import {promisify} from '@0xproject/utils'; import {Web3Wrapper} from '@0xproject/web3-wrapper'; import * as _ from 'lodash'; import * as Web3 from 'web3'; export const network = { async getNetworkIdIfExistsAsync(port: number): Promise { const url = `http://localhost:${port}`; const web3Provider = new Web3.providers.HttpProvider(url); const web3Wrapper = new Web3Wrapper(web3Provider); const networkId = web3Wrapper.getNetworkIdAsync(); return networkId; }, };