mongo-mirror/mongo-mirror.js

a library that implements database mirroring from one reference mongo db URI to another mongo db URI

var restore = require('mongodb-restore')
var backup = require('mongodb-backup')
var rimraf = require('rimraf');

function mongomirror(originURI) {
  var destinationURI = process.env.MONGODB_URI
  if (!originURI || !destinationURI) {
    throw new Error();
  } else {
    var backupFolder = __dirname+'/TEMP';
    var index = originURI.lastIndexOf('/');
    var dbName = originURI.substr(index +1 , originURI.length-index)
    var restoreFolder = backupFolder + '/' + dbName;
    backup({
      uri: originURI,
      root: backupFolder,
      callback: function () {
        restore({
          uri: destinationURI,
          root: restoreFolder,
          drop: true,
          callback: function () {
            rimraf(backupFolder, function () {});
          }
        });
      }
    });
  }
}

module.exports = mongomirror