GOAT RPC Node
Bitcoin Layer 2

const { ethers } = require('ethers');

const provider = new ethers.JsonRpcProvider('https://rpc.crypto-chief.com/goat/YOUR_API_KEY');

// Verify connection to GOAT Bitcoin L2
const network = await provider.getNetwork();
console.log('Chain ID:', network.chainId); // 48815
console.log('Network:', network.name); // goat

// Get GOAT balance
const address = '0x...';
const balance = await provider.getBalance(address);
console.log('GOAT Balance:', ethers.formatEther(balance));

// Bitcoin-secured DeFi protocol
const BTC_LENDING_PROTOCOL = '0x...';
const lendingABI = [
  'function depositBTC(uint256 amount) external',
  'function borrowAgainstBTC(uint256 collateralAmount, uint256 borrowAmount) external',
  'function getApy() view returns (uint256)',
  'function getUserPosition(address user) view returns (uint256 deposited, uint256 borrowed)'
];

const lending = new ethers.Contract(BTC_LENDING_PROTOCOL, lendingABI, wallet);

// Deposit BTC to earn yield
const depositAmount = ethers.parseEther('1'); // 1 BTC
const depositTx = await lending.depositBTC(depositAmount);
await depositTx.wait();

console.log('BTC deposited in Bitcoin-secured lending protocol!');
console.log('Earning yield on Bitcoin for the first time!');

// Query current APY
const apy = await lending.getApy();
console.log('Current APY:', ethers.formatUnits(apy, 2), '%');

// Check position
const position = await lending.getUserPosition(address);
console.log('Deposited:', ethers.formatEther(position.deposited), 'BTC');
console.log('Borrowed:', ethers.formatEther(position.borrowed), 'BTC');
console.log('All secured by Bitcoin L1!');

from web3 import Web3

w3 = Web3(Web3.HTTPProvider('https://rpc.crypto-chief.com/goat/YOUR_API_KEY'))

print('Connected to GOAT Bitcoin L2:', w3.is_connected())
print('Chain ID:', w3.eth.chain_id)  # 48815
print('Latest block:', w3.eth.block_number)

# Bitcoin DEX contract
BTC_DEX_ADDRESS = '0x...'
btc_dex_abi = [
    {
        'name': 'swapBTCForToken',
        'type': 'function',
        'inputs': [
            {'name': 'amountIn', 'type': 'uint256'},
            {'name': 'tokenOut', 'type': 'address'},
            {'name': 'minAmountOut', 'type': 'uint256'}
        ],
        'outputs': [{'name': 'amountOut', 'type': 'uint256'}]
    },
    {
        'name': 'addLiquidity',
        'type': 'function',
        'inputs': [
            {'name': 'btcAmount', 'type': 'uint256'},
            {'name': 'tokenAmount', 'type': 'uint256'},
            {'name': 'tokenAddress', 'type': 'address'}
        ],
        'outputs': [{'name': 'liquidity', 'type': 'uint256'}]
    }
]

btc_dex = w3.eth.contract(
    address=BTC_DEX_ADDRESS,
    abi=btc_dex_abi
)

# Swap BTC for token on Bitcoin L2 DEX
tx_hash = btc_dex.functions.swapBTCForToken(
    w3.to_wei(0.5, 'ether'),  # 0.5 BTC
    token_address,
    min_amount_out
).transact({'from': user_address})

receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
print('BTC swapped on Bitcoin-native DEX!')
print('No bridging to other chains required!')

# Provide BTC liquidity
liquidity_tx = btc_dex.functions.addLiquidity(
    w3.to_wei(2, 'ether'),   # 2 BTC
    token_amount,
    token_address
).transact({'from': user_address})

w3.eth.wait_for_transaction_receipt(liquidity_tx)
print('Earning fees on BTC liquidity provision!')
print('Bitcoin DeFi is here!')

const { ethers } = require('ethers');
const provider = new ethers.WebSocketProvider('wss://rpc.crypto-chief.com/goat/ws/YOUR_API_KEY');

// Monitor Bitcoin L2 blocks
provider.on('block', async (blockNumber) => {
  const block = await provider.getBlock(blockNumber);
  console.log(`\n=== GOAT Bitcoin L2 Block ${blockNumber} ===`);
  console.log('Transactions:', block.transactions.length);
  console.log('Secured by Bitcoin proof-of-work');
});

// Monitor BTC lending events
const BTC_LENDING = '0x...';
const lendingFilter = {
  address: BTC_LENDING,
  topics: [ethers.id('BTCDeposited(address,uint256)')]
};

provider.on(lendingFilter, (log) => {
  const decoded = ethers.AbiCoder.defaultAbiCoder().decode(
    ['address', 'uint256'],
    log.data
  );
  const amount = ethers.formatEther(decoded[1]);
  console.log('\n=== BTC Lending Deposit ===');
  console.log('User:', decoded[0]);
  console.log('Amount:', amount, 'BTC');
  console.log('Bitcoin earning yield on Layer 2!');
});

// Monitor Bitcoin DEX swaps
const BTC_DEX = '0x...';
const swapFilter = {
  address: BTC_DEX,
  topics: [ethers.id('BTCSwapped(address,uint256,uint256)')]
};

provider.on(swapFilter, (log) => {
  console.log('\n=== Bitcoin DEX Swap ===');
  console.log('Native BTC DeFi transaction!');
  console.log('No cross-chain bridges needed!');
});

console.log('Monitoring GOAT - Bitcoin Layer 2 DeFi...');