Fetching a Quote/Route

import { getRoutes } from '@lifi/sdk';

const routesRequest: RoutesRequest = {
  fromChainId: 42161, // Arbitrum
  toChainId: 10, // Optimism
  fromTokenAddress: '0xaf88d065e77c8cC2239327C5EDb3A432268e5831', // USDC on Arbitrum
  toTokenAddress: '0xDA10009cBd5D07dd0CeCc66161FC93D7c9000da1', // DAI on Optimism
  fromAmount: '10000000', // 10 USDC
};

const result = await getRoutes(routesRequest);
const routes = result.routes;

const getQuote = async (fromChain, toChain, fromToken, toToken, fromAmount, fromAddress) => {
    const result = await axios.get('https://li.quest/v1/quote', {
        params: {
            fromChain,
            toChain,
            fromToken,
            toToken,
            fromAmount,
            fromAddress,
        }
    });
    return result.data;
}

const fromChain = 42161;
const fromToken = 'USDC';
const toChain = 10;
const toToken = 'USDC';
const fromAmount = '1000000';
const fromAddress = YOUR_WALLET_ADDRESS;

const quote = await getQuote(fromChain, toChain, fromToken, toToken, fromAmount, fromAddress);