalletKit is a service that gives access to the core functionalities of the
// daemon's wallet.
service WalletKit {
/*
ListUnspent returns a list of all utxos spendable by the wallet with a
number of confirmations between the specified minimum and maximum. By
default, all utxos are listed. To list only the unconfirmed utxos, set
the unconfirmed_only to true.
*/
rpc ListUnspent (ListUnspentRequest) returns (ListUnspentResponse);
/*
LeaseOutput locks an output to the given ID, preventing it from being
available for any future coin selection attempts. The absolute time of the
lock's expiration is returned. The expiration of the lock can be extended by
successive invocations of this RPC. Outputs can be unlocked before their
expiration through `ReleaseOutput`.
*/
rpc LeaseOutput (LeaseOutputRequest) returns (LeaseOutputResponse);
/*
ReleaseOutput unlocks an output, allowing it to be available for coin
selection if it remains unspent. The ID should match the one used to
originally lock the output.
*/
rpc ReleaseOutput (ReleaseOutputRequest) returns (ReleaseOutputResponse);
/*
ListLeases lists all currently locked utxos.
*/
rpc ListLeases (ListLeasesRequest) returns (ListLeasesResponse);
/*
DeriveNextKey attempts to derive the *next* key within the key family
(account in BIP43) specified. This method should return the next external
child within this branch.
*/
rpc DeriveNextKey (KeyReq) returns (signrpc.KeyDescriptor);
/*
DeriveKey attempts to derive an arbitrary key specified by the passed
KeyLocator.
*/
rpc DeriveKey (signrpc.KeyLocator) returns (signrpc.KeyDescriptor);
/*
NextAddr returns the next unused address within the wallet.
*/
rpc NextAddr (AddrRequest) returns (AddrResponse);
/*
ListAccounts retrieves all accounts belonging to the wallet by default. A
name and key scope filter can be provided to filter through all of the
wallet accounts and return only those matching.
*/
rpc ListAccounts (ListAccountsRequest) returns (ListAccountsResponse);
/*
RequiredReserve returns the minimum amount of satoshis that should be kept
in the wallet in order to fee bump anchor channels if necessary. The value
scales with the number of public anchor channels but is capped at a maximum.
*/
rpc RequiredReserve (RequiredReserveRequest)
returns (RequiredReserveResponse);
/*
ListAddresses retrieves all the addresses along with their balance. An
account name filter can be provided to filter through all of the
wallet accounts and return the addresses of only those matching.
*/
rpc ListAddresses (ListAddressesRequest) returns (ListAddressesResponse);
/*
SignMessageWithAddr returns the compact signature (base64 encoded) created
with the private key of the provided address. This requires the address
to be solely based on a public key lock (no scripts). Obviously the internal
lnd wallet has to possess the private key of the address otherwise
an error is returned.
This method aims to provide full compatibility with the bitcoin-core and
btcd implementation. Bitcoin-core's algorithm is not specified in a
BIP and only applicable for legacy addresses. This method enhances the
signing for additional address types: P2WKH, NP2WKH, P2TR.
For P2TR addresses this represents a special case. ECDSA is used to create
a compact signature which makes the public key of the signature recoverable.
*/
rpc SignMessageWithAddr (SignMessageWithAddrRequest)
returns (SignMessageWithAddrResponse);
/*
VerifyMessageWithAddr returns the validity and the recovered public key of
the provided compact signature (base64 encoded). The verification is
twofold. First the validity of the signature itself is checked and then
it is verified that the recovered public key of the signature equals
the public key of the provided address. There is no dependence on the
private key of the address therefore also external addresses are allowed
to verify signatures.
Supported address types are P2PKH, P2WKH, NP2WKH, P2TR.
This method is the counterpart of the related signing method
(SignMessageWithAddr) and aims to provide full compatibility to
bitcoin-core's implementation. Although bitcoin-core/btcd only provide
this functionality for legacy addresses this function enhances it to
the address types: P2PKH, P2WKH, NP2WKH, P2TR.
The verification for P2TR addresses is a special case and requires the
ECDSA compact signature to compare the reovered public key to the internal
taproot key. The compact ECDSA signature format was used because there
are still no known compact signature schemes for schnorr signatures.
*/
rpc VerifyMessageWithAddr (VerifyMessageWithAddrRequest)
returns (VerifyMessageWithAddrResponse);
/*
ImportAccount imports an account backed by an account extended public key.
The master key fingerprint denotes the fingerprint of the root key
corresponding to the account public key (also known as the key with
derivation path m/). This may be required by some hardware wallets for
proper identification and signing.
The address type can usually be inferred from the key's version, but may be
required for certain keys to map them into the proper scope.
For BIP-0044 keys, an address type must be specified as we intend to not
support importing BIP-0044 keys into the wallet using the legacy
pay-to-pubkey-hash (P2PKH) scheme. A nested witness address type will force
the standard BIP-0049 derivation scheme, while a witness address type will
force the standard BIP-0084 derivation scheme.
For BIP-0049 keys, an address type must also be specified to make a
distinction between the standard BIP-0049 address schema (nested witness
pubkeys everywhere) and our own BIP-0049Plus address schema (nested pubkeys
externally, witness pubkeys internally).
NOTE: Events (deposits/spends) for keys derived from an account will only be
detected by lnd if they happen after the import. Rescans to detect past
events will be supported later on.
*/
rpc ImportAccount (ImportAccountRequest) returns (ImportAccountResponse);
/*
ImportPublicKey imports a public key as watch-only into the wallet. The
public key is converted into a simple address of the given type and that
address script is watched on chain. For Taproot keys, this will only watch
the BIP-0086 style output script. Use ImportTapscript for more advanced key
spend or script spend outputs.
NOTE: Events (deposits/spends) for a key will only be detected by lnd if
they happen after the import. Rescans to detect past events will be
supported later on.
*/
rpc ImportPublicKey (ImportPublicKeyRequest)
returns (ImportPublicKeyResponse);
/*
ImportTapscript imports a Taproot script and internal key and adds the
resulting Taproot output key as a watch-only output script into the wallet.
For BIP-0086 style Taproot keys (no root hash commitment and no script spend
path) use ImportPublicKey.
NOTE: Events (deposits/spends) for a key will only be detected by lnd if
they happen after the import. Rescans to detect past events will be
supported later on.
NOTE: Taproot keys imported through this RPC currently _cannot_ be used for
funding PSBTs. Only tracking the balance and UTXOs is currently supported.
*/
rpc ImportTapscript (ImportTapscriptRequest)
returns (ImportTapscriptResponse);
/*
PublishTransaction attempts to publish the passed transaction to the
network. Once this returns without an error, the wallet will continually
attempt to re-broadcast the transaction on start up, until it enters the
chain.
*/
rpc PublishTransaction (Transaction) returns (PublishResponse);
/*
SendOutputs is similar to the existing sendmany call in Bitcoind, and
allows the caller to create a transaction that sends to several outputs at
once. This is ideal when wanting to batch create a set of transactions.
*/
rpc SendOutputs (SendOutputsRequest) returns (SendOutputsResponse);
/*
EstimateFee attempts to query the internal fee estimator of the wallet to
determine the fee (in sat/kw) to attach to a transaction in order to
achieve the confirmation target.
*/
rpc EstimateFee (EstimateFeeRequest) returns (EstimateFeeResponse);
/*
PendingSweeps returns lists of on-chain outputs that lnd is currently
attempting to sweep within its central batching engine. Outputs with similar
fee rates are batched together in order to sweep them within a single
transaction.
NOTE: Some of the fields within PendingSweepsRequest are not guaranteed to
remain supported. This is an advanced API that depends on the internals of
the UtxoSweeper, so things may change.
*/
rpc PendingSweeps (PendingSweepsRequest) returns (PendingSweepsResponse);
/*
BumpFee bumps the fee of an arbitrary input within a transaction. This RPC
takes a different approach than bitcoind's bumpfee command. lnd has a
central batching engine in which inputs with similar fee rates are batched
together to save on transaction fees. Due to this, we cannot rely on
bumping the fee on a specific transaction, since transactions can change at
any point with the addition of new inputs. The list of inputs that
currently exist within lnd's central batching engine can be retrieved
through the PendingSweeps RPC.
When bumping the fee of an input that currently exists within lnd's central
batching engine, a higher fee transaction will be created that replaces the
lower fee transaction through the Replace-By-Fee (RBF) policy. If it
This RPC also serves useful when wanting to perform a Child-Pays-For-Parent
(CPFP), where the child transaction pays for its parent's fee. This can be
done by specifying an outpoint within the low fee transaction that is under
the control of the wallet.
The fee preference can be expressed either as a specific fee rate or a delta
of blocks in which the output should be swept on-chain within. If a fee
preference is not explicitly specified, then an error is returned.
Note that this RPC currently doesn't perform any validation checks on the
fee preference being provided. For now, the responsibility of ensuring that
the new fee preference is sufficient is delegated to the user.
*/
rpc BumpFee (BumpFeeRequest) returns (BumpFeeResponse);
/*
ListSweeps returns a list of the sweep transactions our node has produced.
Note that these sweeps may not be confirmed yet, as we record sweeps on
broadcast, not confirmation.
*/
rpc ListSweeps (ListSweepsRequest) returns (ListSweepsResponse);
/*
LabelTransaction adds a label to a transaction. If the transaction already
has a label the call will fail unless the overwrite bool is set. This will
overwrite the exiting transaction label. Labels must not be empty, and
cannot exceed 500 characters.
*/
rpc LabelTransaction (LabelTransactionRequest)
returns (LabelTransactionResponse);
/*
FundPsbt creates a fully populated PSBT that contains enough inputs to fund
the outputs specified in the template. There are two ways of specifying a
template: Either by passing in a PSBT with at least one output declared or
by passing in a raw TxTemplate message.
If there are no inputs specified in the template, coin selection is
performed automatically. If the template does contain any inputs, it is
assumed that full coin selection happened externally and no additional
inputs are added. If the specified inputs aren't enough to fund the outputs
with the given fee rate, an error is returned.
After either selecting or verifying the inputs, all input UTXOs are locked
with an internal app ID.
NOTE: If this method returns without an error, it is the caller's
responsibility to either spend the locked UTXOs (by finalizing and then
publishing the transaction) or to unlock/release the locked UTXOs in case of
an error on the caller's side.
*/
rpc FundPsbt (FundPsbtRequest) returns (FundPsbtResponse);
/*
SignPsbt expects a partial transaction with all inputs and outputs fully
declared and tries to sign all unsigned inputs that have all required fields
(UTXO information, BIP32 derivation information, witness or sig scripts)
set.
If no error is returned, the PSBT is ready to be given to the next signer or
to be finalized if lnd was the last signer.
NOTE: This RPC only signs inputs (and only those it can sign), it does not
perform any other tasks (such as coin selection, UTXO locking or
input/output/fee value validation, PSBT finalization). Any input that is
incomplete will be skipped.
*/
rpc SignPsbt (SignPsbtRequest) returns (SignPsbtResponse);
/*
FinalizePsbt expects a partial transaction with all inputs and outputs fully
declared and tries to sign all inputs that belong to the wallet. Lnd must be
the last signer of the transaction. That means, if there are any unsigned
non-witness inputs or inputs without UTXO information attached or inputs
without witness data that do not belong to lnd's wallet, this method will
fail. If no error is returned, the PSBT is ready to be extracted and the
final TX within to be broadcast.
NOTE: This method does NOT publish the transaction once finalized. It is the
caller's responsibility to either publish the transaction on success or
unlock/release any locked UTXOs in case of an error in this method.
*/
rpc FinalizePsbt (FinalizePsbtRequest) returns (FinalizePsbtResponse);
}
message ListUnspentRequest {
// The minimum number of confirmations to be included.
int32 min_confs = 1;
// The maximum number of confirmations to be included.
int32 max_confs = 2;
// An optional filter to only include outputs belonging to an account.
string account = 3;
/*
When min_confs and max_confs are zero, setting false implicitly
overrides max_confs to be MaxInt32, otherwise max_confs remains
zero. An error is returned if the value is true and both min_confs
and max_confs are non-zero. (default: false)
*/
bool unconfirmed_only = 4;
}
message ListUnspentResponse {
// A list of utxos satisfying the specified number of confirmations.
repeated lnrpc.Utxo utxos = 1;
}
message LeaseOutputRequest {
/*
An ID of 32 random bytes that must be unique for each distinct application
using this RPC which will be used to bound the output lease to.
*/
bytes id = 1;
// The identifying outpoint of the output being leased.
lnrpc.OutPoint outpoint = 2;
// The time in seconds before the lock expires. If set to zero, the default
// lock duration is used.
uint64 expiration_seconds = 3;
}
message LeaseOutputResponse {
/*
The absolute expiration of the output lease represented as a unix timestamp.
*/
uint64 expiration = 1;
}
message ReleaseOutputRequest {
// The unique ID that was used to lock the output.
bytes id = 1;
// The identifying outpoint of the output being released.
lnrpc.OutPoint outpoint = 2;
}
message ReleaseOutputResponse {
}
message KeyReq {
/*
Is the key finger print of the root pubkey that this request is targeting.
This allows the WalletKit to possibly serve out keys for multiple HD chains
via public derivation.
*/
int32 key_finger_print = 1;
/*
The target key family to derive a key from. In other contexts, this is
known as the "account".
*/
int32 key_family = 2;
}
message AddrRequest {
/*
The name of the account to retrieve the next address of. If empty, the
default wallet account is used.
*/
string account = 1;
/*
The type of address to derive.
*/
AddressType type = 2;
/*
Whether a change address should be derived.
*/
bool change = 3;
}
message AddrResponse {
/*
The address encoded using a bech32 format.
*/
string addr = 1;
}
enum AddressType {
UNKNOWN = 0;
WITNESS_PUBKEY_HASH = 1;
NESTED_WITNESS_PUBKEY_HASH = 2;
HYBRID_NESTED_WITNESS_PUBKEY_HASH = 3;
TAPROOT_PUBKEY = 4;
}
message Account {
// The name used to identify the account.
string name = 1;
// The type of addresses the account supports.
AddressType address_type = 2;
/*
The public key backing the account that all keys are derived from
represented as an extended key. This will always be empty for the default
imported account in which single public keys are imported into.
*/
string extended_public_key = 3;
/*
The fingerprint of the root key from which the account public key was
derived from. This will always be zero for the default imported account in
which single public keys are imported into. The bytes are in big-endian
order.
*/
bytes master_key_fingerprint = 4;
/*
The derivation path corresponding to the account public key. This will
always be empty for the default imported account in which single public keys
are imported into.
*/
string derivation_path = 5;
/*
The number of keys derived from the external branch of the account public
key. This will always be zero for the default imported account in which
single public keys are imported into.
*/
uint32 external_key_count = 6;
/*
The number of keys derived from the internal branch of the account public
key. This will always be zero for the default imported account in which
single public keys are imported into.
*/
uint32 internal_key_count = 7;
// Whether the wallet stores private keys for the account.
bool watch_only = 8;
}
message AddressProperty {
/*
The address encoded using the appropriate format depending on the
address type (base58, bech32, bech32m).
Note that lnd's internal/custom keys for channels and other
functionality are derived from the same scope. Since they
aren't really used as addresses and will never have an
on-chain balance, we'll show the public key instead (only if
the show_custom_accounts flag is provided).
*/
string address = 1;
// Denotes if the address is a change address.
bool is_internal = 2;
// The balance of the address.
int64 balance = 3;
}
message AccountWithAddresses {
// The name used to identify the account.
string name = 1;
// The type of addresses the account supports.
AddressType address_type = 2;
/*
The derivation path corresponding to the account public key. This will
always be empty for the default imported account in which single public keys
are imported into.
*/
string derivation_path = 3;
/*
List of address, its type internal/external & balance.
Note that the order of addresses will be random and not according to the
derivation index, since that information is not stored by the underlying
wallet.
*/
repeated AddressProperty addresses = 4;
}
message ListAccountsRequest {
// An optional filter to only return accounts matching this name.
string name = 1;
// An optional filter to only return accounts matching this address type.
AddressType address_type = 2;
}
message ListAccountsResponse {
repeated Account accounts = 1;
}
message RequiredReserveRequest {
// The number of additional channels the user would like to open.
uint32 additional_public_channels = 1;
}
message RequiredReserveResponse {
// The amount of reserve required.
int64 required_reserve = 1;
}
message ListAddressesRequest {
// An optional filter to only return addresses matching this account.
string account_name = 1;
// An optional flag to return LND's custom accounts (Purpose=1017)
// public key along with other addresses.
bool show_custom_accounts = 2;
}
message ListAddressesResponse {
// A list of all the accounts and their addresses.
repeated AccountWithAddresses account_with_addresses = 1;
}
message SignMessageWithAddrRequest {
// The message to be signed. When using REST, this field must be encoded as
// base64.
bytes msg = 1;
// The address which will be used to look up the private key and sign the
// corresponding message.
string addr = 2;
}
message SignMessageWithAddrResponse {
// The compact ECDSA signature for the given message encoded in base64.
string signature = 1;
}
message VerifyMessageWithAddrRequest {
// The message to be signed. When using REST, this field must be encoded as
// base64.
bytes msg = 1;
// The compact ECDSA signature to be verified over the given message
// ecoded in base64.
string signature = 2;
// The address which will be used to look up the public key and verify the
// the signature.
string addr = 3;
}
message VerifyMessageWithAddrResponse {
// Whether the signature was valid over the given message.
bool valid = 1;
// The pubkey recovered from the signature.
bytes pubkey = 2;
}
message ImportAccountRequest {
// A name to identify the account with.
string name = 1;
/*
A public key that corresponds to a wallet account represented as an extended
key. It must conform to a derivation path of the form
m/purpose'/coin_type'/account'.
*/
string extended_public_key = 2;
/*
The fingerprint of the root key (also known as the key with derivation path
m/) from which the account public key was derived from. This may be required
by some hardware wallets for proper identification and signing. The bytes
must be in big-endian order.
*/
bytes master_key_fingerprint = 3;
/*
An address type is only required when the extended account public key has a
legacy version (xpub, tpub, etc.), such that the wallet cannot detect what
address scheme it belongs to.
*/
AddressType address_type = 4;
/*
Whether a dry run should be attempted when importing the account. This
serves as a way to confirm whether the account is being imported correctly
by returning the first N addresses for the external and internal branches of
the account. If these addresses match as expected, then it should be safe to
import the account as is.
*/
bool dry_run = 5;
}
message ImportAccountResponse {
// The details of the imported account.
Account account = 1;
/*
The first N addresses that belong to the external branch of the account.
The external branch is typically used for external non-change addresses.
These are only returned if a dry run was specified within the request.
*/
repeated string dry_run_external_addrs = 2;
/*
The first N addresses that belong to the internal branch of the account.
The internal branch is typically used for change addresses. These are only
returned if a dry run was specified within the request.
*/
repeated string dry_run_internal_addrs = 3;
}
message ImportPublicKeyRequest {
// A compressed public key represented as raw bytes.
bytes public_key = 1;
// The type of address that will be generated from the public key.
AddressType address_type = 2;
}
message ImportPublicKeyResponse {
}
message ImportTapscriptRequest {
/*
The internal public key, serialized as 32-byte x-only public key.
*/
bytes internal_public_key = 1;
oneof script {
/*
The full script tree with all individual leaves is known and the root
hash can be constructed from the full tree directly.
*/
TapscriptFullTree full_tree = 2;
/*
Only a single script leaf is known. To construct the root hash, the full
inclusion proof must also be provided.
*/
TapscriptPartialReveal partial_reveal = 3;
/*
Only the root hash of the Taproot script tree (or other form of Taproot
commitment) is known.
*/
bytes root_hash_only = 4;
/*
Only the final, tweaked Taproot key is known and no additional
information about the internal key or type of tweak that was used to
derive it. When this is set, the wallet treats the key in
internal_public_key as the Taproot key directly. This can be useful for
tracking arbitrary Taproot outputs without the goal of ever being able
to spend from them through the internal wallet.
*/
bool full_key_only = 5;
}
}
message TapscriptFullTree {
/*
The complete, ordered list of all tap leaves of the tree.
*/
repeated TapLeaf all_leaves = 1;
}
message TapLeaf {
// The leaf version. Should be 0xc0 (192) in case of a SegWit v1 script.
uint32 leaf_version = 1;
// The script of the tap leaf.
bytes script = 2;
}
message TapscriptPartialReveal {
// The tap leaf that is known and will be revealed.
TapLeaf revealed_leaf = 1;
// The BIP-0341 serialized inclusion proof that is required to prove that
// the revealed leaf is part of the tree. This contains 0..n blocks of 32
// bytes. If the tree only contained a single leaf (which is the revealed
// leaf), this can be empty.
bytes full_inclusion_proof = 2;
}
message ImportTapscriptResponse {
/*
The resulting pay-to-Taproot address that represents the imported internal
key with the script committed to it.
*/
string p2tr_address = 1;
}
message Transaction {
/*
The raw serialized transaction. Despite the field name, this does need to be
specified in raw bytes (or base64 encoded when using REST) and not in hex.
To not break existing software, the field can't simply be renamed.
*/
bytes tx_hex = 1;
/*
An optional label to save with the transaction. Limited to 500 characters.
*/
string label = 2;
}
message PublishResponse {
/*
If blank, then no error occurred and the transaction was successfully
published. If not the empty string, then a string representation of the
broadcast error.
TODO(roasbeef): map to a proper enum type
*/
string publish_error = 1;
}
message SendOutputsRequest {
/*
The number of satoshis per kilo weight that should be used when crafting
this transaction.
*/
int64 sat_per_kw = 1;
/*
A slice of the outputs that should be created in the transaction produced.
*/
repeated signrpc.TxOut outputs = 2;
// An optional label for the transaction, limited to 500 characters.
string label = 3;
// The minimum number of confirmations each one of your outputs used for
// the transaction must satisfy.
int32 min_confs = 4;
// Whether unconfirmed outputs should be used as inputs for the transaction.
bool spend_unconfirmed = 5;
}
message SendOutputsResponse {
/*
The serialized transaction sent out on the network.
*/
bytes raw_tx = 1;
}
message EstimateFeeRequest {
/*
The number of confirmations to shoot for when estimating the fee.
*/
int32 conf_target = 1;
}
message EstimateFeeResponse {
/*
The amount of satoshis per kw that should be used in order to reach the
confirmation target in the request.
*/
int64 sat_per_kw = 1;
}
enum WitnessType {
UNKNOWN_WITNESS = 0;
/*
A witness that allows us to spend the output of a commitment transaction
after a relative lock-time lockout.
*/
COMMITMENT_TIME_LOCK = 1;
/*
A witness that allows us to spend a settled no-delay output immediately on a
counterparty's commitment transaction.
*/
COMMITMENT_NO_DELAY = 2;
/*
A witness that allows us to sweep the settled output of a malicious
counterparty's who broadcasts a revoked commitment transaction.
*/
COMMITMENT_REVOKE = 3;
/*
A witness that allows us to sweep an HTLC which we offered to the remote
party in the case that they broadcast a revoked commitment state.
*/
HTLC_OFFERED_REVOKE = 4;
/*
A witness that allows us to sweep an HTLC output sent to us in the case that
the remote party broadcasts a revoked commitment state.
*/
HTLC_ACCEPTED_REVOKE = 5;
/*
A witness that allows us to sweep an HTLC output that we extended to a
party, but was never fulfilled. This HTLC output isn't directly on the
commitment transaction, but is the result of a confirmed second-level HTLC
transaction. As a result, we can only spend this after a CSV delay.
*/
HTLC_OFFERED_TIMEOUT_SECOND_LEVEL = 6;
/*
A witness that allows us to sweep an HTLC output that was offered to us, and
for which we have a payment preimage. This HTLC output isn't directly on our
commitment transaction, but is the result of confirmed second-level HTLC
transaction. As a result, we can only spend this after a CSV delay.
*/
HTLC_ACCEPTED_SUCCESS_SECOND_LEVEL = 7;
/*
A witness that allows us to sweep an HTLC that we offered to the remote
party which lies in the commitment transaction of the remote party. We can
spend this output after the absolute CLTV timeout of the HTLC as passed.
*/
HTLC_OFFERED_REMOTE_TIMEOUT = 8;
/*
A witness that allows us to sweep an HTLC that was offered to us by the
remote party. We use this witness in the case that the remote party goes to
chain, and we know the pre-image to the HTLC. We can sweep this without any
additional timeout.
*/
HTLC_ACCEPTED_REMOTE_SUCCESS = 9;
/*
A witness that allows us to sweep an HTLC from the remote party's commitment
transaction in the case that the broadcast a revoked commitment, but then
also immediately attempt to go to the second level to claim the HTLC.
*/
HTLC_SECOND_LEVEL_REVOKE = 10;
/*
A witness type that allows us to spend a regular p2wkh output that's sent to
an output which is under complete control of the backing wallet.
*/
WITNESS_KEY_HASH = 11;
/*
A witness type that allows us to sweep an output that sends to a nested P2SH
script that pays to a key solely under our control.
*/
NESTED_WITNESS_KEY_HASH = 12;
/*
A witness type that allows us to spend our anchor on the commitment
transaction.
*/
COMMITMENT_ANCHOR = 13;
/*
A witness type that is similar to the COMMITMENT_NO_DELAY type,
but it omits the tweak that randomizes the key we need to
spend with a channel peer supplied set of randomness.
*/
COMMITMENT_NO_DELAY_TWEAKLESS = 14;
/*
A witness type that allows us to spend our output on the counterparty's
commitment transaction after a confirmation.
*/
COMMITMENT_TO_REMOTE_CONFIRMED = 15;
/*
A witness type that allows us to sweep an HTLC output that we extended
to a party, but was never fulfilled. This _is_ the HTLC output directly
on our commitment transaction, and the input to the second-level HTLC
timeout transaction. It can only be spent after CLTV expiry, and
commitment confirmation.
*/
HTLC_OFFERED_TIMEOUT_SECOND_LEVEL_INPUT_CONFIRMED = 16;
/*
A witness type that allows us to sweep an HTLC output that was offered
to us, and for which we have a payment preimage. This _is_ the HTLC
output directly on our commitment transaction, and the input to the
second-level HTLC success transaction. It can only be spent after the
commitment has confirmed.
*/
HTLC_ACCEPTED_SUCCESS_SECOND_LEVEL_INPUT_CONFIRMED = 17;
/*
A witness type that allows us to spend our output on our local
commitment transaction after a relative and absolute lock-time lockout as
part of the script enforced lease commitment type.
*/
LEASE_COMMITMENT_TIME_LOCK = 18;
/*
A witness type that allows us to spend our output on the counterparty's
commitment transaction after a confirmation and absolute locktime as part
of the script enforced lease commitment type.
*/
LEASE_COMMITMENT_TO_REMOTE_CONFIRMED = 19;
/*
A witness type that allows us to sweep an HTLC output that we extended
to a party, but was never fulfilled. This HTLC output isn't directly on
the commitment transaction, but is the result of a confirmed second-level
HTLC transaction. As a result, we can only spend this after a CSV delay
and CLTV locktime as part of the script enforced lease commitment type.
*/
LEASE_HTLC_OFFERED_TIMEOUT_SECOND_LEVEL = 20;
/*
A witness type that allows us to sweep an HTLC output that was offered
to us, and for which we have a payment preimage. This HTLC output isn't
directly on our commitment transaction, but is the result of confirmed
second-level HTLC transaction. As a result, we can only spend this after
a CSV delay and CLTV locktime as part of the script enforced lease
commitment type.
*/
LEASE_HTLC_ACCEPTED_SUCCESS_SECOND_LEVEL = 21;
/*
A witness type that allows us to spend a regular p2tr output that's sent
to an output which is under complete control of the backing wallet.
*/
TAPROOT_PUB_KEY_SPEND = 22;
}
message PendingSweep {
// The outpoint of the output we're attempting to sweep.
lnrpc.OutPoint outpoint = 1;
// The witness type of the output we're attempting to sweep.
WitnessType witness_type = 2;
// The value of the output we're attempting to sweep.
uint32 amount_sat = 3;
/*
Deprecated, use sat_per_vbyte.
The fee rate we'll use to sweep the output, expressed in sat/vbyte. The fee
rate is only determined once a sweeping transaction for the output is
created, so it's possible for this to be 0 before this.
*/
uint32 sat_per_byte = 4 [deprecated = true];
// The number of broadcast attempts we've made to sweep the output.
uint32 broadcast_attempts = 5;
/*
The next height of the chain at which we'll attempt to broadcast the
sweep transaction of the output.
*/
uint32 next_broadcast_height = 6;
// The requested confirmation target for this output.
uint32 requested_conf_target = 8;
// Deprecated, use requested_sat_per_vbyte.
// The requested fee rate, expressed in sat/vbyte, for this output.
uint32 requested_sat_per_byte = 9 [deprecated = true];
/*
The fee rate we'll use to sweep the output, expressed in sat/vbyte. The fee
rate is only determined once a sweeping transaction for the output is
created, so it's possible for this to be 0 before this.
*/
uint64 sat_per_vbyte = 10;
// The requested fee rate, expressed in sat/vbyte, for this output.
uint64 requested_sat_per_vbyte = 11;
/*
Whether this input must be force-swept. This means that it is swept even
if it has a negative yield.
*/
bool force = 7;
}
message PendingSweepsRequest {
}
message PendingSweepsResponse {
/*
The set of outputs currently being swept by lnd's central batching engine.
*/
repeated PendingSweep pending_sweeps = 1;
}
message BumpFeeRequest {
// The input we're attempting to bump the fee of.
lnrpc.OutPoint outpoint = 1;
// The target number of blocks that the input should be spent within.
uint32 target_conf = 2;
/*
Deprecated, use sat_per_vbyte.
The fee rate, expressed in sat/vbyte, that should be used to spend the input
with.
*/
uint32 sat_per_byte = 3 [deprecated = true];
/*
Whether this input must be force-swept. This means that it is swept even
if it has a negative yield.
*/
bool force = 4;
/*
The fee rate, expressed in sat/vbyte, that should be used to spend the input
with.
*/
uint64 sat_per_vbyte = 5;
}
message BumpFeeResponse {
}
message ListSweepsRequest {
/*
Retrieve the full sweep transaction details. If false, only the sweep txids
will be returned. Note that some sweeps that LND publishes will have been
replaced-by-fee, so will not be included in this output.
*/
bool verbose = 1;
/*
The start height to use when fetching sweeps. If not specified (0), the
result will start from the earliest sweep. If set to -1 the result will
only include unconfirmed sweeps (at the time of the call).
*/
int32 start_height = 2;
}
message ListSweepsResponse {
message TransactionIDs {
/*
Reversed, hex-encoded string representing the transaction ids of the
sweeps that our node has broadcast. Note that these transactions may
not have confirmed yet, we record sweeps on broadcast, not confirmation.
*/
repeated string transaction_ids = 1;
}
oneof sweeps {
lnrpc.TransactionDetails transaction_details = 1;
TransactionIDs transaction_ids = 2;
}
}
message LabelTransactionRequest {
// The txid of the transaction to label. Note: When using gRPC, the bytes
// must be in little-endian (reverse) order.
bytes txid = 1;
// The label to add to the transaction, limited to 500 characters.
string label = 2;
// Whether to overwrite the existing label, if it is present.
bool overwrite = 3;
}
message LabelTransactionResponse {
}
// The possible change address types for default accounts and single imported
// public keys. By default, P2WPKH will be used. We don't provide the
// possibility to choose P2PKH as it is a legacy key scope, nor NP2WPKH as
// no key scope permits to do so. For custom accounts, no change type should
// be provided as the coin selection key scope will always be used to generate
// the change address.
enum ChangeAddressType {
// CHANGE_ADDRESS_TYPE_UNSPECIFIED indicates that no change address type is
// provided. We will then use P2WPKH address type for change (BIP0084 key
// scope).
CHANGE_ADDRESS_TYPE_UNSPECIFIED = 0;
// CHANGE_ADDRESS_TYPE_P2TR indicates to use P2TR address for change output
// (BIP0086 key scope).
CHANGE_ADDRESS_TYPE_P2TR = 1;
}
message FundPsbtRequest {
oneof template {
/*
Use an existing PSBT packet as the template for the funded PSBT.
The packet must contain at least one non-dust output. If one or more
inputs are specified, no coin selection is performed. In that case every
input must be an UTXO known to the wallet that has not been locked
before. The sum of all inputs must be sufficiently greater than the sum
of all outputs to pay a miner fee with the specified fee rate. A change
output is added to the PSBT if necessary.
*/
bytes psbt = 1;
/*
Use the outputs and optional inputs from this raw template.
*/
TxTemplate raw = 2;
}
oneof fees {
/*
The target number of blocks that the transaction should be confirmed in.
*/
uint32 target_conf = 3;
/*
The fee rate, expressed in sat/vbyte, that should be used to spend the
input with.
*/
uint64 sat_per_vbyte = 4;
}
/*
The name of the account to fund the PSBT with. If empty, the default wallet
account is used.
*/
string account = 5;
// The minimum number of confirmations each one of your outputs used for
// the transaction must satisfy.
int32 min_confs = 6;
// Whether unconfirmed outputs should be used as inputs for the transaction.
bool spend_unconfirmed = 7;
// The address type for the change. If empty, P2WPKH addresses will be used
// for default accounts and single imported public keys. For custom
// accounts, no change type should be provided as the coin selection key
// scope will always be used to generate the change address.
ChangeAddressType change_type = 8;
}
message FundPsbtResponse {
/*
The funded but not yet signed PSBT packet.
*/
bytes funded_psbt = 1;
/*
The index of the added change output or -1 if no change was left over.
*/
int32 change_output_index = 2;
/*
The list of lock leases that were acquired for the inputs in the funded PSBT
packet.
*/
repeated UtxoLease locked_utxos = 3;
}
message TxTemplate {
/*
An optional list of inputs to use. Every input must be an UTXO known to the
wallet that has not been locked before. The sum of all inputs must be
sufficiently greater than the sum of all outputs to pay a miner fee with the
fee rate specified in the parent message.
If no inputs are specified, coin selection will be performed instead and
inputs of sufficient value will be added to the resulting PSBT.
*/
repeated lnrpc.OutPoint inputs = 1;
/*
A map of all addresses and the amounts to send to in the funded PSBT.
*/
map outputs = 2;
}
message UtxoLease {
/*
A 32 byte random ID that identifies the lease.
*/
bytes id = 1;
// The identifying outpoint of the output being leased.
lnrpc.OutPoint outpoint = 2;
/*
The absolute expiration of the output lease represented as a unix timestamp.
*/
uint64 expiration = 3;
/*
The public key script of the leased output.
*/
bytes pk_script = 4;
/*
The value of the leased output in satoshis.
*/
uint64 value = 5;
}
message SignPsbtRequest {
/*
The PSBT that should be signed. The PSBT must contain all required inputs,
outputs, UTXO data and custom fields required to identify the signing key.
*/
bytes funded_psbt = 1;
}
message SignPsbtResponse {
// The signed transaction in PSBT format.
bytes signed_psbt = 1;
// The indices of signed inputs.
repeated uint32 signed_inputs = 2;
}
message FinalizePsbtRequest {
/*
A PSBT that should be signed and finalized. The PSBT must contain all
required inputs, outputs, UTXO data and partial signatures of all other
signers.
*/
bytes funded_psbt = 1;
/*
The name of the account to finalize the PSBT with. If empty, the default
wallet account is used.
*/
string account = 5;
}
message FinalizePsbtResponse {
// The fully signed and finalized transaction in PSBT format.
bytes signed_psbt = 1;
// The fully signed and finalized transaction in the raw wire format.
bytes raw_final_tx = 2;
}
message ListLeasesRequest {
}
message ListLeasesResponse {
// The list of currently leased utxos.
repeated UtxoLease locked_utxos = 1;
}
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