lnd-lib

Installation

Install the package via npm:

npm install install lnd-lib --save 

Introduction

Draws heavily on https://github.com/lightningnetwork/lnd/blob/master/docs/grpc/javascript.md, and https://api.lightning.community/.

Usage

const lndLib = require('lnd-lib')
const Lightning = new lndLib.Lightning({certPath, macaroonPath, lndAddress, protoPath})

• [certPath] Optional. Path to certificate. Defaults to ~/.lnd/tls.cert on Linux and ~/Library/Application Support/Lnd/tls.cert on Mac.

• [macaroonPath] Optional. Macaroon Path. Defaults to ~/.lnd/admin.macaroon on Linux and ~/Library/Application Support/admin.macaroon on Mac.

• [lndAddress] Optional. Lnd address. Defaults to localhost:10009.

• [protoPath] Optional. Path to rpc.proto. Defaults to ./rpc.proto (included in this repo).

Methods

initialize

Fetches certificate, rpc.proto etc. and creates sets up an RPC connection to LND.

Lightning.initialize().then((resp)=>{
 	.... 
})

connect

Connects to another LND peer.

Lightning.connect({addr, pubKey, host, perm}).then((resp)=>{
 	.... 
})

• [addr] Optional. TODO..

  (need to either have [addr] or [pubKey] and [host])

• [pubKey] Optional. TODO..

• [host] Optional. TODO..

• [perm] Optional. TODO..

getInfo

Returns basic information related to the Lightning node.

Lightning.getInfo().then((resp)=>{
    .... 
})

walletBalance

Returns the wallet's balance (total utxos, confirmed and unconfirmed).

Lightning.walletBalance().then((resp)=>{
 	.... 
})

newAddress

Generates a new wallet address.

Lightning.newAddress(addressType).then((resp)=>{
 	.... 
})

[addressType]:

Either:

• Lightning.addressType.p2wkh or

• Lightning.addressType.np2wkh.

• Defaults to Lightning.addressType.p2wkh

listPeers

Returns a list of all connected peers.

Lightning.listPeers().then((resp)=>{
    .... 
})

openChannel

Attempts to open a channel to an existing peer.

Lightning.openChannel(
  {
    nodePubkey,
    localFundingAmount, 
    pushSatoshis, 
    targetConf, 
    satoshisPerByte, 
    minHtlcMsat, 
    _private, 
    minHtlcMsat, 
    remoteCsvDelay
  },
  statusCallback
).then((resp)=>{
 	.... 
})

• [nodePubkey] TODO

• [localFundingAmount] TODO

• [pushSatoshis] Optional. TODO

• [targetConf] Optional. TODO

• [satoshisPerByte] Optional. TODO

• [_private] Optional. TODO

• [minHtlcMsat] Optional. TODO

• [remoteCsvDelay] Optional. TODO

• [statusCallback] TODO

channelBalance

Returns the total channel balance for all open channels.

Lightning.channelBalance().then((resp)=>{
 	.... 
})

listChannels

Returns a list of all open channels.

Lightning.listChannels().then((resp)=>{
 	.... 
})

addInvoice

Adds a new invoice, expressing intent for a future payment.

Lightning.addInvoice({amt}).then((resp)=>{
 	.... 
})

• [amt] TODO

decodePayReq

Decodes a payment request.

Lightning.decodePayReq({payReq}).then((resp)=>{
 	.... 
})

• [payReq] TODO

sendPayment

Sends a payment over Lightning.

Lightning.sendPayment({payReq}).then((resp)=>{
 	.... 
})

• [payReq] TODO

getChanInfo

Returns the latest authenticated state for a particular channel.

Lightning.getChanInfo({chanId}).then((resp)=>{
 	.... 
})

• [chanId] TODO

closeChannel

Attempts to close an existing channel.

Lightning.closeChannel(
 {
    chanId, 
    channelPoint, 
    force, 
    targetConf, 
    satoshisPerByte
  }
).then((resp)=>{
 	.... 
})

• [chanId] TODO

• [channelPoint] TODO

• [force] TODO

• [targetConf] TODO

• [satoshisPerByte] TODO

disconnect

Disconnects from an existing peer.

Lightning.disconnect({pubKey}).then((resp)=>{
 	.... 
})

• [pubKey] TODO

TODO:

Implement remaining lightning functionality.