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Btc-lsd-relay service is an off-chain service, it mainly acts as a pool. It receives BTCs from stakers and delegate them to Babylon. In the meantime it operates StakeManager contract to store states, mint LSTs, burn LST and update rate etc.

Install Build Tools

Install make, gcc and git

sudo apt update
sudo apt install -y make gcc git build-essential

Install go by following the official docs. Remember to set your $PATH environment variable, for example:

cd $HOME
wget -O go1.22.0.linux-amd64.tar.gz https://go.dev/dl/go1.22.0.linux-amd64.tar.gz
rm -rf /usr/local/go && tar -C /usr/local -xzf go1.22.0.linux-amd64.tar.gz && rm go1.22.0.linux-amd64.tar.gz
echo 'export GOROOT=/usr/local/go' >> $HOME/.bashrc
echo 'export GOPATH=$HOME/go' >> $HOME/.bashrc
echo 'export GO111MODULE=on' >> $HOME/.bashrc
echo 'export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin' >> $HOME/.bashrc && . $HOME/.bashrc
go version

Install relay service

$ git clone https://github.com/stafiprotocol/babylon-lsd-relay.git
$ cd babylon-lsd-relay
$ make install

Create config file

$ cp config.example.toml config.toml

Config btc relay service

Update config (config.toml) by your favorite editor according to Relay Config

bbnEndpoint = "https://rpc-falcron.pion-1.ntrn.tech:443"
bbnKeyName = "key1"
bbnGasPrice = "0.05untrn"
bbnKeyringPath = "/home/ubuntu/.stafi/btc-lsd-relay/keys"
 
btcEndpoint = "http://127.0.0.1:38332"
btcRpcUser = "btcstaking"
btcRpcPass = "btcstaking"
btcWalletName = "btcstaking"
btcWalletPass = "btcstaking"
btcNetwork = "signet"
btcStartBlock = 198617
btcMinFeeRate = 1
btcMaxFeeRate = 20
 
stakingApiEndpoint = "https://staking-api.testnet.babylonchain.io"
 
stakeMangerAddress = "neutron1g4crwpzr5z8qhgl40cdjlq83nkeazvhgv7zr9vs5nfy4kk0ep0cssskfjq"

Add or Import account

You can import an exist account TBD

or you can create a new account TBD

Start relay services

$ babylon-lsd-relay start \
    --home /home/ubuntu/.stafi/btc-lsd-relay \
    --config ./config.toml \
    --log_level info

Config

config	description	example value
smart contract section
bbnEndpoint	babylon smart contract endpoint	https://rpc-falcron.pion-1.ntrn.tech:443
bbnKeyName	account to send tx to contract	btcstaking(CHANGEME)
bbnGasPrice	the price per unit of gas	0.05atom
bbnKeyringPath	the path of the keyring file	/home/ubuntu/.stafi/btc-lsd-relay/keys
btc section
btcEndpoint	bitcoin REST RPC endpoint	http://127.0.0.1:38332 (signet) http://127.0.0.1:8332 (mainnet)
btcRpcUser	bitcoin rpc user	btcstaking(CHANGEME)
btcRpcPass	bitcoin rpc password	btcstaking(CHANGEME)
btcWalletName	bitcoin wallet name	btcstaking(CHANGEME)
btcWalletPass	bitcoin wallet password	btcstaking(CHANGEME)
btcNetwork	bitcoin network	signet,mainnet
btcStartBlock	from which block the relay service start monitoring staking transactions	198617
btcMinFeeRate	the min fee rate used if the estimated fee is lower than this, the unit of this is (1000sats)	1
btcMaxFeeRate	the max fee rate used if the estimated fee is higher than this, the unit of this is (1000sats)	20
staking section
stakingApiEndpoint	babylon staking api endpoint	https://staking-api.testnet.babylonchain.io
stakeMangerAddress	stake manager contract address

Contract Get Started