cloudfoundry中的Node.js mongodb-native驱动程序身份验证

我目前正在尝试使用Node和Mongo进行一些自学习.我一直在查看各种博客条目,并且一直在搞乱使用mongo db工作在节点中编写一个简单的博客.

无论如何,我在使用cloudfoundry时遇到了麻烦.我查看了关于身份验证的mongodb-native用户组,并找到了一些节点脚本:

var Db = require('mongodb').Db;
var Connection = require('mongodb').Connection;
var Server = require('mongodb').Server;
var BSON = require('mongodb').BSON;
var ObjectID = require('mongodb').ObjectID;

ArticleProvider = function(dbname,host, port,username,password) {
  this.db= new Db(dbname, new Server(host, port, {auto_reconnect: true}, {}));
  this.db.open(function(){
        this.db.authenticate(username, password, function(err, db) { 
                callback(err, db); 
        }); 
  });
};

我不能为我的生活得到这个工作.

       this.db.authenticate(username, password, function() {}); 
                ^
TypeError: Cannot call method 'authenticate' of undefined
    at /home/ben/NodeJS/sandbox/NodeBlog/articleprovider-mongodb.js:10:17
    at /home/ben/NodeJS/sandbox/NodeBlog/node_modules/mongodb/lib/mongodb/db.js:81:14
    at /home/ben/NodeJS/sandbox/NodeBlog/node_modules/mongodb/lib/mongodb/connections/server.js:76:11
    at /home/ben/NodeJS/sandbox/NodeBlog/node_modules/mongodb/lib/mongodb/admin.js:16:12
    at [object Object]. (/home/ben/NodeJS/sandbox/NodeBlog/node_modules/mongodb/lib/mongodb/admin.js:124:12)
    at [object Object].emit (events.js:67:17)
    at [object Object]. (/home/ben/NodeJS/sandbox/NodeBlog/node_modules/mongodb/lib/mongodb/connections/server.js:97:12)
    at [object Object].emit (events.js:64:17)
    at Socket. (/home/ben/NodeJS/sandbox/NodeBlog/node_modules/mongodb/lib/mongodb/connection.js:108:16)
    at Socket.emit (events.js:64:17)

任何能够指出我是一个完整的facepalmer的人都会非常感激.

我也遇到过同样的问题.我更努力地找到了解决方案.

这对所有mongodb开发人员都非常有帮助.

var ArticleProvider =  function(host, port, username, password) {
  this.db= new Db('my_db', new Server(host, port, {auto_reconnect: true}, {}));
  this.db.open(function(err,data){
     if(data){
        data.authenticate(username, password,function(err2,data2){
             if(data2){
                 console.log("Database opened");
             }
             else{
                 console.log(err2);
             }
         });
      }
      else{
           console.log(err);
      }
   });
};

干杯..