PolyUSD Guide

import { ethers } from "ethers";

const provider = new ethers.JsonRpcProvider("YOUR_RPC_URL");
const wallet = new ethers.Wallet("YOUR_PRIVATE_KEY", provider);

const USDC_E = "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174";
const ONRAMP = "0x93070a847efef7f70739046a929d47a521f5b8ee";

// 1. Approve Onramp for USDC.e
const usdc = new ethers.Contract(USDC_E, [
  "function approve(address,uint256) returns (bool)",
  "function balanceOf(address) view returns (uint256)"
], wallet);

await (await usdc.approve(ONRAMP, ethers.MaxUint256)).wait();

// 2. Wrap USDC.e → PolyUSD
const amount = await usdc.balanceOf(wallet.address);
const wrapData = new ethers.Interface(["function wrap(address,address,uint256)"])
  .encodeFunctionData("wrap", [USDC_E, wallet.address, amount]);

const tx = await wallet.sendTransaction({ to: ONRAMP, data: wrapData, gasLimit: 300000 });
await tx.wait();

console.log("Wrapped", (Number(amount) / 1e6).toFixed(2), "USDC.e → PolyUSD");

// Wrap 1 USDC.e → PolyUSD
let tx_hash = trader.wrap_to_polyusd(1_000_000).await?;

// Check balance
let balance = trader.get_polyusd_balance().await?;

// polynode-sdk >= 0.9.1
import { PolyNodeTrader } from 'polynode-sdk';

const trader = new PolyNodeTrader({
  polynodeKey: 'pn_live_...',
  exchangeVersion: 'v2',
  builderCredentials: { key: '...', secret: '...', passphrase: '...' },
});
await trader.ensureReady('0xYOUR_EOA_PRIVATE_KEY');

// Wrap 10 USDC.e → pUSD (gasless via Safe+relayer)
const wrapTx = await trader.wrapToPolyUsd(10_000_000n);

// Unwrap 5 pUSD → USDC.e (gasless via Safe+relayer)
const unwrapTx = await trader.unwrapFromPolyUsd(5_000_000n);