小编sai*_*esh的帖子

我正在尝试使用Node.js，Express和Mongodb构建REST API。我正在使用mongodb npm包连接到数据库，下面是我的sever.js文件代码

var express = require("express");
var app = express();
var bodyParser = require("body-parser");
var port = process.env.PORT || 8080;
var mongo = require("mongodb");
var Server = mongo.Server;
var Db = mongo.Db;
var ObjectID = mongo.ObjectID;
try{    
    var config = require('./configure.js');
}catch(e){
    console.log("configuration file is hidden on github for security");
    config = null;
}
var usersCollection = config.usersCollection;
var login = require('./routes/login/index.js');
var signup = require('./routes/signup/index.js');
var Database = new Db(process.env.DBNAME || config.DBNAME , new Server(process.env.DBHOST || config.DBHOST, process.env.DBPORT …