npm install @sweepr/sdk viem

import { Sweepr } from '@sweepr/sdk';

const sweepr = new Sweepr({
  apiKey: process.env.SWEEPR_API_KEY!,
  version: 'v2',
});

const { data: status } = await fetch('https://dev-api.sweepr.co/sweepr/v2/status')
  .then((res) => res.json());

const readyChains = status.chains.filter((chain) => chain.readyForV5Builds);

const build = await sweepr.sweep.build({
  chain: 'base',
  wallet: userAddress,
  tokens: [
    {
      mint: '0xTokenAddress',
      amount: '1000000000000000000',
      symbol: 'TOKEN',
      decimals: 18,
    },
  ],
  outputMint: '0xOutputToken',
  slippageBps: 100,
});

const idempotencyKey = request.id; // reuse the same key for retries
const build = await sweepr.sweep.build(request, idempotencyKey);

const validFeeAuth = await sweepr.evm.verifyFeeAuthorization(build);

if (!validFeeAuth) {
  throw new Error('Invalid Sweepr fee authorization');
}

const validFeeAuth = await sweepr.evm.verifyFeeAuthorization(build, {
  expectedPartnerRecipient: '0xPartnerPayoutWallet',
});

await sweepr.evm.approvePermit2(walletClient, publicClient, {
  owner: userAddress,
  token: inputToken,
  amount: inputAmount,
});

const allowance = await sweepr.evm.checkPermit2Allowance(publicClient, {
  owner: userAddress,
  token: inputToken,
  amount: inputAmount,
});

const permitSignature = await sweepr.evm.signPermit2(walletClient, build);

const txHash = await sweepr.evm.sendSweep(walletClient, build, permitSignature);

const tx = sweepr.evm.finalizeV2Transaction(build, permitSignature);

await sweepr.sweep.confirm(build.sweepId, txHash);

const status = await sweepr.sweep.status(build.sweepId);