simulateQuote

import { getRawQuotes, simulateQuote } from "@spandex/core";
import { config, client } from "./config.js";
 
const swap = {
  chainId: 8453,
  inputToken: "0x4200000000000000000000000000000000000006",
  outputToken: "0xd9AAEC86B65D86f6A7B5B1b0c42FFA531710b6CA",
  mode: "exactIn",
  inputAmount: 1_000_000_000_000_000_000n,
  slippageBps: 50,
  swapperAccount: "0x1234567890abcdef1234567890abcdef12345678",
};
 
const quotes = await getRawQuotes({
  config,
  swap,
});
 
const first = quotes.find((quote) => quote.success);
if (!first) {
  throw new Error("No successful quotes to simulate");
}
 
const simulated = await simulateQuote({
  quote: first,
  swap,
  client,
  simulationOptions: {
    stateOverrides: [
      {
        address: swap.inputToken,
        stateDiff: [{ slot: balanceSlot, value: simulatedBalance }],
      },
    ],
  },
});
 
if (simulated.success && simulated.simulation.success) {
  console.log(simulated.simulation.outputAmount);
}