code: function parse(str) {
    //unix socket
    if(str.charAt(0) === '/') {
      var config = str.split(' ');
      return { host: config[0], database: config[1] };
    }
  
    // url parse expects spaces encoded as %20
    var result = url.parse(/ |%[^a-f0-9]|%[a-f0-9][^a-f0-9]/i.test(str) ? encodeURI(str).replace(/\%25(\d\d)/g, "%$1") : str, true);
    var config = result.query;
    for (var k in config) {
      if (Array.isArray(config[k])) {
        config[k] = config[k][config[k].length-1];
      }
    }
  
    config.port = result.port;
    if(result.protocol == 'socket:') {
      config.host = decodeURI(result.pathname);
      config.database = result.query.db;
      config.client_encoding = result.query.encoding;
      return config;
    }
    config.host = result.hostname;
  
    // result.pathname is not always guaranteed to have a '/' prefix (e.g. relative urls)
    // only strip the slash if it is present.
    var pathname = result.pathname;
    if (pathname && pathname.charAt(0) === '/') {
      pathname = result.pathname.slice(1) || null;
    }
    config.database = pathname && decodeURI(pathname);
  
    var auth = (result.auth || ':').split(':');
    config.user = auth[0];
    config.password = auth.splice(1).join(':');
  
    if (config.ssl === 'true' || config.ssl === '1') {
      config.ssl = true;
    }
  
    return config;
  }
docs: Parse method copied from https://github.com/brianc/node-postgres Copyright (c) 2010-2014 Brian Carlson (brian.m.carlson@gmail.com) MIT License parses a connection string