Sign order

CoW Protocol / Orders

Part 1/ Orders/Sign order

import type { Web3Provider } from '@ethersproject/providers'

import { OrderSigningUtils, UnsignedOrder, OrderKind } from '@cowprotocol/cow-sdk'

export async function run(provider: Web3Provider): Promise<unknown> {

  const accounts = await provider.listAccounts()

  const account = accounts[0]

  const chainId = +(await provider.send('eth_chainId', []))

  const order: UnsignedOrder = {

    sellToken: '0x6b175474e89094c44da98b954eedeac495271d0f',

    buyToken: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48',

    receiver: account,

    sellAmount: '2',

    buyAmount: '1',

    validTo: Math.round((Date.now() + 200_000) / 1000),

    appData: '0x',

    feeAmount: '0',

    kind: OrderKind.SELL,

    partiallyFillable: false,

  }

  const signer = provider.getSigner()

  return OrderSigningUtils.signOrder(order, chainId, signer)

}