save.js

var mongoose = require('mongoose');
var c = mongoose.connect('mongodb://localhost/test');
var db = mongoose.connection;
//console.log(c.connection === mongoose.connection);

//var con = mongoose.createConnection('mongodb://localhost/test');
//console.log(con.connection === mongoose.connection);


db.on('error', console.error.bind(console, 'connection error:'));

db.once('open', function (callback) {
    console.log('Connected to Mongo with Mongoose');
    insertDocuments(db);
});

var ackSchema = new mongoose.Schema({
    hostgroup : String,
    host : String,
    service : String,
    timePeriod : String,
    startTime : Number,
    ackTime : Number,
    deltaTime : Number,
    caseNumb : String,
    state : Number,
    author : String,
    ackId : Number,
    });

// Creation of the model document
var ackModel = mongoose.model('test', ackSchema, 'test');

var insertDocuments = function(db) { 
	var ack = new ackModel (
	{
	  ackId: 1184,
	  author: 'victor.b',
	  caseNumb: 'C.10',
	  deltaTime: -1200,
	  state: 2,
	  ackTime: 1452590840,
	  startTime: 1452592040,
	  timePeriod: 'RESSOURCES-GPE-N1-8/20',
	  service: 'Service-Random-5M',
	  host: 'CRI_HOST3',
	  hostgroup: 'CRIDF' }
	);
	
    console.log(ack);       
    //console.log(getTimeStamp() + 'SAVE Mongoose : ' + ack.author + ' ' + ack.ackId);

	ack.save(function (err1, ack) {
		if (err1) {
			console.log( 'Mongoose .save error : ' + err1);
		}
		else { 
			console.log('SAVE Mongoose : ' + ack.author + ' ' + ack.ackId); 
		}
	});	
};