Polymarket USD

import {
  createWalletClient,
  createPublicClient,
  http,
  parseAbi,
  parseUnits,
} from "viem";
import { polygon } from "viem/chains";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY as `0x${string}`);
const walletClient = createWalletClient({
  account,
  chain: polygon,
  transport: http(),
});
const publicClient = createPublicClient({ chain: polygon, transport: http() });

const ONRAMP = "0x93070a847efEf7F70739046A929D47a521F5B8ee" as const;
const USDCE = "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174" as const; // USDC.e on Polygon

const amount = parseUnits("100", 6); // 100 USDC.e

// 1. Approve the Onramp to spend your USDC.e
const approveHash = await walletClient.writeContract({
  address: USDCE,
  abi: parseAbi([
    "function approve(address spender, uint256 amount) returns (bool)",
  ]),
  functionName: "approve",
  args: [ONRAMP, amount],
});
await publicClient.waitForTransactionReceipt({ hash: approveHash });

// 2. Wrap USDC.e → pUSD
const wrapHash = await walletClient.writeContract({
  address: ONRAMP,
  abi: parseAbi([
    "function wrap(address _asset, address _to, uint256 _amount)",
  ]),
  functionName: "wrap",
  args: [USDCE, account.address, amount],
});
await publicClient.waitForTransactionReceipt({ hash: wrapHash });

from web3 import Web3

ONRAMP = "0x93070a847efEf7F70739046A929D47a521F5B8ee"
USDCE = "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174"

amount = 100 * 10**6  # 100 USDC.e

# 1. Approve the Onramp to spend your USDC.e
usdce = w3.eth.contract(address=USDCE, abi=[{
    "name": "approve", "type": "function",
    "inputs": [{"name": "spender", "type": "address"},
               {"name": "amount", "type": "uint256"}],
    "outputs": [{"type": "bool"}],
}])
usdce.functions.approve(ONRAMP, amount).transact({"from": address})

# 2. Wrap USDC.e → pUSD
onramp = w3.eth.contract(address=ONRAMP, abi=[{
    "name": "wrap", "type": "function",
    "inputs": [{"name": "_asset", "type": "address"},
               {"name": "_to", "type": "address"},
               {"name": "_amount", "type": "uint256"}],
    "outputs": [],
}])
onramp.functions.wrap(USDCE, address, amount).transact({"from": address})