slp_liquidity.js

import Web3 from 'web3';
import ERC20ContractABI from './src/abi/erc20.js';
import UniswapV2ABI from './src/abi/uniswap_v2.js';

function basicResponse(err, res) {
    return res;
}

function convertDecimals(amount, decimals) {
    return amount * Math.pow(10, -1 * decimals);
}

const ronin = new Web3(new Web3.providers.HttpProvider('https://api.roninchain.com/rpc'));

async function getLiquidity(lpContract) {
    const blockNumber = await ronin.eth.getBlockNumber(basicResponse);

    return Promise.all([
        lpContract.methods.token0().call(blockNumber, basicResponse),
        lpContract.methods.token1().call(blockNumber, basicResponse),
    ]).then(([token0Addr, token1Addr]) => {
        const token0 = new ronin.eth.Contract(ERC20ContractABI, token0Addr);
        const token1 = new ronin.eth.Contract(ERC20ContractABI, token1Addr);
        return Promise.all([
            lpContract.methods.getReserves().call(blockNumber, basicResponse),
            token0.methods.decimals().call(blockNumber, basicResponse),
            token0.methods.symbol().call(blockNumber, basicResponse),
            token0.methods.totalSupply().call(blockNumber, basicResponse),
            token1.methods.decimals().call(blockNumber, basicResponse),
            token1.methods.symbol().call(blockNumber, basicResponse),
            token1.methods.totalSupply().call(blockNumber, basicResponse),
        ]);
    }).then(([reserves, token0Decimals, token0Symbol, token0Supply, token1Decimals, token1Symbol, token1Supply]) => {
        return [
            {symbol: token0Symbol, liquidity: convertDecimals(reserves[0], token0Decimals), totalSupply: convertDecimals(token0Supply, token0Decimals)},
            {symbol: token1Symbol, liquidity: convertDecimals(reserves[1], token1Decimals), totalSupply: convertDecimals(token1Supply, token1Decimals)},
        ];
    });
}

const slpWethPool = new ronin.eth.Contract(UniswapV2ABI, '0x306a28279d04a47468ed83d55088d0dcd1369294');
const slpLiquidity = await getLiquidity(slpWethPool);
console.log(slpLiquidity);