using .map multiple times

functions.js

const getDomainName = (item) => item.details.name;
const getProtocol = (item) => (item.details.valid ? 'https' : 'http');
const getUrl = (item) => `${getProtocol(item)}://${getDomainName(item)}`;
// TODO: (temporary) Adding callback=true because server side redirection needs this parameter
const addCallbackParameter = (url) => `${url}?callback=true`;

const urlList = domainList.map(getUrl).map(addCallbackParameter);