normalize request url get last pathname idx, qs, command

normalizeRequest.js

const url = require('url');
const path = require('path');

module.exports = function normalizeRequest(url) {
 let idx;
 const parsed = url.parse(uri, true);
 const pathname = path.join(parsed.pathname, '/');

 pathname = pathname.slice(1, pathname.length - 1);
 idx = pathname.lastIndexOf('/');
 idx = (idx < 0 ? pathname.length : idx);

 return {
  command: pathname.slice(0, idx).toLowerCase(),
  id: pathname.slice(idx + 1),
  query: parsed.query
 };
}