galderz/lnq

Lightning Network Quarkus

A lightning network node implementation with Lightning Dev Kit and Quarkus.

Testing

This section explains how to test things, assuming that you've already done the first time setup:

Start bitcoind in regtest mode.

bitcoind -regtest -daemon

Verify that the blockchain is in the tip, as per the initial setup:

bitcoin-cli getblockchaininfo

Test 1: lnq to lnrod connectivity

Start a lnrod node:

lnrod --regtest --datadir ./data2 --rpcport 8802 --lnport 9902

Start lnq in quarkus dev mode:

./mvnw clean quarkus:dev

Check lnq can establish a peer connection to lnrod:

make peers

First Time Setup

Build [bitcoin][https://github.com/bitcoin/bitcoin] with wallet support. See macOS step-by-step guide.

Build [lnrod][https://gitlab.com/lightning-signer/lnrod] having installed Rust via rustup:

git clone git@gitlab.com:lightning-signer/lnrod.git
cd lnrod
cargo build

Add bitcoind configuration to your system's bitcoin.conf. In linux, this is located in ~/.bitcoin/bitcoin.conf, but on macOS, this is in ~/Library/Application Support/Bitcoin/bitcoin.conf. Though you can instruct bitcoin daemon and bitcoin cli to use a different data directory, things are smoother if you stick to your environment's default location:

rpcuser=user
rpcpassword=pass
fallbackfee=0.0000001

Start bitcoind in regtest mode:

bitcoind -regtest -daemon

Create wallet, unload and reload with autoload:

bitcoin-cli --regtest createwallet default
bitcoin-cli --regtest unloadwallet default
bitcoin-cli --regtest loadwallet default true

Mine initial blocks:

a_mine=`bitcoin-cli -regtest getnewaddress` && echo $a_mine
bitcoin-cli -regtest generatetoaddress 101 $a_mine