LndHub

Wrapper for Lightning Network Daemon (lnd). It provides separate accounts with minimum trust for end users.

INSTALLATION

You can use those guides or follow instructions below:

git clone git@github.com:BlueWallet/LndHub.git
cd LndHub
npm i

Install bitcoind, lnd, and redis. Edit LndHub's config.js to set it up correctly. Copy the files admin.macaroon (for Bitcoin mainnet, usually stored in ~/.lnd/data/chain/bitcoin/mainnet/admin.macaroon) and tls.cert (usually stored in ~/.lnd/tls.cert) into the root folder of LndHub.

LndHub expects LND's wallet to be unlocked, if not — it will attempt to unlock it with the password stored in config.lnd.password. Don't forget to configure disk-persistence for redis (e.g., you may want to set appendonly to yes in redis.conf (see http://redis.io/topics/persistence for more information).

If you have no bitcoind instance, for example if you use neutrino, or you have no bitcoind wallet, for example if you use LND for wallet managment, you can remove the bitcoind settings from config.js. Please note that this feature is limited to Bitcoin, so you can't use it if you use any other cryptocurrency with LND (e.g., Litecoin).

Deploy to Heroku

Add config vars :

CONFIG : json serialized config object
MACAROON: hex-encoded admin.macaroon
TLSCERT: hex-encoded tls.cert

Run in docker

LndHub is available on Docker Hub as bluewalletorganization/lndhub. Please note that this requires a separate instance of redis and LND and optionally, bitcoind. You can also view Umbrel's implementation using docker-compose here.

Reference client implementation

Can be used in ReactNative or Nodejs environment

https://github.com/BlueWallet/BlueWallet/blob/master/class/wallets/lightning-custodian-wallet.js

Tests

Acceptance tests are in https://github.com/BlueWallet/BlueWallet/blob/master/tests/integration/lightning-custodian-wallet.test.js

Responsible disclosure

Found critical bugs/vulnerabilities? Please email them to bluewallet@bluewallet.io Thanks!