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authorAdrien Hopkins <ahopk127@my.yorku.ca>2022-06-13 09:40:07 -0500
committerAdrien Hopkins <ahopk127@my.yorku.ca>2022-06-13 09:40:07 -0500
commit2498ed9a93405c999c9336e0cb18a187716c1d03 (patch)
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parent52716276db81bf8b9559cc2b361927d7be836897 (diff)
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syntax = "proto3";

package lnrpc;

option go_package = "github.com/lightningnetwork/lnd/lnrpc";

/**
 * Comments in this file will be directly parsed into the API
 * Documentation as descriptions of the associated method, message, or field.
 * These descriptions should go right above the definition of the object, and
 * can be in either block or /// comment format. 
 * 
 * One edge case exists where a // comment followed by a /// comment in the
 * next line will cause the description not to show up in the documentation. In
 * that instance, simply separate the two comments with a blank line.
 * 
 * An RPC method can be matched to an lncli command by placing a line in the
 * beginning of the description in exactly the following format:
 * lncli: `methodname`
 * 
 * Failure to specify the exact name of the command will cause documentation
 * generation to fail.
 * 
 * More information on how exactly the gRPC documentation is generated from
 * this proto file can be found here:
 * https://github.com/lightninglabs/lightning-api
 */

// The WalletUnlocker service is used to set up a wallet password for
// lnd at first startup, and unlock a previously set up wallet.
service WalletUnlocker {
    /**
    GenSeed is the first method that should be used to instantiate a new lnd
    instance. This method allows a caller to generate a new aezeed cipher seed
    given an optional passphrase. If provided, the passphrase will be necessary
    to decrypt the cipherseed to expose the internal wallet seed.

    Once the cipherseed is obtained and verified by the user, the InitWallet
    method should be used to commit the newly generated seed, and create the
    wallet.
    */
    rpc GenSeed(GenSeedRequest) returns (GenSeedResponse) {
        option (google.api.http) = {
            get: "/v1/genseed"
        };
    }

    /** 
    InitWallet is used when lnd is starting up for the first time to fully
    initialize the daemon and its internal wallet. At the very least a wallet
    password must be provided. This will be used to encrypt sensitive material
    on disk.

    In the case of a recovery scenario, the user can also specify their aezeed
    mnemonic and passphrase. If set, then the daemon will use this prior state
    to initialize its internal wallet.

    Alternatively, this can be used along with the GenSeed RPC to obtain a
    seed, then present it to the user. Once it has been verified by the user,
    the seed can be fed into this RPC in order to commit the new wallet.
    */
    rpc InitWallet(InitWalletRequest) returns (InitWalletResponse) {
        option (google.api.http) = {
            post: "/v1/initwallet"
            body: "*"
        };
    }

    /** lncli: `unlock`
    UnlockWallet is used at startup of lnd to provide a password to unlock
    the wallet database.
    */
    rpc UnlockWallet(UnlockWalletRequest) returns (UnlockWalletResponse) {
        option (google.api.http) = {
            post: "/v1/unlockwallet"
            body: "*"
        };
    }

    /** lncli: `changepassword`
    ChangePassword changes the password of the encrypted wallet. This will
    automatically unlock the wallet database if successful.
    */
    rpc ChangePassword (ChangePasswordRequest) returns (ChangePasswordResponse) {
        option (google.api.http) = {
            post: "/v1/changepassword"
            body: "*"
        };
    }
}

message GenSeedRequest {
    /**
    aezeed_passphrase is an optional user provided passphrase that will be used
    to encrypt the generated aezeed cipher seed. When using REST, this field
    must be encoded as base64.
    */
    bytes aezeed_passphrase = 1;

    /**
    seed_entropy is an optional 16-bytes generated via CSPRNG. If not
    specified, then a fresh set of randomness will be used to create the seed.
    When using REST, this field must be encoded as base64.
    */
    bytes seed_entropy = 2;
}
message GenSeedResponse {
    /**
    cipher_seed_mnemonic is a 24-word mnemonic that encodes a prior aezeed
    cipher seed obtained by the user. This field is optional, as if not
    provided, then the daemon will generate a new cipher seed for the user.
    Otherwise, then the daemon will attempt to recover the wallet state linked
    to this cipher seed.
    */
    repeated string cipher_seed_mnemonic = 1;

    /**
    enciphered_seed are the raw aezeed cipher seed bytes. This is the raw
    cipher text before run through our mnemonic encoding scheme.
    */
    bytes enciphered_seed = 2;
}

message InitWalletRequest {
    /**
    wallet_password is the passphrase that should be used to encrypt the
    wallet. This MUST be at least 8 chars in length. After creation, this
    password is required to unlock the daemon. When using REST, this field
    must be encoded as base64.
    */
    bytes wallet_password = 1;

    /**
    cipher_seed_mnemonic is a 24-word mnemonic that encodes a prior aezeed
    cipher seed obtained by the user. This may have been generated by the
    GenSeed method, or be an existing seed.
    */
    repeated string cipher_seed_mnemonic = 2;

    /**
    aezeed_passphrase is an optional user provided passphrase that will be used
    to encrypt the generated aezeed cipher seed. When using REST, this field
    must be encoded as base64.
    */
    bytes aezeed_passphrase = 3;

    /**
    recovery_window is an optional argument specifying the address lookahead
    when restoring a wallet seed. The recovery window applies to each
    individual branch of the BIP44 derivation paths. Supplying a recovery
    window of zero indicates that no addresses should be recovered, such after
    the first initialization of the wallet.
    */
    int32 recovery_window = 4;

    /**
    channel_backups is an optional argument that allows clients to recover the
    settled funds within a set of channels. This should be populated if the
    user was unable to close out all channels and sweep funds before partial or
    total data loss occurred. If specified, then after on-chain recovery of
    funds, lnd begin to carry out the data loss recovery protocol in order to
    recover the funds in each channel from a remote force closed transaction.
    */
    ChanBackupSnapshot channel_backups = 5;
}
message InitWalletResponse {
}

message UnlockWalletRequest {
    /**
    wallet_password should be the current valid passphrase for the daemon. This
    will be required to decrypt on-disk material that the daemon requires to
    function properly. When using REST, this field must be encoded as base64.
    */
    bytes wallet_password = 1;

    /**
    recovery_window is an optional argument specifying the address lookahead
    when restoring a wallet seed. The recovery window applies to each
    individual branch of the BIP44 derivation paths. Supplying a recovery
    window of zero indicates that no addresses should be recovered, such after
    the first initialization of the wallet.
    */
    int32 recovery_window = 2;

    /**
    channel_backups is an optional argument that allows clients to recover the
    settled funds within a set of channels. This should be populated if the
    user was unable to close out all channels and sweep funds before partial or
    total data loss occurred. If specified, then after on-chain recovery of
    funds, lnd begin to carry out the data loss recovery protocol in order to
    recover the funds in each channel from a remote force closed transaction.
    */
    ChanBackupSnapshot channel_backups = 3;
}
message UnlockWalletResponse {}

message ChangePasswordRequest {
    /**
    current_password should be the current valid passphrase used to unlock the
    daemon. When using REST, this field must be encoded as base64.
    */
    bytes current_password = 1;

    /**
    new_password should be the new passphrase that will be needed to unlock the
    daemon. When using REST, this field must be encoded as base64.
    */
    bytes new_password = 2;
}
message ChangePasswordResponse {}

service Lightning {
    /** lncli: `walletbalance`
    WalletBalance returns total unspent outputs(confirmed and unconfirmed), all
    confirmed unspent outputs and all unconfirmed unspent outputs under control
    of the wallet.
    */
    rpc WalletBalance (WalletBalanceRequest) returns (WalletBalanceResponse) {
        option (google.api.http) = {
            get: "/v1/balance/blockchain"
        };
    }

    /** lncli: `channelbalance`
    ChannelBalance returns the total funds available across all open channels
    in satoshis.
    */
    rpc ChannelBalance (ChannelBalanceRequest) returns (ChannelBalanceResponse) {
        option (google.api.http) = {
            get: "/v1/balance/channels"
        };
    }

    /** lncli: `listchaintxns`
    GetTransactions returns a list describing all the known transactions
    relevant to the wallet.
    */
    rpc GetTransactions (GetTransactionsRequest) returns (TransactionDetails) {
        option (google.api.http) = {
            get: "/v1/transactions"
        };
    }

    /** lncli: `estimatefee`
    EstimateFee asks the chain backend to estimate the fee rate and total fees
    for a transaction that pays to multiple specified outputs.
    */
    rpc EstimateFee (EstimateFeeRequest) returns (EstimateFeeResponse) {
        option (google.api.http) = {
            get: "/v1/transactions/fee"
        };
    }

    /** lncli: `sendcoins`
    SendCoins executes a request to send coins to a particular address. Unlike
    SendMany, this RPC call only allows creating a single output at a time. If
    neither target_conf, or sat_per_byte are set, then the internal wallet will
    consult its fee model to determine a fee for the default confirmation
    target.
    */
    rpc SendCoins (SendCoinsRequest) returns (SendCoinsResponse) {
        option (google.api.http) = {
            post: "/v1/transactions"
            body: "*"
        };
    }

    /** lncli: `listunspent`
    ListUnspent returns a list of all utxos spendable by the wallet with a
	number of confirmations between the specified minimum and maximum.
    */
    rpc ListUnspent (ListUnspentRequest) returns (ListUnspentResponse) {
        option (google.api.http) = {
            get: "/v1/utxos"
        };
    }

    /**
    SubscribeTransactions creates a uni-directional stream from the server to
    the client in which any newly discovered transactions relevant to the
    wallet are sent over.
    */
    rpc SubscribeTransactions (GetTransactionsRequest) returns (stream Transaction);

    /** lncli: `sendmany`
    SendMany handles a request for a transaction that creates multiple specified
    outputs in parallel. If neither target_conf, or sat_per_byte are set, then
    the internal wallet will consult its fee model to determine a fee for the
    default confirmation target.
    */
    rpc SendMany (SendManyRequest) returns (SendManyResponse);

    /** lncli: `newaddress`
    NewAddress creates a new address under control of the local wallet.
    */
    rpc NewAddress (NewAddressRequest) returns (NewAddressResponse) {
        option (google.api.http) = {
            get: "/v1/newaddress"
        };
    }

    /** lncli: `signmessage`
    SignMessage signs a message with this node's private key. The returned
    signature string is `zbase32` encoded and pubkey recoverable, meaning that
    only the message digest and signature are needed for verification.
    */
    rpc SignMessage (SignMessageRequest) returns (SignMessageResponse) {
        option (google.api.http) = {
            post: "/v1/signmessage"
            body: "*"
        };
    }

    /** lncli: `verifymessage`
    VerifyMessage verifies a signature over a msg. The signature must be
    zbase32 encoded and signed by an active node in the resident node's
    channel database. In addition to returning the validity of the signature,
    VerifyMessage also returns the recovered pubkey from the signature.
    */
    rpc VerifyMessage (VerifyMessageRequest) returns (VerifyMessageResponse) {
        option (google.api.http) = {
            post: "/v1/verifymessage"
            body: "*"
        };
    }

    /** lncli: `connect`
    ConnectPeer attempts to establish a connection to a remote peer. This is at
    the networking level, and is used for communication between nodes. This is
    distinct from establishing a channel with a peer.
    */
    rpc ConnectPeer (ConnectPeerRequest) returns (ConnectPeerResponse) {
        option (google.api.http) = {
            post: "/v1/peers"
            body: "*"
        };
    }

    /** lncli: `disconnect`
    DisconnectPeer attempts to disconnect one peer from another identified by a
    given pubKey. In the case that we currently have a pending or active channel
    with the target peer, then this action will be not be allowed.
    */
    rpc DisconnectPeer (DisconnectPeerRequest) returns (DisconnectPeerResponse) {
        option (google.api.http) = {
            delete: "/v1/peers/{pub_key}"
        };
    }

    /** lncli: `listpeers`
    ListPeers returns a verbose listing of all currently active peers.
    */
    rpc ListPeers (ListPeersRequest) returns (ListPeersResponse) {
        option (google.api.http) = {
            get: "/v1/peers"
        };
    }

    /**
    SubscribePeerEvents creates a uni-directional stream from the server to
    the client in which any events relevant to the state of peers are sent
    over. Events include peers going online and offline.
    */
    rpc SubscribePeerEvents (PeerEventSubscription) returns (stream PeerEvent);

    /** lncli: `getinfo`
    GetInfo returns general information concerning the lightning node including
    it's identity pubkey, alias, the chains it is connected to, and information
    concerning the number of open+pending channels.
    */
    rpc GetInfo (GetInfoRequest) returns (GetInfoResponse) {
        option (google.api.http) = {
            get: "/v1/getinfo"
        };
    }

    // TODO(roasbeef): merge with below with bool?
    /** lncli: `pendingchannels`
    PendingChannels returns a list of all the channels that are currently
    considered "pending". A channel is pending if it has finished the funding
    workflow and is waiting for confirmations for the funding txn, or is in the
    process of closure, either initiated cooperatively or non-cooperatively.
    */
    rpc PendingChannels (PendingChannelsRequest) returns (PendingChannelsResponse) {
        option (google.api.http) = {
           get: "/v1/channels/pending"
        };
    }

    /** lncli: `listchannels`
    ListChannels returns a description of all the open channels that this node
    is a participant in.
    */
    rpc ListChannels (ListChannelsRequest) returns (ListChannelsResponse) {
        option (google.api.http) = {
            get: "/v1/channels"
        };
    }

    /**
    SubscribeChannelEvents creates a uni-directional stream from the server to
    the client in which any updates relevant to the state of the channels are
    sent over. Events include new active channels, inactive channels, and closed
    channels.
    */
    rpc SubscribeChannelEvents (ChannelEventSubscription) returns (stream ChannelEventUpdate);

    /** lncli: `closedchannels`
    ClosedChannels returns a description of all the closed channels that
    this node was a participant in.
    */
    rpc ClosedChannels (ClosedChannelsRequest) returns (ClosedChannelsResponse) {
        option (google.api.http) = {
            get: "/v1/channels/closed"
        };
    }


    /**
    OpenChannelSync is a synchronous version of the OpenChannel RPC call. This
    call is meant to be consumed by clients to the REST proxy. As with all
    other sync calls, all byte slices are intended to be populated as hex
    encoded strings.
    */
    rpc OpenChannelSync (OpenChannelRequest) returns (ChannelPoint) {
        option (google.api.http) = {
            post: "/v1/channels"
            body: "*"
        };
    }

    /** lncli: `openchannel`
    OpenChannel attempts to open a singly funded channel specified in the
    request to a remote peer. Users are able to specify a target number of
    blocks that the funding transaction should be confirmed in, or a manual fee
    rate to us for the funding transaction. If neither are specified, then a
    lax block confirmation target is used. Each OpenStatusUpdate will return
    the pending channel ID of the in-progress channel. Depending on the
    arguments specified in the OpenChannelRequest, this pending channel ID can
    then be used to manually progress the channel funding flow.
    */
    rpc OpenChannel (OpenChannelRequest) returns (stream OpenStatusUpdate);

    /**
    FundingStateStep is an advanced funding related call that allows the caller
    to either execute some preparatory steps for a funding workflow, or
    manually progress a funding workflow. The primary way a funding flow is
    identified is via its pending channel ID. As an example, this method can be
    used to specify that we're expecting a funding flow for a particular
    pending channel ID, for which we need to use specific parameters.
    Alternatively, this can be used to interactively drive PSBT signing for
    funding for partially complete funding transactions.
    */
    rpc FundingStateStep(FundingTransitionMsg) returns (FundingStateStepResp);

    /**
    ChannelAcceptor dispatches a bi-directional streaming RPC in which
    OpenChannel requests are sent to the client and the client responds with
    a boolean that tells LND whether or not to accept the channel. This allows
    node operators to specify their own criteria for accepting inbound channels
    through a single persistent connection.
    */
    rpc ChannelAcceptor (stream ChannelAcceptResponse) returns (stream ChannelAcceptRequest);

    /** lncli: `closechannel`
    CloseChannel attempts to close an active channel identified by its channel
    outpoint (ChannelPoint). The actions of this method can additionally be
    augmented to attempt a force close after a timeout period in the case of an
    inactive peer. If a non-force close (cooperative closure) is requested,
    then the user can specify either a target number of blocks until the
    closure transaction is confirmed, or a manual fee rate. If neither are
    specified, then a default lax, block confirmation target is used.
    */
    rpc CloseChannel (CloseChannelRequest) returns (stream CloseStatusUpdate) {
        option (google.api.http) = {
            delete: "/v1/channels/{channel_point.funding_txid_str}/{channel_point.output_index}"
        };
    }

    /** lncli: `abandonchannel`
    AbandonChannel removes all channel state from the database except for a
    close summary. This method can be used to get rid of permanently unusable
    channels due to bugs fixed in newer versions of lnd. Only available
    when in debug builds of lnd.
    */
    rpc AbandonChannel (AbandonChannelRequest) returns (AbandonChannelResponse) {
        option (google.api.http) = {
            delete: "/v1/channels/abandon/{channel_point.funding_txid_str}/{channel_point.output_index}"
        };
    }


    /** lncli: `sendpayment`
    SendPayment dispatches a bi-directional streaming RPC for sending payments
    through the Lightning Network. A single RPC invocation creates a persistent
    bi-directional stream allowing clients to rapidly send payments through the
    Lightning Network with a single persistent connection.
    */
    rpc SendPayment (stream SendRequest) returns (stream SendResponse);

    /**
    SendPaymentSync is the synchronous non-streaming version of SendPayment.
    This RPC is intended to be consumed by clients of the REST proxy.
    Additionally, this RPC expects the destination's public key and the payment
    hash (if any) to be encoded as hex strings.
    */
    rpc SendPaymentSync (SendRequest) returns (SendResponse) {
        option (google.api.http) = {
            post: "/v1/channels/transactions"
            body: "*"
        };
    }

    /** lncli: `sendtoroute`
    SendToRoute is a bi-directional streaming RPC for sending payment through
    the Lightning Network. This method differs from SendPayment in that it
    allows users to specify a full route manually. This can be used for things
    like rebalancing, and atomic swaps.
    */
    rpc SendToRoute(stream SendToRouteRequest) returns (stream SendResponse);

    /**
    SendToRouteSync is a synchronous version of SendToRoute. It Will block
    until the payment either fails or succeeds.
    */
    rpc SendToRouteSync (SendToRouteRequest) returns (SendResponse) {
        option (google.api.http) = {
            post: "/v1/channels/transactions/route"
            body: "*"
        };
    }

    /** lncli: `addinvoice`
    AddInvoice attempts to add a new invoice to the invoice database. Any
    duplicated invoices are rejected, therefore all invoices *must* have a
    unique payment preimage.
    */
    rpc AddInvoice (Invoice) returns (AddInvoiceResponse) {
        option (google.api.http) = {
            post: "/v1/invoices"
            body: "*"
        };
    }

    /** lncli: `listinvoices`
    ListInvoices returns a list of all the invoices currently stored within the
    database. Any active debug invoices are ignored. It has full support for
    paginated responses, allowing users to query for specific invoices through
    their add_index. This can be done by using either the first_index_offset or
    last_index_offset fields included in the response as the index_offset of the
    next request. By default, the first 100 invoices created will be returned.
    Backwards pagination is also supported through the Reversed flag.
    */
    rpc ListInvoices (ListInvoiceRequest) returns (ListInvoiceResponse) {
        option (google.api.http) = {
            get: "/v1/invoices"
        };
    }

    /** lncli: `lookupinvoice`
    LookupInvoice attempts to look up an invoice according to its payment hash.
    The passed payment hash *must* be exactly 32 bytes, if not, an error is
    returned.
    */
    rpc LookupInvoice (PaymentHash) returns (Invoice) {
        option (google.api.http) = {
            get: "/v1/invoice/{r_hash_str}"
        };
    }

    /**
    SubscribeInvoices returns a uni-directional stream (server -> client) for
    notifying the client of newly added/settled invoices. The caller can
    optionally specify the add_index and/or the settle_index. If the add_index
    is specified, then we'll first start by sending add invoice events for all
    invoices with an add_index greater than the specified value. If the
    settle_index is specified, the next, we'll send out all settle events for
    invoices with a settle_index greater than the specified value. One or both
    of these fields can be set. If no fields are set, then we'll only send out
    the latest add/settle events.
    */
    rpc SubscribeInvoices (InvoiceSubscription) returns (stream Invoice) {
        option (google.api.http) = {
            get: "/v1/invoices/subscribe"
        };
    }

    /** lncli: `decodepayreq`
    DecodePayReq takes an encoded payment request string and attempts to decode
    it, returning a full description of the conditions encoded within the
    payment request.
    */
    rpc DecodePayReq (PayReqString) returns (PayReq) {
        option (google.api.http) = {
            get: "/v1/payreq/{pay_req}"
        };
    }

    /** lncli: `listpayments`
    ListPayments returns a list of all outgoing payments.
    */
    rpc ListPayments (ListPaymentsRequest) returns (ListPaymentsResponse) {
        option (google.api.http) = {
            get: "/v1/payments"
        };
    };

    /**
    DeleteAllPayments deletes all outgoing payments from DB.
    */
    rpc DeleteAllPayments (DeleteAllPaymentsRequest) returns (DeleteAllPaymentsResponse) {
        option (google.api.http) = {
            delete: "/v1/payments"
        };
    };

    /** lncli: `describegraph`
    DescribeGraph returns a description of the latest graph state from the
    point of view of the node. The graph information is partitioned into two
    components: all the nodes/vertexes, and all the edges that connect the
    vertexes themselves. As this is a directed graph, the edges also contain
    the node directional specific routing policy which includes: the time lock
    delta, fee information, etc.
    */
    rpc DescribeGraph (ChannelGraphRequest) returns (ChannelGraph) {
        option (google.api.http) = {
            get: "/v1/graph"
        };
    }

    /** lncli: `getchaninfo`
    GetChanInfo returns the latest authenticated network announcement for the
    given channel identified by its channel ID: an 8-byte integer which
    uniquely identifies the location of transaction's funding output within the
    blockchain.
    */
    rpc GetChanInfo (ChanInfoRequest) returns (ChannelEdge) {
        option (google.api.http) = {
            get: "/v1/graph/edge/{chan_id}"
        };
    }

    /** lncli: `getnodeinfo`
    GetNodeInfo returns the latest advertised, aggregated, and authenticated
    channel information for the specified node identified by its public key.
    */
    rpc GetNodeInfo (NodeInfoRequest) returns (NodeInfo) {
        option (google.api.http) = {
            get: "/v1/graph/node/{pub_key}"
        };
    }

    /** lncli: `queryroutes`
    QueryRoutes attempts to query the daemon's Channel Router for a possible
    route to a target destination capable of carrying a specific amount of
    satoshis. The returned route contains the full details required to craft and
    send an HTLC, also including the necessary information that should be
    present within the Sphinx packet encapsulated within the HTLC.
    */
    rpc QueryRoutes(QueryRoutesRequest) returns (QueryRoutesResponse) {
        option (google.api.http) = {
            get: "/v1/graph/routes/{pub_key}/{amt}"
        };
    }

    /** lncli: `getnetworkinfo`
    GetNetworkInfo returns some basic stats about the known channel graph from
    the point of view of the node.
    */
    rpc GetNetworkInfo (NetworkInfoRequest) returns (NetworkInfo) {
        option (google.api.http) = {
            get: "/v1/graph/info"
        };
    }

    /** lncli: `stop`
    StopDaemon will send a shutdown request to the interrupt handler, triggering
    a graceful shutdown of the daemon.
    */
    rpc StopDaemon(StopRequest) returns (StopResponse);

    /**
    SubscribeChannelGraph launches a streaming RPC that allows the caller to
    receive notifications upon any changes to the channel graph topology from
    the point of view of the responding node. Events notified include: new
    nodes coming online, nodes updating their authenticated attributes, new
    channels being advertised, updates in the routing policy for a directional
    channel edge, and when channels are closed on-chain.
    */
    rpc SubscribeChannelGraph(GraphTopologySubscription) returns (stream GraphTopologyUpdate);

    /** lncli: `debuglevel`
    DebugLevel allows a caller to programmatically set the logging verbosity of
    lnd. The logging can be targeted according to a coarse daemon-wide logging
    level, or in a granular fashion to specify the logging for a target
    sub-system.
    */
    rpc DebugLevel (DebugLevelRequest) returns (DebugLevelResponse);

    /** lncli: `feereport`
    FeeReport allows the caller to obtain a report detailing the current fee
    schedule enforced by the node globally for each channel.
    */
    rpc FeeReport(FeeReportRequest) returns (FeeReportResponse) {
        option (google.api.http) = {
            get: "/v1/fees"
        };
    }

    /** lncli: `updatechanpolicy`
    UpdateChannelPolicy allows the caller to update the fee schedule and
    channel policies for all channels globally, or a particular channel.
    */
    rpc UpdateChannelPolicy(PolicyUpdateRequest) returns (PolicyUpdateResponse) {
        option (google.api.http) = {
            post: "/v1/chanpolicy"
            body: "*"
        };
    }

    /** lncli: `fwdinghistory`
    ForwardingHistory allows the caller to query the htlcswitch for a record of
    all HTLCs forwarded within the target time range, and integer offset
    within that time range. If no time-range is specified, then the first chunk
    of the past 24 hrs of forwarding history are returned.

    A list of forwarding events are returned. The size of each forwarding event
    is 40 bytes, and the max message size able to be returned in gRPC is 4 MiB.
    As a result each message can only contain 50k entries. Each response has
    the index offset of the last entry. The index offset can be provided to the
    request to allow the caller to skip a series of records.
    */
    rpc ForwardingHistory(ForwardingHistoryRequest) returns (ForwardingHistoryResponse) {
        option (google.api.http) = {
            post: "/v1/switch"
            body: "*"
        };
    };

    /** lncli: `exportchanbackup`
    ExportChannelBackup attempts to return an encrypted static channel backup
    for the target channel identified by it channel point. The backup is
    encrypted with a key generated from the aezeed seed of the user. The
    returned backup can either be restored using the RestoreChannelBackup
    method once lnd is running, or via the InitWallet and UnlockWallet methods
    from the WalletUnlocker service.
    */
    rpc ExportChannelBackup(ExportChannelBackupRequest) returns (ChannelBackup) {
        option (google.api.http) = {
            get: "/v1/channels/backup/{chan_point.funding_txid_str}/{chan_point.output_index}"
        };
    };

    /**
    ExportAllChannelBackups returns static channel backups for all existing
    channels known to lnd. A set of regular singular static channel backups for
    each channel are returned. Additionally, a multi-channel backup is returned
    as well, which contains a single encrypted blob containing the backups of
    each channel.
    */
    rpc ExportAllChannelBackups(ChanBackupExportRequest) returns (ChanBackupSnapshot) {
        option (google.api.http) = {
            get: "/v1/channels/backup"
        };
    };

    /**
    VerifyChanBackup allows a caller to verify the integrity of a channel backup
    snapshot. This method will accept either a packed Single or a packed Multi.
    Specifying both will result in an error.
    */
    rpc VerifyChanBackup(ChanBackupSnapshot) returns (VerifyChanBackupResponse) {
        option (google.api.http) = {
            post: "/v1/channels/backup/verify"
            body: "*"
        };
    };

    /** lncli: `restorechanbackup`
    RestoreChannelBackups accepts a set of singular channel backups, or a
    single encrypted multi-chan backup and attempts to recover any funds
    remaining within the channel. If we are able to unpack the backup, then the
    new channel will be shown under listchannels, as well as pending channels.
    */
    rpc RestoreChannelBackups(RestoreChanBackupRequest) returns (RestoreBackupResponse)  {
        option (google.api.http) = {
            post: "/v1/channels/backup/restore"
            body: "*"
        };
    };

    /**
    SubscribeChannelBackups allows a client to sub-subscribe to the most up to
    date information concerning the state of all channel backups. Each time a
    new channel is added, we return the new set of channels, along with a
    multi-chan backup containing the backup info for all channels. Each time a
    channel is closed, we send a new update, which contains new new chan back
    ups, but the updated set of encrypted multi-chan backups with the closed
    channel(s) removed.
    */
    rpc SubscribeChannelBackups(ChannelBackupSubscription) returns (stream ChanBackupSnapshot) {
    };

    /** lncli: `bakemacaroon`
    BakeMacaroon allows the creation of a new macaroon with custom read and
    write permissions. No first-party caveats are added since this can be done
    offline.
    */
    rpc BakeMacaroon(BakeMacaroonRequest) returns (BakeMacaroonResponse) {
        option (google.api.http) = {
            post: "/v1/macaroon"
            body: "*"
        };
    };
}

message Utxo {
    /// The type of address
    AddressType type = 1 [json_name = "address_type"];

    /// The address
    string address = 2 [json_name = "address"];

    /// The value of the unspent coin in satoshis
    int64 amount_sat = 3 [json_name = "amount_sat"];

    /// The pkscript in hex
    string pk_script = 4 [json_name = "pk_script"];

    /// The outpoint in format txid:n
    OutPoint outpoint = 5 [json_name = "outpoint"];

    /// The number of confirmations for the Utxo
    int64 confirmations = 6 [json_name = "confirmations"];
}

message Transaction {
    /// The transaction hash
    string tx_hash = 1 [ json_name = "tx_hash" ];

    /// The transaction amount, denominated in satoshis
    int64 amount = 2 [ json_name = "amount" ];

    /// The number of confirmations
    int32 num_confirmations = 3 [ json_name = "num_confirmations" ];

    /// The hash of the block this transaction was included in
    string block_hash = 4 [ json_name = "block_hash" ];

    /// The height of the block this transaction was included in
    int32 block_height = 5 [ json_name = "block_height" ];

    /// Timestamp of this transaction 
    int64 time_stamp = 6 [ json_name = "time_stamp" ];

    /// Fees paid for this transaction
    int64 total_fees = 7 [ json_name = "total_fees" ];

    /// Addresses that received funds for this transaction
    repeated string dest_addresses = 8 [ json_name = "dest_addresses" ];

    /// The raw transaction hex.
    string raw_tx_hex = 9 [ json_name = "raw_tx_hex" ];
}
message GetTransactionsRequest {
}
message TransactionDetails {
    /// The list of transactions relevant to the wallet.
    repeated Transaction transactions = 1 [json_name = "transactions"];
}

message FeeLimit {
    oneof limit {
        /**
        The fee limit expressed as a fixed amount of satoshis.

        The fields fixed and fixed_msat are mutually exclusive.
        */
        int64 fixed = 1;

        /**
        The fee limit expressed as a fixed amount of millisatoshis.

        The fields fixed and fixed_msat are mutually exclusive.
        */
        int64 fixed_msat = 3;

        /// The fee limit expressed as a percentage of the payment amount.
        int64 percent = 2;
    }
}

message SendRequest {
    /**
    The identity pubkey of the payment recipient. When using REST, this field
    must be encoded as base64.
    */
    bytes dest = 1;

    /**
    The hex-encoded identity pubkey of the payment recipient. Deprecated now
    that the REST gateway supports base64 encoding of bytes fields.
    */
    string dest_string = 2 [deprecated = true];

    /**
    The amount to send expressed in satoshis.

    The fields amt and amt_msat are mutually exclusive.
    */
    int64 amt = 3;

    /**
    The amount to send expressed in millisatoshis.

    The fields amt and amt_msat are mutually exclusive.
    */
    int64 amt_msat = 12;

    /**
    The hash to use within the payment's HTLC. When using REST, this field
    must be encoded as base64.
    */
    bytes payment_hash = 4;

    /**
    The hex-encoded hash to use within the payment's HTLC. Deprecated now
    that the REST gateway supports base64 encoding of bytes fields.
    */
    string payment_hash_string = 5 [deprecated = true];

    /**
    A bare-bones invoice for a payment within the Lightning Network. With the
    details of the invoice, the sender has all the data necessary to send a
    payment to the recipient.
    */
    string payment_request = 6;

    /**
    The CLTV delta from the current height that should be used to set the
    timelock for the final hop.
    */
    int32 final_cltv_delta = 7;

    /**
    The maximum number of satoshis that will be paid as a fee of the payment.
    This value can be represented either as a percentage of the amount being
    sent, or as a fixed amount of the maximum fee the user is willing the pay to
    send the payment.
    */
    FeeLimit fee_limit = 8;

    /**
    The channel id of the channel that must be taken to the first hop. If zero,
    any channel may be used.
    */
    uint64 outgoing_chan_id = 9 [jstype = JS_STRING];

    /**
    The pubkey of the last hop of the route. If empty, any hop may be used.
    */
    bytes last_hop_pubkey = 13;

    /** 
    An optional maximum total time lock for the route. This should not exceed
    lnd's `--max-cltv-expiry` setting. If zero, then the value of
    `--max-cltv-expiry` is enforced.
    */
    uint32 cltv_limit = 10;

    /** 
    An optional field that can be used to pass an arbitrary set of TLV records
    to a peer which understands the new records. This can be used to pass
    application specific data during the payment attempt. Record types are
    required to be in the custom range >= 65536. When using REST, the values
    must be encoded as base64.
    */
    map<uint64, bytes> dest_custom_records = 11;

    /// If set, circular payments to self are permitted.
    bool allow_self_payment = 14;

    /**
    Features assumed to be supported by the final node. All transitive feature
    dependencies must also be set properly. For a given feature bit pair, either
    optional or remote may be set, but not both. If this field is nil or empty,
    the router will try to load destination features from the graph as a
    fallback.
    */
    repeated FeatureBit dest_features = 15;
}

message SendResponse {
    string payment_error = 1 [json_name = "payment_error"];
    bytes payment_preimage = 2 [json_name = "payment_preimage"];
    Route payment_route = 3 [json_name = "payment_route"];
    bytes payment_hash = 4 [json_name = "payment_hash"];
}

message SendToRouteRequest {
    /**
    The payment hash to use for the HTLC. When using REST, this field must be
    encoded as base64.
    */
    bytes payment_hash = 1;

    /**
    An optional hex-encoded payment hash to be used for the HTLC. Deprecated now
    that the REST gateway supports base64 encoding of bytes fields.
    */
    string payment_hash_string = 2 [deprecated = true];

    reserved 3;

    /// Route that should be used to attempt to complete the payment.
    Route route = 4;
}

message ChannelAcceptRequest {
    /// The pubkey of the node that wishes to open an inbound channel.
    bytes node_pubkey = 1;

    /// The hash of the genesis block that the proposed channel resides in.
    bytes chain_hash = 2;

    /// The pending channel id.
    bytes pending_chan_id = 3;

    /// The funding amount in satoshis that initiator wishes to use in the channel.
    uint64 funding_amt = 4;

    /// The push amount of the proposed channel in millisatoshis.
    uint64 push_amt = 5;

    /// The dust limit of the initiator's commitment tx.
    uint64 dust_limit = 6;

    /// The maximum amount of coins in millisatoshis that can be pending in this channel.
    uint64 max_value_in_flight = 7;

    /// The minimum amount of satoshis the initiator requires us to have at all times.
    uint64 channel_reserve = 8;

    /// The smallest HTLC in millisatoshis that the initiator will accept.
    uint64 min_htlc = 9;

    /// The initial fee rate that the initiator suggests for both commitment transactions.
    uint64 fee_per_kw = 10;

    /**
    The number of blocks to use for the relative time lock in the pay-to-self output
    of both commitment transactions.
    */
    uint32 csv_delay = 11;

    /// The total number of incoming HTLC's that the initiator will accept.
    uint32 max_accepted_htlcs = 12;

    /// A bit-field which the initiator uses to specify proposed channel behavior.
    uint32 channel_flags = 13;
}

message ChannelAcceptResponse {
    /// Whether or not the client accepts the channel.
    bool accept = 1;

    /// The pending channel id to which this response applies.
    bytes pending_chan_id = 2;
}

message ChannelPoint {
    oneof funding_txid {
        /**
        Txid of the funding transaction. When using REST, this field must be
        encoded as base64.
        */
        bytes funding_txid_bytes = 1 [json_name = "funding_txid_bytes"];

        /**
        Hex-encoded string representing the byte-reversed hash of the funding
        transaction.
        */
        string funding_txid_str = 2 [json_name = "funding_txid_str"];
    }

    /// The index of the output of the funding transaction
    uint32 output_index = 3 [json_name = "output_index"];
}

message OutPoint {
    /// Raw bytes representing the transaction id.
    bytes txid_bytes = 1 [json_name = "txid_bytes"];

    /// Reversed, hex-encoded string representing the transaction id.
    string txid_str = 2 [json_name = "txid_str"];

    /// The index of the output on the transaction.
    uint32 output_index = 3 [json_name = "output_index"];
}

message LightningAddress {
    /// The identity pubkey of the Lightning node
    string pubkey = 1 [json_name = "pubkey"];

    /// The network location of the lightning node, e.g. `69.69.69.69:1337` or `localhost:10011`
    string host = 2 [json_name = "host"];
}

message EstimateFeeRequest {
    /// The map from addresses to amounts for the transaction.
    map<string, int64> AddrToAmount = 1;

    /// The target number of blocks that this transaction should be confirmed by.
    int32 target_conf = 2;
}

message EstimateFeeResponse {
    /// The total fee in satoshis.
    int64 fee_sat = 1 [json_name = "fee_sat"];

    /// The fee rate in satoshi/byte.
    int64 feerate_sat_per_byte = 2 [json_name = "feerate_sat_per_byte"];
}

message SendManyRequest {
    /// The map from addresses to amounts
    map<string, int64> AddrToAmount = 1;

    /// The target number of blocks that this transaction should be confirmed by.
    int32 target_conf = 3;

    /// A manual fee rate set in sat/byte that should be used when crafting the transaction.
    int64 sat_per_byte = 5;
}
message SendManyResponse {
    /// The id of the transaction
    string txid = 1 [json_name = "txid"];
}

message SendCoinsRequest {
    /// The address to send coins to 
    string addr = 1;

    /// The amount in satoshis to send
    int64 amount = 2;

    /// The target number of blocks that this transaction should be confirmed by.
    int32 target_conf = 3;

    /// A manual fee rate set in sat/byte that should be used when crafting the transaction.
    int64 sat_per_byte = 5;

    /**
    If set, then the amount field will be ignored, and lnd will attempt to
    send all the coins under control of the internal wallet to the specified
    address.
    */
    bool send_all = 6; 
}
message SendCoinsResponse {
    /// The transaction ID of the transaction
    string txid = 1 [json_name = "txid"];
}

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;
}
message ListUnspentResponse {
    /// A list of utxos
    repeated Utxo utxos = 1 [json_name = "utxos"];
}

/** 
`AddressType` has to be one of:

- `p2wkh`: Pay to witness key hash (`WITNESS_PUBKEY_HASH` = 0)
- `np2wkh`: Pay to nested witness key hash (`NESTED_PUBKEY_HASH` = 1)
*/
enum AddressType {
        WITNESS_PUBKEY_HASH = 0;
        NESTED_PUBKEY_HASH = 1;
        UNUSED_WITNESS_PUBKEY_HASH = 2;
        UNUSED_NESTED_PUBKEY_HASH = 3;
}

message NewAddressRequest {
    /// The address type
    AddressType type = 1;
}
message NewAddressResponse {
    /// The newly generated wallet address
    string address = 1 [json_name = "address"];
}

message SignMessageRequest {
    /**
    The message to be signed. When using REST, this field must be encoded as
    base64.
    */
    bytes msg = 1 [ json_name = "msg" ];
}
message SignMessageResponse {
    /// The signature for the given message
    string signature = 1 [ json_name = "signature" ];
}

message VerifyMessageRequest {
    /**
    The message over which the signature is to be verified. When using REST,
    this field must be encoded as base64.
    */
    bytes msg = 1 [ json_name = "msg" ];

    /// The signature to be verified over the given message
    string signature = 2 [ json_name = "signature" ];
}
message VerifyMessageResponse {
    /// Whether the signature was valid over the given message
    bool valid = 1 [ json_name = "valid" ];

    /// The pubkey recovered from the signature
    string pubkey = 2 [ json_name = "pubkey" ];
}

message ConnectPeerRequest {
    /// Lightning address of the peer, in the format `<pubkey>@host`
    LightningAddress addr = 1;

    /** If set, the daemon will attempt to persistently connect to the target
     * peer. Otherwise, the call will be synchronous. */
    bool perm = 2;
}
message ConnectPeerResponse {
}

message DisconnectPeerRequest {
    /// The pubkey of the node to disconnect from
    string pub_key = 1 [json_name = "pub_key"];
}
message DisconnectPeerResponse {
}

message HTLC {
    bool incoming = 1 [json_name = "incoming"];
    int64 amount = 2 [json_name = "amount"];
    bytes hash_lock = 3 [json_name = "hash_lock"];
    uint32 expiration_height = 4 [json_name = "expiration_height"];
}

message Channel {
    /// Whether this channel is active or not
    bool active = 1 [json_name = "active"];

    /// The identity pubkey of the remote node
    string remote_pubkey = 2 [json_name = "remote_pubkey"];

    /**
    The outpoint (txid:index) of the funding transaction. With this value, Bob
    will be able to generate a signature for Alice's version of the commitment
    transaction.
    */
    string channel_point = 3 [json_name = "channel_point"];

    /**
    The unique channel ID for the channel. The first 3 bytes are the block
    height, the next 3 the index within the block, and the last 2 bytes are the
    output index for the channel.
    */
    uint64 chan_id = 4 [json_name = "chan_id", jstype = JS_STRING];

    /// The total amount of funds held in this channel
    int64 capacity = 5 [json_name = "capacity"];

    /// This node's current balance in this channel
    int64 local_balance = 6 [json_name = "local_balance"];

    /// The counterparty's current balance in this channel
    int64 remote_balance = 7 [json_name = "remote_balance"];

    /**
    The amount calculated to be paid in fees for the current set of commitment
    transactions. The fee amount is persisted with the channel in order to
    allow the fee amount to be removed and recalculated with each channel state
    update, including updates that happen after a system restart.
    */
    int64 commit_fee = 8 [json_name = "commit_fee"];

    /// The weight of the commitment transaction
    int64 commit_weight = 9 [json_name = "commit_weight"];

    /**
    The required number of satoshis per kilo-weight that the requester will pay
    at all times, for both the funding transaction and commitment transaction.
    This value can later be updated once the channel is open.
    */
    int64 fee_per_kw = 10 [json_name = "fee_per_kw"];

    /// The unsettled balance in this channel
    int64 unsettled_balance = 11 [json_name = "unsettled_balance"];

    /**
    The total number of satoshis we've sent within this channel.
    */
    int64 total_satoshis_sent = 12 [json_name = "total_satoshis_sent"];

    /**
    The total number of satoshis we've received within this channel.
    */
    int64 total_satoshis_received = 13 [json_name = "total_satoshis_received"];

    /**
    The total number of updates conducted within this channel.
    */
    uint64 num_updates = 14 [json_name = "num_updates"];

    /**
    The list of active, uncleared HTLCs currently pending within the channel.
    */
    repeated HTLC pending_htlcs = 15 [json_name = "pending_htlcs"];

    /**
    The CSV delay expressed in relative blocks. If the channel is force closed,
    we will need to wait for this many blocks before we can regain our funds.
    */
    uint32 csv_delay = 16 [json_name = "csv_delay"];

    /// Whether this channel is advertised to the network or not.
    bool private = 17 [json_name = "private"];

    /// True if we were the ones that created the channel.
    bool initiator = 18 [json_name = "initiator"];

    /// A set of flags showing the current state of the channel.
    string chan_status_flags = 19 [json_name = "chan_status_flags"];

    /// The minimum satoshis this node is required to reserve in its balance.
    int64 local_chan_reserve_sat = 20 [json_name = "local_chan_reserve_sat"];

    /**
    The minimum satoshis the other node is required to reserve in its balance.
    */
    int64 remote_chan_reserve_sat = 21 [json_name = "remote_chan_reserve_sat"];

    /**
    If true, then this channel uses the modern commitment format where the key
    in the output of the remote party does not change each state. This makes
    back up and recovery easier as when the channel is closed, the funds go
    directly to that key. 
    */
    bool static_remote_key = 22 [json_name = "static_remote_key"];

    /**
    The number of seconds that the channel has been monitored by the channel
    scoring system. Scores are currently not persisted, so this value may be
    less than the lifetime of the channel [EXPERIMENTAL].
    */
    int64 lifetime = 23 [json_name = "lifetime"];

    /**
    The number of seconds that the remote peer has been observed as being online
    by the channel scoring system over the lifetime of the channel [EXPERIMENTAL].
    */
    int64 uptime = 24 [json_name = "uptime"];

    /**
    Close address is the address that we will enforce payout to on cooperative
    close if the channel was opened utilizing option upfront shutdown. This
    value can be set on channel open by setting close_address in an open channel
    request. If this value is not set, you can still choose a payout address by
    cooperatively closing with the delivery_address field set.
    */
    string close_address = 25 [json_name ="close_address"];
}


message ListChannelsRequest {
    bool active_only = 1;
    bool inactive_only = 2;
    bool public_only = 3;
    bool private_only = 4;
}
message ListChannelsResponse {
    /// The list of active channels
    repeated Channel channels = 11 [json_name = "channels"];
}

message ChannelCloseSummary {
    /// The outpoint (txid:index) of the funding transaction. 
    string channel_point = 1 [json_name = "channel_point"];

    ///  The unique channel ID for the channel. 
    uint64 chan_id = 2 [json_name = "chan_id", jstype = JS_STRING];

    /// The hash of the genesis block that this channel resides within.
    string chain_hash = 3 [json_name = "chain_hash"];

    /// The txid of the transaction which ultimately closed this channel.
    string closing_tx_hash = 4 [json_name = "closing_tx_hash"];

    /// Public key of the remote peer that we formerly had a channel with.
    string remote_pubkey = 5 [json_name = "remote_pubkey"];

    /// Total capacity of the channel.
    int64 capacity = 6 [json_name = "capacity"];

    /// Height at which the funding transaction was spent.
    uint32 close_height = 7 [json_name = "close_height"];

    /// Settled balance at the time of channel closure
    int64 settled_balance = 8 [json_name = "settled_balance"];

    /// The sum of all the time-locked outputs at the time of channel closure
    int64 time_locked_balance = 9 [json_name = "time_locked_balance"];

    enum ClosureType {
        COOPERATIVE_CLOSE = 0;
        LOCAL_FORCE_CLOSE = 1;
        REMOTE_FORCE_CLOSE = 2;
        BREACH_CLOSE = 3;
        FUNDING_CANCELED = 4;
        ABANDONED = 5;
    }

    /// Details on how the channel was closed.
    ClosureType close_type = 10 [json_name = "close_type"];

    enum Initiator {
        UNKNOWN = 0;
        LOCAL = 1;
        REMOTE = 2;
        BOTH = 3;
    }

    /**
    Open initiator is the party that initiated opening the channel. Note that
    this value may be unknown if the channel was closed before we migrated to
    store open channel information after close.
    */
    Initiator open_initiator = 11 [json_name = "open_initiator"];

    /**
    Close initiator indicates which party initiated the close. This value will
    be unknown for channels that were cooperatively closed before we started
    tracking cooperative close initiators. Note that this indicates which party
    initiated a close, and it is possible for both to initiate cooperative or
    force closes, although only one party's close will be confirmed on chain.
    */
    Initiator close_initiator = 12 [json_name = "close_initiator"];
}

message ClosedChannelsRequest {
    bool cooperative = 1;
    bool local_force = 2;
    bool remote_force = 3;
    bool breach = 4;
    bool funding_canceled = 5;
    bool abandoned = 6;
}

message ClosedChannelsResponse { 
    repeated ChannelCloseSummary channels = 1 [json_name = "channels"];
}

message Peer {
    /// The identity pubkey of the peer
    string pub_key = 1 [json_name = "pub_key"];

    /// Network address of the peer; eg `127.0.0.1:10011`
    string address = 3 [json_name = "address"];

    /// Bytes of data transmitted to this peer
    uint64 bytes_sent = 4 [json_name = "bytes_sent"];

    /// Bytes of data transmitted from this peer
    uint64 bytes_recv = 5 [json_name = "bytes_recv"];

    /// Satoshis sent to this peer
    int64 sat_sent = 6 [json_name = "sat_sent"];

    /// Satoshis received from this peer
    int64 sat_recv = 7 [json_name = "sat_recv"];

    /// A channel is inbound if the counterparty initiated the channel
    bool inbound = 8 [json_name = "inbound"];

    /// Ping time to this peer
    int64 ping_time = 9 [json_name = "ping_time"];

    enum SyncType {
        /**
        Denotes that we cannot determine the peer's current sync type.
        */
        UNKNOWN_SYNC = 0;

        /**
        Denotes that we are actively receiving new graph updates from the peer.
        */
        ACTIVE_SYNC = 1;

        /**
        Denotes that we are not receiving new graph updates from the peer.
        */
        PASSIVE_SYNC = 2;
    }

    // The type of sync we are currently performing with this peer.
    SyncType sync_type = 10 [json_name = "sync_type"];

    /// Features advertised by the remote peer in their init message.
    map<uint32, Feature> features = 11 [json_name = "features"];
}

message ListPeersRequest {
}
message ListPeersResponse {
    /// The list of currently connected peers
    repeated Peer peers = 1 [json_name = "peers"];
}

message PeerEventSubscription {
}

message PeerEvent {
    /// The identity pubkey of the peer.
    string pub_key = 1 [json_name = "pub_key"];

    enum EventType {
        PEER_ONLINE = 0;
        PEER_OFFLINE = 1;
    }

    EventType type = 2 [ json_name = "type" ];
}

message GetInfoRequest {
}
message GetInfoResponse {

    /// The version of the LND software that the node is running.
    string version = 14 [ json_name = "version" ];

    /// The identity pubkey of the current node.
    string identity_pubkey = 1 [json_name = "identity_pubkey"];

    /// If applicable, the alias of the current node, e.g. "bob"
    string alias = 2 [json_name = "alias"];

    /// The color of the current node in hex code format
    string color = 17 [json_name = "color"];

    /// Number of pending channels
    uint32 num_pending_channels = 3 [json_name = "num_pending_channels"];

    /// Number of active channels
    uint32 num_active_channels = 4 [json_name = "num_active_channels"];

    /// Number of inactive channels
    uint32 num_inactive_channels = 15 [json_name = "num_inactive_channels"];

    /// Number of peers
    uint32 num_peers = 5 [json_name = "num_peers"];

    /// The node's current view of the height of the best block
    uint32 block_height = 6 [json_name = "block_height"];

    /// The node's current view of the hash of the best block
    string block_hash = 8 [json_name = "block_hash"];

    /// Timestamp of the block best known to the wallet
    int64 best_header_timestamp = 13 [ json_name = "best_header_timestamp" ];

    /// Whether the wallet's view is synced to the main chain
    bool synced_to_chain = 9 [json_name = "synced_to_chain"];

    // Whether we consider ourselves synced with the public channel graph.
    bool synced_to_graph = 18 [json_name = "synced_to_graph"];

    /** 
    Whether the current node is connected to testnet. This field is 
    deprecated and the network field should be used instead 
    **/
    bool testnet = 10 [json_name = "testnet", deprecated = true];

    reserved 11;

    /// A list of active chains the node is connected to
    repeated Chain chains = 16 [json_name = "chains"];

    /// The URIs of the current node.
    repeated string uris = 12 [json_name = "uris"];

    /*
    Features that our node has advertised in our init message, node
    announcements and invoices.
    */
    map<uint32, Feature> features = 19 [json_name = "features"];
}

message Chain {
    /// The blockchain the node is on (eg bitcoin, litecoin)
    string chain = 1 [json_name = "chain"];

    /// The network the node is on (eg regtest, testnet, mainnet)
    string network = 2 [json_name = "network"];
}

message ConfirmationUpdate {
    bytes block_sha = 1;
    int32 block_height = 2;

    uint32 num_confs_left = 3;
}

message ChannelOpenUpdate {
    ChannelPoint channel_point = 1 [json_name = "channel_point"];
}

message ChannelCloseUpdate {
    bytes closing_txid = 1 [json_name = "closing_txid"];

    bool success = 2 [json_name = "success"];
}

message CloseChannelRequest {
    /**
    The outpoint (txid:index) of the funding transaction. With this value, Bob
    will be able to generate a signature for Alice's version of the commitment
    transaction.
    */
    ChannelPoint channel_point = 1;

    /// If true, then the channel will be closed forcibly. This means the current commitment transaction will be signed and broadcast.
    bool force = 2;

    /// The target number of blocks that the closure transaction should be confirmed by.
    int32 target_conf = 3;

    /// A manual fee rate set in sat/byte that should be used when crafting the closure transaction.
    int64 sat_per_byte = 4;

    /*
    An optional address to send funds to in the case of a cooperative close.
    If the channel was opened with an upfront shutdown script and this field
    is set, the request to close will fail because the channel must pay out
    to the upfront shutdown addresss.
    */
    string delivery_address = 5 [json_name = "delivery_address"];
}

message CloseStatusUpdate {
    oneof update {
        PendingUpdate close_pending = 1 [json_name = "close_pending"];
        ChannelCloseUpdate chan_close = 3 [json_name = "chan_close"];
    }
}

message PendingUpdate {
    bytes txid = 1 [json_name = "txid"];
    uint32 output_index = 2 [json_name = "output_index"];
}

message OpenChannelRequest {
    /**
    The pubkey of the node to open a channel with. When using REST, this field
    must be encoded as base64.
    */
    bytes node_pubkey = 2 [json_name = "node_pubkey"];

    /**
    The hex encoded pubkey of the node to open a channel with. Deprecated now
    that the REST gateway supports base64 encoding of bytes fields.
    */
    string node_pubkey_string = 3 [json_name = "node_pubkey_string", deprecated = true];

    /// The number of satoshis the wallet should commit to the channel
    int64 local_funding_amount = 4 [json_name = "local_funding_amount"];

    /// The number of satoshis to push to the remote side as part of the initial commitment state
    int64 push_sat = 5 [json_name = "push_sat"];

    /// The target number of blocks that the funding transaction should be confirmed by.
    int32 target_conf = 6;

    /// A manual fee rate set in sat/byte that should be used when crafting the funding transaction.
    int64 sat_per_byte = 7;

    /// Whether this channel should be private, not announced to the greater network.
    bool private = 8 [json_name = "private"];

    /// The minimum value in millisatoshi we will require for incoming HTLCs on the channel.
    int64 min_htlc_msat = 9 [json_name = "min_htlc_msat"];

    /// The delay we require on the remote's commitment transaction. If this is not set, it will be scaled automatically with the channel size.
    uint32 remote_csv_delay = 10 [json_name = "remote_csv_delay"];

    /// The minimum number of confirmations each one of your outputs used for the funding transaction must satisfy.
    int32 min_confs = 11 [json_name = "min_confs"];

    /// Whether unconfirmed outputs should be used as inputs for the funding transaction.
    bool spend_unconfirmed = 12 [json_name = "spend_unconfirmed"];

    /*
    Close address is an optional address which specifies the address to which
    funds should be paid out to upon cooperative close. This field may only be
    set if the peer supports the option upfront feature bit (call listpeers
    to check). The remote peer will only accept cooperative closes to this
    address if it is set.

    Note: If this value is set on channel creation, you will *not* be able to
    cooperatively close out to a different address.
    */
    string close_address = 13 [json_name = "close_address"];

    /**
    Funding shims are an optional argument that allow the caller to intercept
    certain funding functionality. For example, a shim can be provided to use a
    particular key for the commitment key (ideally cold) rather than use one
    that is generated by the wallet as normal, or signal that signing will be
    carried out in an interactive manner (PSBT based).
    */
    FundingShim funding_shim = 14 [json_name = "funding_shim"];
}
message OpenStatusUpdate {
    oneof update {
        PendingUpdate chan_pending = 1 [json_name = "chan_pending"];
        ChannelOpenUpdate chan_open = 3 [json_name = "chan_open"];
   }

    /**
    The pending channel ID of the created channel. This value may be used to
    further the funding flow manually via the FundingStateStep method.
    */
    bytes pending_chan_id = 4 [json_name = "pending_chan_id"];
}

message KeyLocator {
    /// The family of key being identified.
    int32 key_family = 1;

    /// The precise index of the key being identified.
    int32 key_index = 2;
}

message KeyDescriptor {
     /**
     The raw bytes of the key being identified. 
     */
     bytes raw_key_bytes = 1;

     /** 
     The key locator that identifies which key to use for signing. 
     */
     KeyLocator key_loc = 2;
}

message ChanPointShim {
    /**
    The size of the pre-crafted output to be used as the channel point for this
    channel funding.
    */
    int64 amt = 1;

    /// The target channel point to refrence in created commitment transactions.
    ChannelPoint chan_point = 2;

    /// Our local key to use when creating the multi-sig output.
    KeyDescriptor local_key = 3;

    /// The key of the remote party to use when creating the multi-sig output.
    bytes remote_key = 4;

    /**
    If non-zero, then this will be used as the pending channel ID on the wire
    protocol to initate the funding request. This is an optional field, and
    should only be set if the responder is already expecting a specific pending
    channel ID.
    */
    bytes pending_chan_id = 5;
}

message FundingShim {
    oneof shim {
        ChanPointShim chan_point_shim = 1;
    }
}

message FundingShimCancel {
    /// The pending channel ID of the channel to cancel the funding shim for.
    bytes pending_chan_id = 1;
}

message FundingTransitionMsg {
    oneof trigger {
        /**
        The funding shim to regsiter. This should be used before any
        channel funding has began by the remote party, as it is intended as a
        prepatory step for the full channel funding.
        */
        FundingShim shim_register = 1;

        /// Used to cancel an existing registered funding shim.
        FundingShimCancel shim_cancel = 2;
    }
}

message FundingStateStepResp {
}

message PendingHTLC {

    /// The direction within the channel that the htlc was sent
    bool incoming = 1 [ json_name = "incoming" ];

    /// The total value of the htlc
    int64 amount = 2 [ json_name = "amount" ];

    /// The final output to be swept back to the user's wallet
    string outpoint = 3 [ json_name = "outpoint" ];

    /// The next block height at which we can spend the current stage
    uint32 maturity_height = 4 [ json_name = "maturity_height" ];

    /**
       The number of blocks remaining until the current stage can be swept.
       Negative values indicate how many blocks have passed since becoming
       mature.
    */
    int32 blocks_til_maturity = 5 [ json_name = "blocks_til_maturity" ];

    /// Indicates whether the htlc is in its first or second stage of recovery
    uint32 stage = 6 [ json_name = "stage" ];
}

message PendingChannelsRequest {}
message PendingChannelsResponse {
    message PendingChannel {
        string remote_node_pub = 1 [ json_name = "remote_node_pub" ];
        string channel_point = 2 [ json_name = "channel_point" ];

        int64 capacity = 3 [ json_name = "capacity" ];

        int64 local_balance = 4 [ json_name = "local_balance" ];
        int64 remote_balance = 5 [ json_name = "remote_balance" ];
       
        /// The minimum satoshis this node is required to reserve in its balance.
        int64 local_chan_reserve_sat = 6 [json_name = "local_chan_reserve_sat"];

        /**
        The minimum satoshis the other node is required to reserve in its
        balance.
        */
        int64 remote_chan_reserve_sat = 7 [json_name = "remote_chan_reserve_sat"];
    }

    message PendingOpenChannel {
        /// The pending channel
        PendingChannel channel = 1 [ json_name = "channel" ];

        /// The height at which this channel will be confirmed
        uint32 confirmation_height = 2 [ json_name = "confirmation_height" ];

        /**
        The amount calculated to be paid in fees for the current set of
        commitment transactions. The fee amount is persisted with the channel
        in order to allow the fee amount to be removed and recalculated with
        each channel state update, including updates that happen after a system
        restart.
        */
        int64 commit_fee = 4 [json_name = "commit_fee" ];

        /// The weight of the commitment transaction
        int64 commit_weight = 5 [ json_name = "commit_weight" ];

        /**
        The required number of satoshis per kilo-weight that the requester will
        pay at all times, for both the funding transaction and commitment
        transaction. This value can later be updated once the channel is open.
        */
        int64 fee_per_kw = 6 [ json_name = "fee_per_kw" ];
    }

    message WaitingCloseChannel {
        /// The pending channel waiting for closing tx to confirm
        PendingChannel channel = 1;

        /// The balance in satoshis encumbered in this channel
        int64 limbo_balance = 2 [ json_name = "limbo_balance" ];
    }

    message ClosedChannel {
        /// The pending channel to be closed
        PendingChannel channel = 1;

        /// The transaction id of the closing transaction
        string closing_txid = 2 [ json_name = "closing_txid" ];
    }

    message ForceClosedChannel {
        /// The pending channel to be force closed
        PendingChannel channel = 1 [ json_name = "channel" ];

        /// The transaction id of the closing transaction
        string closing_txid = 2 [ json_name = "closing_txid" ];

        /// The balance in satoshis encumbered in this pending channel
        int64 limbo_balance = 3 [ json_name = "limbo_balance" ];

        /// The height at which funds can be swept into the wallet
        uint32 maturity_height = 4 [ json_name = "maturity_height" ];

        /*
          Remaining # of blocks until the commitment output can be swept.
          Negative values indicate how many blocks have passed since becoming
          mature.
        */
        int32 blocks_til_maturity = 5 [ json_name = "blocks_til_maturity" ];

        /// The total value of funds successfully recovered from this channel
        int64 recovered_balance = 6 [ json_name = "recovered_balance" ];

        repeated PendingHTLC pending_htlcs = 8 [ json_name = "pending_htlcs" ];
    }

    /// The balance in satoshis encumbered in pending channels
    int64 total_limbo_balance = 1 [ json_name = "total_limbo_balance" ];

    /// Channels pending opening
    repeated PendingOpenChannel pending_open_channels = 2 [ json_name = "pending_open_channels" ];

    /// Channels pending closing
    repeated ClosedChannel pending_closing_channels = 3 [ json_name = "pending_closing_channels" ];

    /// Channels pending force closing
    repeated ForceClosedChannel pending_force_closing_channels =  4 [ json_name = "pending_force_closing_channels" ];

    /// Channels waiting for closing tx to confirm
    repeated WaitingCloseChannel waiting_close_channels = 5 [ json_name = "waiting_close_channels" ];
}

message ChannelEventSubscription {
}

message ChannelEventUpdate {
    oneof channel {
        Channel open_channel = 1 [ json_name = "open_channel" ];
        ChannelCloseSummary closed_channel = 2 [ json_name = "closed_channel" ];
        ChannelPoint active_channel = 3 [ json_name = "active_channel" ];
        ChannelPoint inactive_channel = 4 [ json_name = "inactive_channel" ];
        PendingUpdate pending_open_channel = 6 [json_name = "pending_open_channel"];
    }

    enum UpdateType {
         OPEN_CHANNEL = 0;
         CLOSED_CHANNEL = 1;
         ACTIVE_CHANNEL = 2;
         INACTIVE_CHANNEL = 3;
         PENDING_OPEN_CHANNEL = 4;
    }

    UpdateType type = 5 [ json_name = "type" ];
}

message WalletBalanceRequest {
}
message WalletBalanceResponse {
    /// The balance of the wallet
    int64 total_balance = 1 [json_name = "total_balance"];

    /// The confirmed balance of a wallet(with >= 1 confirmations)
    int64 confirmed_balance = 2 [json_name = "confirmed_balance"];

    /// The unconfirmed balance of a wallet(with 0 confirmations)
    int64 unconfirmed_balance = 3 [json_name = "unconfirmed_balance"];
}

message ChannelBalanceRequest {
}
message ChannelBalanceResponse {
    /// Sum of channels balances denominated in satoshis
    int64 balance = 1 [json_name = "balance"];

    /// Sum of channels pending balances denominated in satoshis
    int64 pending_open_balance = 2 [json_name = "pending_open_balance"];
}

message QueryRoutesRequest {
    /// The 33-byte hex-encoded public key for the payment destination
    string pub_key = 1;

    /**
    The amount to send expressed in satoshis.

    The fields amt and amt_msat are mutually exclusive.
    */
    int64 amt = 2;

    /**
    The amount to send expressed in millisatoshis.

    The fields amt and amt_msat are mutually exclusive.
    */
    int64 amt_msat = 12;

    reserved 3;

    /**
    An optional CLTV delta from the current height that should be used for the
    timelock of the final hop. Note that unlike SendPayment, QueryRoutes does
    not add any additional block padding on top of final_ctlv_delta. This
    padding of a few blocks needs to be added manually or otherwise failures may
    happen when a block comes in while the payment is in flight.
    */
    int32 final_cltv_delta = 4;

    /**
    The maximum number of satoshis that will be paid as a fee of the payment.
    This value can be represented either as a percentage of the amount being
    sent, or as a fixed amount of the maximum fee the user is willing the pay to
    send the payment.
    */
    FeeLimit fee_limit = 5;

    /**
    A list of nodes to ignore during path finding. When using REST, these fields
    must be encoded as base64.
    */
    repeated bytes ignored_nodes = 6;

    /**
    Deprecated. A list of edges to ignore during path finding.
    */
    repeated EdgeLocator ignored_edges = 7 [deprecated = true];

    /**
    The source node where the request route should originated from. If empty,
    self is assumed.
    */
    string source_pub_key = 8;

    /**
    If set to true, edge probabilities from mission control will be used to get
    the optimal route.
    */
    bool use_mission_control = 9;

    /**
    A list of directed node pairs that will be ignored during path finding.
    */
    repeated NodePair ignored_pairs = 10;

    /** 
    An optional maximum total time lock for the route. If the source is empty or
    ourselves, this should not exceed lnd's `--max-cltv-expiry` setting. If
    zero, then the value of `--max-cltv-expiry` is used as the limit.
    */
    uint32 cltv_limit = 11;

    /** 
    An optional field that can be used to pass an arbitrary set of TLV records
    to a peer which understands the new records. This can be used to pass
    application specific data during the payment attempt. If the destination
    does not support the specified recrods, and error will be returned.
    Record types are required to be in the custom range >= 65536. When using
    REST, the values must be encoded as base64.
    */
    map<uint64, bytes> dest_custom_records = 13;

    /**
    The channel id of the channel that must be taken to the first hop. If zero,
    any channel may be used.
    */
    uint64 outgoing_chan_id = 14 [jstype = JS_STRING];

    /**
    The pubkey of the last hop of the route. If empty, any hop may be used.
    */
    bytes last_hop_pubkey = 15;

    /**
    Optional route hints to reach the destination through private channels.
    */
    repeated lnrpc.RouteHint route_hints = 16;

    /**
    Features assumed to be supported by the final node. All transitive feature
    dependencies must also be set properly. For a given feature bit pair, either
    optional or remote may be set, but not both. If this field is nil or empty,
    the router will try to load destination features from the graph as a
    fallback.
    */
    repeated lnrpc.FeatureBit dest_features = 17;
}

message NodePair {
    /**
    The sending node of the pair. When using REST, this field must be encoded as
    base64.
    */
    bytes from = 1;

    /**
    The receiving node of the pair. When using REST, this field must be encoded
    as base64.
    */
    bytes to = 2;
}

message EdgeLocator {
    /// The short channel id of this edge.
    uint64 channel_id = 1 [jstype = JS_STRING];

    /**
    The direction of this edge. If direction_reverse is false, the direction
    of this edge is from the channel endpoint with the lexicographically smaller
    pub key to the endpoint with the larger pub key. If direction_reverse is
    is true, the edge goes the other way.
    */
    bool direction_reverse = 2;
}

message QueryRoutesResponse {
    /**
    The route that results from the path finding operation. This is still a
    repeated field to retain backwards compatibility.
    */
    repeated Route routes = 1 [json_name = "routes"];

    /**
    The success probability of the returned route based on the current mission
    control state. [EXPERIMENTAL]
    */
    double success_prob = 2 [json_name = "success_prob"];
}

message Hop {
    /**
    The unique channel ID for the channel. The first 3 bytes are the block
    height, the next 3 the index within the block, and the last 2 bytes are the
    output index for the channel.
    */
    uint64 chan_id = 1 [json_name = "chan_id", jstype = JS_STRING];
    int64 chan_capacity = 2 [json_name = "chan_capacity"];
    int64 amt_to_forward = 3 [json_name = "amt_to_forward", deprecated = true];
    int64 fee = 4 [json_name = "fee", deprecated = true];
    uint32 expiry = 5 [json_name = "expiry"];
    int64 amt_to_forward_msat = 6 [json_name = "amt_to_forward_msat"];
    int64 fee_msat = 7 [json_name = "fee_msat"];

    /**
    An optional public key of the hop. If the public key is given, the payment
    can be executed without relying on a copy of the channel graph.
    */
    string pub_key = 8 [json_name = "pub_key"];

    /** 
    If set to true, then this hop will be encoded using the new variable length
    TLV format. Note that if any custom tlv_records below are specified, then
    this field MUST be set to true for them to be encoded properly.
    */
    bool tlv_payload = 9 [json_name = "tlv_payload"];

    /**
    An optional TLV record tha singals the use of an MPP payment. If present,
    the receiver will enforce that that the same mpp_record is included in the
    final hop payload of all non-zero payments in the HTLC set. If empty, a
    regular single-shot payment is or was attempted.
    */
    MPPRecord mpp_record = 10 [json_name = "mpp_record"];

    /**
    An optional set of key-value TLV records. This is useful within the context
    of the SendToRoute call as it allows callers to specify arbitrary K-V pairs
    to drop off at each hop within the onion.
    */
    map<uint64, bytes> custom_records = 11 [json_name = "custom_records"];
}

message MPPRecord {
    /**
    A unique, random identifier used to authenticate the sender as the intended
    payer of a multi-path payment. The payment_addr must be the same for all
    subpayments, and match the payment_addr provided in the receiver's invoice.
    The same payment_addr must be used on all subpayments.
    */
    bytes payment_addr = 11 [json_name = "payment_addr"];

    /**
    The total amount in milli-satoshis being sent as part of a larger multi-path
    payment. The caller is responsible for ensuring subpayments to the same node
    and payment_hash sum exactly to total_amt_msat. The same
    total_amt_msat must be used on all subpayments.
    */
    int64 total_amt_msat = 10 [json_name = "total_amt_msat"];
}

/**
A path through the channel graph which runs over one or more channels in
succession. This struct carries all the information required to craft the
Sphinx onion packet, and send the payment along the first hop in the path. A
route is only selected as valid if all the channels have sufficient capacity to
carry the initial payment amount after fees are accounted for.
*/
message Route {

    /**
    The cumulative (final) time lock across the entire route. This is the CLTV
    value that should be extended to the first hop in the route. All other hops
    will decrement the time-lock as advertised, leaving enough time for all
    hops to wait for or present the payment preimage to complete the payment.
    */
    uint32 total_time_lock = 1 [json_name = "total_time_lock"];

    /**
    The sum of the fees paid at each hop within the final route. In the case
    of a one-hop payment, this value will be zero as we don't need to pay a fee
    to ourselves.
    */
    int64 total_fees = 2 [json_name = "total_fees", deprecated = true];

    /**
    The total amount of funds required to complete a payment over this route.
    This value includes the cumulative fees at each hop. As a result, the HTLC
    extended to the first-hop in the route will need to have at least this many
    satoshis, otherwise the route will fail at an intermediate node due to an
    insufficient amount of fees.
    */
    int64 total_amt = 3 [json_name = "total_amt", deprecated = true];

    /**
    Contains details concerning the specific forwarding details at each hop.
    */
    repeated Hop hops = 4 [json_name = "hops"];
    
    /**
    The total fees in millisatoshis.
    */
    int64 total_fees_msat = 5 [json_name = "total_fees_msat"];
    
    /**
    The total amount in millisatoshis.
    */
    int64 total_amt_msat = 6 [json_name = "total_amt_msat"];
}

message NodeInfoRequest {
    /// The 33-byte hex-encoded compressed public of the target node 
    string pub_key = 1;

    /// If true, will include all known channels associated with the node.
    bool include_channels = 2;
}

message NodeInfo {

    /**
    An individual vertex/node within the channel graph. A node is
    connected to other nodes by one or more channel edges emanating from it. As
    the graph is directed, a node will also have an incoming edge attached to
    it for each outgoing edge.
    */
    LightningNode node = 1 [json_name = "node"];

    /// The total number of channels for the node.
    uint32 num_channels = 2 [json_name = "num_channels"];

    /// The sum of all channels capacity for the node, denominated in satoshis.
    int64 total_capacity = 3 [json_name = "total_capacity"];

    /// A list of all public channels for the node.
    repeated ChannelEdge channels = 4 [json_name = "channels"];
}

/**
An individual vertex/node within the channel graph. A node is
connected to other nodes by one or more channel edges emanating from it. As the
graph is directed, a node will also have an incoming edge attached to it for
each outgoing edge.
*/
message LightningNode {
    uint32 last_update = 1 [ json_name = "last_update" ];
    string pub_key = 2 [ json_name = "pub_key" ];
    string alias = 3 [ json_name = "alias" ];
    repeated NodeAddress addresses = 4 [ json_name = "addresses" ];
    string color = 5 [ json_name = "color" ];
    map<uint32, Feature> features = 6 [ json_name = "features" ];
}

message NodeAddress {
    string network = 1 [ json_name = "network" ];
    string addr = 2 [ json_name = "addr" ];
}

message RoutingPolicy {
    uint32 time_lock_delta = 1 [json_name = "time_lock_delta"];
    int64 min_htlc = 2 [json_name = "min_htlc"];
    int64 fee_base_msat = 3 [json_name = "fee_base_msat"];
    int64 fee_rate_milli_msat = 4 [json_name = "fee_rate_milli_msat"];
    bool disabled = 5 [json_name = "disabled"];
    uint64 max_htlc_msat = 6 [json_name = "max_htlc_msat"];
    uint32 last_update = 7 [json_name = "last_update"];
}

/**
A fully authenticated channel along with all its unique attributes.
Once an authenticated channel announcement has been processed on the network,
then an instance of ChannelEdgeInfo encapsulating the channels attributes is
stored. The other portions relevant to routing policy of a channel are stored
within a ChannelEdgePolicy for each direction of the channel.
*/
message ChannelEdge {

    /**
    The unique channel ID for the channel. The first 3 bytes are the block
    height, the next 3 the index within the block, and the last 2 bytes are the
    output index for the channel.
    */
    uint64 channel_id = 1 [json_name = "channel_id", jstype = JS_STRING];
    string chan_point = 2 [json_name = "chan_point"];

    uint32 last_update = 3 [json_name = "last_update", deprecated = true];

    string node1_pub = 4 [json_name = "node1_pub"];
    string node2_pub = 5 [json_name = "node2_pub"];

    int64 capacity = 6 [json_name = "capacity"];

    RoutingPolicy node1_policy = 7 [json_name = "node1_policy"];
    RoutingPolicy node2_policy = 8 [json_name = "node2_policy"];
}

message ChannelGraphRequest {
     /**
     Whether unannounced channels are included in the response or not. If set,
     unannounced channels are included. Unannounced channels are both private
     channels, and public channels that are not yet announced to the network.
     */
     bool include_unannounced = 1 [json_name = "include_unannounced"];
}

/// Returns a new instance of the directed channel graph.
message ChannelGraph {
    /// The list of `LightningNode`s in this channel graph
    repeated LightningNode nodes = 1 [json_name = "nodes"];

    /// The list of `ChannelEdge`s in this channel graph
    repeated ChannelEdge edges = 2 [json_name = "edges"];
}

message ChanInfoRequest {
    /**
    The unique channel ID for the channel. The first 3 bytes are the block
    height, the next 3 the index within the block, and the last 2 bytes are the
    output index for the channel.
    */
    uint64 chan_id = 1 [jstype = JS_STRING];
}

message NetworkInfoRequest {
}
message NetworkInfo {
    uint32 graph_diameter = 1 [json_name = "graph_diameter"];
    double avg_out_degree = 2 [json_name = "avg_out_degree"];
    uint32 max_out_degree = 3 [json_name = "max_out_degree"];

    uint32 num_nodes = 4 [json_name = "num_nodes"];
    uint32 num_channels = 5 [json_name = "num_channels"];

    int64 total_network_capacity = 6 [json_name = "total_network_capacity"];

    double avg_channel_size = 7 [json_name = "avg_channel_size"];
    int64 min_channel_size = 8 [json_name = "min_channel_size"];
    int64 max_channel_size = 9 [json_name = "max_channel_size"];
    int64 median_channel_size_sat = 10 [json_name = "median_channel_size_sat"];

    // The number of edges marked as zombies.
    uint64 num_zombie_chans = 11 [json_name = "num_zombie_chans"];

    // TODO(roasbeef): fee rate info, expiry
    //  * also additional RPC for tracking fee info once in
}

message StopRequest{}
message StopResponse{}

message GraphTopologySubscription {}
message GraphTopologyUpdate {
    repeated NodeUpdate node_updates = 1;
    repeated ChannelEdgeUpdate channel_updates = 2;
    repeated ClosedChannelUpdate closed_chans = 3;
}
message NodeUpdate {
    repeated string addresses = 1;
    string identity_key = 2;
    bytes global_features = 3;
    string alias = 4;
    string color = 5;
}
message ChannelEdgeUpdate {
    /**
    The unique channel ID for the channel. The first 3 bytes are the block
    height, the next 3 the index within the block, and the last 2 bytes are the
    output index for the channel.
    */
    uint64 chan_id = 1 [jstype = JS_STRING];

    ChannelPoint chan_point = 2;

    int64 capacity = 3;

    RoutingPolicy routing_policy  = 4;

    string advertising_node  = 5;
    string connecting_node = 6;
}
message ClosedChannelUpdate {
    /**
    The unique channel ID for the channel. The first 3 bytes are the block
    height, the next 3 the index within the block, and the last 2 bytes are the
    output index for the channel.
    */
    uint64 chan_id = 1 [jstype = JS_STRING];
    int64 capacity = 2;
    uint32 closed_height = 3;
    ChannelPoint chan_point = 4;
}

message HopHint {
    /// The public key of the node at the start of the channel.
    string node_id = 1 [json_name = "node_id"];

    /// The unique identifier of the channel.
    uint64 chan_id = 2 [json_name = "chan_id", jstype = JS_STRING];

    /// The base fee of the channel denominated in millisatoshis.
    uint32 fee_base_msat = 3 [json_name = "fee_base_msat"];

    /**
    The fee rate of the channel for sending one satoshi across it denominated in
    millionths of a satoshi.
    */
    uint32 fee_proportional_millionths = 4 [json_name = "fee_proportional_millionths"];

    /// The time-lock delta of the channel.
    uint32 cltv_expiry_delta = 5 [json_name = "cltv_expiry_delta"];
}

message RouteHint {
    /**
    A list of hop hints that when chained together can assist in reaching a
    specific destination.
    */
    repeated HopHint hop_hints = 1 [json_name = "hop_hints"];
}

message Invoice {
    /**
    An optional memo to attach along with the invoice. Used for record keeping
    purposes for the invoice's creator, and will also be set in the description
    field of the encoded payment request if the description_hash field is not
    being used.
    */
    string memo = 1 [json_name = "memo"];

    reserved 2;

    /**
    The hex-encoded preimage (32 byte) which will allow settling an incoming
    HTLC payable to this preimage. When using REST, this field must be encoded
    as base64.
    */
    bytes r_preimage = 3 [json_name = "r_preimage"];

    /**
    The hash of the preimage. When using REST, this field must be encoded as
    base64.
    */
    bytes r_hash = 4 [json_name = "r_hash"];

    /**
    The value of this invoice in satoshis

    The fields value and value_msat are mutually exclusive.
    */
    int64 value = 5 [json_name = "value"];

    /**
    The value of this invoice in millisatoshis

    The fields value and value_msat are mutually exclusive.
    */
    int64 value_msat = 23 [json_name = "value_msat"];

    /// Whether this invoice has been fulfilled
    bool settled = 6 [json_name = "settled", deprecated = true];

    /// When this invoice was created
    int64 creation_date = 7 [json_name = "creation_date"];

    /// When this invoice was settled
    int64 settle_date = 8 [json_name = "settle_date"];

    /**
    A bare-bones invoice for a payment within the Lightning Network. With the
    details of the invoice, the sender has all the data necessary to send a
    payment to the recipient.
    */
    string payment_request = 9 [json_name = "payment_request"];

    /**
    Hash (SHA-256) of a description of the payment. Used if the description of
    payment (memo) is too long to naturally fit within the description field
    of an encoded payment request. When using REST, this field must be encoded
    as base64.
    */
    bytes description_hash = 10 [json_name = "description_hash"];

    /// Payment request expiry time in seconds. Default is 3600 (1 hour).
    int64 expiry = 11 [json_name = "expiry"];

    /// Fallback on-chain address.
    string fallback_addr = 12 [json_name = "fallback_addr"];

    /// Delta to use for the time-lock of the CLTV extended to the final hop.
    uint64 cltv_expiry = 13 [json_name = "cltv_expiry"];

    /**
    Route hints that can each be individually used to assist in reaching the
    invoice's destination.
    */
    repeated RouteHint route_hints = 14 [json_name = "route_hints"];

    /// Whether this invoice should include routing hints for private channels.
    bool private = 15 [json_name = "private"];

    /**
    The "add" index of this invoice. Each newly created invoice will increment
    this index making it monotonically increasing. Callers to the
    SubscribeInvoices call can use this to instantly get notified of all added
    invoices with an add_index greater than this one.
    */
    uint64 add_index = 16 [json_name = "add_index"];

    /**
    The "settle" index of this invoice. Each newly settled invoice will
    increment this index making it monotonically increasing. Callers to the
    SubscribeInvoices call can use this to instantly get notified of all
    settled invoices with an settle_index greater than this one.
    */
    uint64 settle_index = 17 [json_name = "settle_index"];

    /// Deprecated, use amt_paid_sat or amt_paid_msat.
    int64 amt_paid = 18 [json_name = "amt_paid", deprecated = true];

    /**
    The amount that was accepted for this invoice, in satoshis. This will ONLY
    be set if this invoice has been settled. We provide this field as if the
    invoice was created with a zero value, then we need to record what amount
    was ultimately accepted. Additionally, it's possible that the sender paid
    MORE that was specified in the original invoice. So we'll record that here
    as well.
    */
    int64 amt_paid_sat = 19 [json_name = "amt_paid_sat"];

    /**
    The amount that was accepted for this invoice, in millisatoshis. This will
    ONLY be set if this invoice has been settled. We provide this field as if
    the invoice was created with a zero value, then we need to record what
    amount was ultimately accepted. Additionally, it's possible that the sender
    paid MORE that was specified in the original invoice. So we'll record that
    here as well.
    */
    int64 amt_paid_msat = 20 [json_name = "amt_paid_msat"];

    enum InvoiceState {
        OPEN = 0;
        SETTLED = 1;
        CANCELED = 2;
        ACCEPTED = 3;
    }

    /**
    The state the invoice is in.
    */
    InvoiceState state = 21 [json_name = "state"];

    /// List of HTLCs paying to this invoice [EXPERIMENTAL].
    repeated InvoiceHTLC htlcs = 22 [json_name = "htlcs"];

    /// List of features advertised on the invoice.
    map<uint32, Feature> features = 24 [json_name = "features"];
    
    /**
    Indicates if this invoice was a spontaneous payment that arrived via keysend
    [EXPERIMENTAL].
    */
    bool is_keysend = 25 [json_name = "is_keysend"];
}

enum InvoiceHTLCState {
    ACCEPTED = 0;
    SETTLED = 1;
    CANCELED = 2;
}

/// Details of an HTLC that paid to an invoice
message InvoiceHTLC {
    /// Short channel id over which the htlc was received.
    uint64 chan_id = 1 [json_name = "chan_id", jstype = JS_STRING];

    /// Index identifying the htlc on the channel.
    uint64 htlc_index = 2 [json_name = "htlc_index"];

    /// The amount of the htlc in msat.
    uint64 amt_msat = 3 [json_name = "amt_msat"];

    /// Block height at which this htlc was accepted.
    int32 accept_height = 4 [json_name = "accept_height"];

    /// Time at which this htlc was accepted.
    int64 accept_time = 5 [json_name = "accept_time"];

    /// Time at which this htlc was settled or canceled.
    int64 resolve_time = 6 [json_name = "resolve_time"];
    
    /// Block height at which this htlc expires.
    int32 expiry_height = 7 [json_name = "expiry_height"];

    /// Current state the htlc is in.
    InvoiceHTLCState state = 8 [json_name = "state"];

    /// Custom tlv records.
    map<uint64, bytes> custom_records = 9 [json_name = "custom_records"];

    /// The total amount of the mpp payment in msat.
    uint64 mpp_total_amt_msat = 10 [json_name = "mpp_total_amt_msat"];
}

message AddInvoiceResponse {
    bytes r_hash = 1 [json_name = "r_hash"];

    /**
    A bare-bones invoice for a payment within the Lightning Network. With the
    details of the invoice, the sender has all the data necessary to send a
    payment to the recipient.
    */
    string payment_request = 2 [json_name = "payment_request"];

    /**
    The "add" index of this invoice. Each newly created invoice will increment
    this index making it monotonically increasing. Callers to the
    SubscribeInvoices call can use this to instantly get notified of all added
    invoices with an add_index greater than this one.
    */
    uint64 add_index = 16 [json_name = "add_index"];
}
message PaymentHash {
    /**
    The hex-encoded payment hash of the invoice to be looked up. The passed
    payment hash must be exactly 32 bytes, otherwise an error is returned.
    Deprecated now that the REST gateway supports base64 encoding of bytes
    fields.
    */
    string r_hash_str = 1 [json_name = "r_hash_str", deprecated = true];

    /**
    The payment hash of the invoice to be looked up. When using REST, this field
    must be encoded as base64.
    */
    bytes r_hash = 2 [json_name = "r_hash"];
}

message ListInvoiceRequest {
    /**
    If set, only invoices that are not settled and not canceled will be returned
    in the response.
    */
    bool pending_only = 1 [json_name = "pending_only"];

    /**
    The index of an invoice that will be used as either the start or end of a
    query to determine which invoices should be returned in the response.
    */
    uint64 index_offset = 4 [json_name = "index_offset"];

    /// The max number of invoices to return in the response to this query.
    uint64 num_max_invoices = 5 [json_name = "num_max_invoices"];

    /**
    If set, the invoices returned will result from seeking backwards from the
    specified index offset. This can be used to paginate backwards.
    */
    bool reversed = 6 [json_name = "reversed"];
}
message ListInvoiceResponse {
    /**
    A list of invoices from the time slice of the time series specified in the
    request.
    */
    repeated Invoice invoices = 1 [json_name = "invoices"];

    /**
    The index of the last item in the set of returned invoices. This can be used
    to seek further, pagination style.
    */
    uint64 last_index_offset = 2 [json_name = "last_index_offset"];

    /**
    The index of the last item in the set of returned invoices. This can be used
    to seek backwards, pagination style.
    */
    uint64 first_index_offset = 3 [json_name = "first_index_offset"];
}

message InvoiceSubscription {
    /**
    If specified (non-zero), then we'll first start by sending out
    notifications for all added indexes with an add_index greater than this
    value. This allows callers to catch up on any events they missed while they
    weren't connected to the streaming RPC.
    */
    uint64 add_index = 1 [json_name = "add_index"];

    /**
    If specified (non-zero), then we'll first start by sending out
    notifications for all settled indexes with an settle_index greater than
    this value. This allows callers to catch up on any events they missed while
    they weren't connected to the streaming RPC.
    */
    uint64 settle_index = 2 [json_name = "settle_index"];
}


message Payment {
    /// The payment hash
    string payment_hash = 1 [json_name = "payment_hash"];

    /// Deprecated, use value_sat or value_msat.
    int64 value = 2 [json_name = "value", deprecated = true];

    /// Deprecated, use creation_time_ns
    int64 creation_date = 3 [json_name = "creation_date", deprecated = true];

    /// The path this payment took.
    repeated string path = 4 [json_name = "path", deprecated = true];

    /// Deprecated, use fee_sat or fee_msat.
    int64 fee = 5 [json_name = "fee", deprecated = true];

    /// The payment preimage
    string payment_preimage = 6 [json_name = "payment_preimage"];

    /// The value of the payment in satoshis
    int64 value_sat = 7 [json_name = "value_sat"];

    /// The value of the payment in milli-satoshis
    int64 value_msat = 8 [json_name = "value_msat"];

    /// The optional payment request being fulfilled.
    string payment_request = 9 [json_name = "payment_request"];

    enum PaymentStatus {
        UNKNOWN = 0;
        IN_FLIGHT = 1;
        SUCCEEDED = 2;
        FAILED = 3;
    }

    // The status of the payment.
    PaymentStatus status = 10 [json_name = "status"];

    ///  The fee paid for this payment in satoshis
    int64 fee_sat = 11 [json_name = "fee_sat"];

    ///  The fee paid for this payment in milli-satoshis
    int64 fee_msat = 12 [json_name = "fee_msat"];

    /// The time in UNIX nanoseconds at which the payment was created.
    int64 creation_time_ns = 13 [json_name = "creation_time_ns"];

    /// The HTLCs made in attempt to settle the payment [EXPERIMENTAL].
    repeated HTLCAttempt htlcs = 14 [json_name = "htlcs"];
}

message HTLCAttempt {
        enum HTLCStatus {
                IN_FLIGHT = 0;
                SUCCEEDED = 1;
                FAILED = 2;
        }

        /// The status of the HTLC.
        HTLCStatus status = 1 [json_name = "status"];

        /// The route taken by this HTLC.
        Route route = 2 [json_name = "route"];

        /// The time in UNIX nanoseconds at which this HTLC was sent.
        int64 attempt_time_ns = 3 [json_name = "attempt_time_ns"];

        /**
        The time in UNIX nanoseconds at which this HTLC was settled or failed.
        This value will not be set if the HTLC is still IN_FLIGHT.
        */
        int64 resolve_time_ns = 4 [json_name = "resolve_time_ns"];
}

message ListPaymentsRequest {
    /**
    If true, then return payments that have not yet fully completed. This means
    that pending payments, as well as failed payments will show up if this
    field is set to True.
    */
    bool include_incomplete = 1;
}

message ListPaymentsResponse {
    /// The list of payments
    repeated Payment payments = 1 [json_name = "payments"];
}

message DeleteAllPaymentsRequest {
}

message DeleteAllPaymentsResponse {
}

message AbandonChannelRequest {
    ChannelPoint channel_point = 1;
}

message AbandonChannelResponse {
}


message DebugLevelRequest {
    bool show = 1;
    string level_spec = 2;
}
message DebugLevelResponse {
    string sub_systems = 1 [json_name = "sub_systems"];
}

message PayReqString {
    /// The payment request string to be decoded
    string pay_req = 1;
}
message PayReq {
    string destination = 1 [json_name = "destination"];
    string payment_hash = 2 [json_name = "payment_hash"];
    int64 num_satoshis = 3 [json_name = "num_satoshis"];
    int64 timestamp = 4 [json_name = "timestamp"];
    int64 expiry = 5 [json_name = "expiry"];
    string description = 6 [json_name = "description"];
    string description_hash = 7 [json_name = "description_hash"];
    string fallback_addr = 8 [json_name = "fallback_addr"];
    int64 cltv_expiry = 9 [json_name = "cltv_expiry"];
    repeated RouteHint route_hints = 10 [json_name = "route_hints"];
    bytes payment_addr = 11 [json_name = "payment_addr"];
    int64 num_msat = 12 [json_name = "num_msat"];
    map<uint32, Feature> features = 13 [json_name = "features"];
}

enum FeatureBit {
        DATALOSS_PROTECT_REQ = 0;
        DATALOSS_PROTECT_OPT = 1;
        INITIAL_ROUING_SYNC = 3;
        UPFRONT_SHUTDOWN_SCRIPT_REQ = 4;
        UPFRONT_SHUTDOWN_SCRIPT_OPT = 5;
        GOSSIP_QUERIES_REQ = 6;
        GOSSIP_QUERIES_OPT = 7;
        TLV_ONION_REQ = 8;
        TLV_ONION_OPT = 9;
        EXT_GOSSIP_QUERIES_REQ = 10;
        EXT_GOSSIP_QUERIES_OPT = 11;
        STATIC_REMOTE_KEY_REQ = 12;
        STATIC_REMOTE_KEY_OPT = 13;
        PAYMENT_ADDR_REQ = 14;
        PAYMENT_ADDR_OPT = 15;
        MPP_REQ = 16;
        MPP_OPT = 17;
}

message Feature {
        string name = 2 [json_name = "name"];
        bool is_required = 3 [json_name = "is_required"];
        bool is_known = 4 [json_name = "is_known"];
}

message FeeReportRequest {}
message ChannelFeeReport {
    /// The channel that this fee report belongs to.
    string chan_point = 1 [json_name = "channel_point"];

    /// The base fee charged regardless of the number of milli-satoshis sent.
    int64 base_fee_msat = 2 [json_name = "base_fee_msat"];

    /// The amount charged per milli-satoshis transferred expressed in millionths of a satoshi.
    int64 fee_per_mil = 3 [json_name = "fee_per_mil"];

    /// The effective fee rate in milli-satoshis. Computed by dividing the fee_per_mil value by 1 million.
    double fee_rate = 4 [json_name = "fee_rate"];
}
message FeeReportResponse {
    /// An array of channel fee reports which describes the current fee schedule for each channel.
    repeated ChannelFeeReport channel_fees = 1 [json_name = "channel_fees"];

    /// The total amount of fee revenue (in satoshis) the switch has collected over the past 24 hrs.
    uint64 day_fee_sum = 2 [json_name = "day_fee_sum"];

    /// The total amount of fee revenue (in satoshis) the switch has collected over the past 1 week.
    uint64 week_fee_sum = 3 [json_name = "week_fee_sum"];

    /// The total amount of fee revenue (in satoshis) the switch has collected over the past 1 month.
    uint64 month_fee_sum = 4 [json_name = "month_fee_sum"];
}

message PolicyUpdateRequest {
    oneof scope {
        /// If set, then this update applies to all currently active channels.
        bool global = 1 [json_name = "global"] ;

        /// If set, this update will target a specific channel.
        ChannelPoint chan_point = 2 [json_name = "chan_point"];
    }

    /// The base fee charged regardless of the number of milli-satoshis sent.
    int64 base_fee_msat = 3 [json_name = "base_fee_msat"];

    /// The effective fee rate in milli-satoshis. The precision of this value goes up to 6 decimal places, so 1e-6.
    double fee_rate = 4 [json_name = "fee_rate"];

    /// The required timelock delta for HTLCs forwarded over the channel.
    uint32 time_lock_delta = 5 [json_name = "time_lock_delta"];

    /// If set, the maximum HTLC size in milli-satoshis. If unset, the maximum HTLC will be unchanged.
    uint64 max_htlc_msat = 6 [json_name = "max_htlc_msat"];

    /// The minimum HTLC size in milli-satoshis. Only applied if min_htlc_msat_specified is true.
    uint64 min_htlc_msat = 7 [json_name = "min_htlc_msat"];

    /// If true, min_htlc_msat is applied.
    bool min_htlc_msat_specified = 8 [json_name = "set_min_htlc_msat"];
}
message PolicyUpdateResponse {
}

message ForwardingHistoryRequest {
    /// Start time is the starting point of the forwarding history request. All records beyond this point will be included, respecting the end time, and the index offset.
    uint64 start_time = 1 [json_name = "start_time"];

    /// End time is the end point of the forwarding history request. The response will carry at most 50k records between the start time and the end time. The index offset can be used to implement pagination.
    uint64 end_time = 2 [json_name = "end_time"];

    /// Index offset is the offset in the time series to start at. As each response can only contain 50k records, callers can use this to skip around within a packed time series.
    uint32 index_offset = 3 [json_name = "index_offset"];

    /// The max number of events to return in the response to this query.
    uint32 num_max_events = 4 [json_name = "num_max_events"];
}
message ForwardingEvent {
    /// Timestamp is the time (unix epoch offset) that this circuit was completed.
    uint64 timestamp = 1 [json_name = "timestamp"];

    /// The incoming channel ID that carried the HTLC that created the circuit.
    uint64 chan_id_in = 2 [json_name = "chan_id_in", jstype = JS_STRING];

    /// The outgoing channel ID that carried the preimage that completed the circuit.
    uint64 chan_id_out = 4 [json_name = "chan_id_out", jstype = JS_STRING];

    /// The total amount (in satoshis) of the incoming HTLC that created half the circuit.
    uint64 amt_in = 5 [json_name = "amt_in"];

    /// The total amount (in satoshis) of the outgoing HTLC that created the second half of the circuit.
    uint64 amt_out = 6 [json_name = "amt_out"];

    /// The total fee (in satoshis) that this payment circuit carried.
    uint64 fee = 7 [json_name = "fee"];

    /// The total fee (in milli-satoshis) that this payment circuit carried.
    uint64 fee_msat = 8 [json_name = "fee_msat"];

    /// The total amount (in milli-satoshis) of the incoming HTLC that created half the circuit.
    uint64 amt_in_msat = 9 [json_name = "amt_in_msat"];

    /// The total amount (in milli-satoshis) of the outgoing HTLC that created the second half of the circuit.
    uint64 amt_out_msat = 10 [json_name = "amt_out_msat"];


    // TODO(roasbeef): add settlement latency?
    //  * use FPE on the chan id?
    //  * also list failures?
}
message ForwardingHistoryResponse {
   /// A list of forwarding events from the time slice of the time series specified in the request.
   repeated ForwardingEvent forwarding_events = 1 [json_name = "forwarding_events"];

   /// The index of the last time in the set of returned forwarding events. Can be used to seek further, pagination style.
   uint32 last_offset_index = 2 [json_name = "last_offset_index"];
}

message ExportChannelBackupRequest {
    /// The target channel point to obtain a back up for.
    ChannelPoint chan_point = 1;
}

message ChannelBackup {
    /**
    Identifies the channel that this backup belongs to.
    */
    ChannelPoint chan_point = 1 [ json_name = "chan_point" ];

    /**
    Is an encrypted single-chan backup. this can be passed to
    RestoreChannelBackups, or the WalletUnlocker Init and Unlock methods in
    order to trigger the recovery protocol. When using REST, this field must be
    encoded as base64.
    */
    bytes chan_backup = 2 [ json_name = "chan_backup" ];
}

message MultiChanBackup {
    /**
    Is the set of all channels that are included in this multi-channel backup.
    */
    repeated ChannelPoint chan_points = 1 [ json_name = "chan_points" ];

    /**
    A single encrypted blob containing all the static channel backups of the
    channel listed above. This can be stored as a single file or blob, and
    safely be replaced with any prior/future versions. When using REST, this
    field must be encoded as base64.
    */
    bytes multi_chan_backup = 2 [ json_name = "multi_chan_backup" ];
}

message ChanBackupExportRequest {}
message ChanBackupSnapshot  {
    /**
    The set of new channels that have been added since the last channel backup
    snapshot was requested.
    */
    ChannelBackups single_chan_backups = 1 [ json_name = "single_chan_backups" ];

    /**
    A multi-channel backup that covers all open channels currently known to
    lnd.
    */
    MultiChanBackup multi_chan_backup  = 2 [ json_name = "multi_chan_backup" ];
}

message ChannelBackups {
    /**
    A set of single-chan static channel backups.
    */
    repeated ChannelBackup chan_backups = 1 [ json_name = "chan_backups" ];
}

message RestoreChanBackupRequest {
    oneof backup {
        /**
        The channels to restore as a list of channel/backup pairs.
        */
        ChannelBackups chan_backups = 1 [ json_name = "chan_backups" ];

        /**
        The channels to restore in the packed multi backup format. When using
        REST, this field must be encoded as base64.
        */
        bytes multi_chan_backup = 2 [ json_name = "multi_chan_backup" ];
    }
}
message RestoreBackupResponse {}

message ChannelBackupSubscription {}

message VerifyChanBackupResponse {
}

message MacaroonPermission {
    /// The entity a permission grants access to.
    string entity = 1 [json_name = "entity"];

    /// The action that is granted.
    string action = 2 [json_name = "action"];
}
message BakeMacaroonRequest {
    /// The list of permissions the new macaroon should grant.
    repeated MacaroonPermission permissions = 1 [json_name = "permissions"];
}
message BakeMacaroonResponse {
    /// The hex encoded macaroon, serialized in binary format.
    string macaroon = 1 [json_name = "macaroon"];
}
generated by cgit v1.2.3 (git 2.51.0) at 2026-10-19 05:45:17 +0000