orca.ts

import Decimal from "decimal.js";
import { Connection, Keypair } from "@solana/web3.js";
import { getOrca, OrcaFarmConfig, OrcaPoolConfig } from "@orca-so/sdk";

const connection = new Connection("https://api.mainnet-beta.solana.com", "singleGossip");
const orca = getOrca(connection);

const pool = orca.getPool(OrcaPoolConfig.SOL_mSOL);
const solToken = pool.getTokenA();
const amount = new Decimal(0.1);
const quote = await pool.getQuote(solToken, amount);

// Compare expectedOutput against conversion rate from mSOL to SOL when unstaking
const expectedOutput = quote.getExpectedOutputAmount();