rest server showcasing post/get/ getbyId using express/mongoose/mongodb

gistfile1.js

var express = require('express');
var app = express();
var request = require("request");

var bodyParser = require('body-parser')
app.use(bodyParser.json()); // to support JSON-encoded bodies
app.use(bodyParser.urlencoded({ // to support URL-encoded bodies
    extended: true
}));



var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/massdrop');

var JobSchema = new mongoose.Schema({
    name: String,
    url: String,
    content: String,
    status: String,
    created_at: {
        type: Date
    },
    updated_at: {
        type: Date
    }
});
//Job Model
var Job = mongoose.model('Job', JobSchema);

JobSchema.pre('save', function(next) {
    now = new Date();
    this.updated_at = now;
    if (!this.created_at) {
        this.created_at = now;
    }
    next();
});

var updateContents = function(id) {
    Job.findOne({
        _id: id
    }, function(err, job) {

        request(job.url, function(error, response, body) {
            if (!error) {
                job.content = escape(body);
                job.status = "complete";
                job.save();
            } else {
                job.content = "";
                job.status = error;
                job.save();
            }
        });



    });
}

//API endpoint to check if server is up and running
app.get('/api', function(req, res) {
    res.send({
        status: 'running',
        _urls: {
            '/api/jobs': "get the list of jobs",
            "/api/jobs": "Create new Job",
            "/api/job/id": "get details of job"
        }
    });
});

//API to get list of all jobs
app.get('/api/jobs', function(req, res) {
    Job.find(function(err, jobs) {
        if (err) return console.error(err);
        console.log(jobs);
        res.send(jobs);
    })

});


//API to get details about specific job
app.get('/api/jobs/:id', function(req, res) {
    Job.findOne({
        '_id': req.params.id
    }, function(err, jobs) {
        //send 400 status code if record not found
        if (err) return res.status(400).send("record doesn't exists");
        console.log(jobs);
        res.send(jobs);
    })

});


//API to create a new job
app.post('/api/job', function(req, res) {
    console.log(req.body.name);
    var fJob = new Job({
        name: req.body.name,
        url: req.body.url,
        status: 'initiated'
    });
    fJob.save(function(err) {
        if (err) console.log('done');
        //Notice that post should return 201 as status code on successful creation of new resource
        res.status(201).send(fJob);
        updateContents(fJob._id);
    });

});


app.get('/', function(req, res) {
    res.send('Job Scheduler!')
})

var server = app.listen(3000, function() {
    var host = server.address().address
    var port = server.address().port
    console.log('Example app listening at http://%s:%s', host, port)

})