Welcome!

Blog Feed Post

Yeoman, Mongoose and MongoDB

In our previous post we talked about getting started with Mongoose and MongoDB. In this post, we will see how to use Yeoman and scaffold a new Mongoose/Express project.

Yeoman is a scaffolding tool, that scaffolds out projects using Grunt, Bower and Node. There are times when you end up cut ‘n pasting boilerplate code around to create a new project. This is precisely what Yeoman does, but with a single command and a few awesome generators.

Yeoman uses Grunt as the taskrunner to perform run/build/test tasks. If you want to use Gulp for the same, you can checkout Slush. Slush is also a Scaffolding tool but uses Gulp as the taskrunner.

Getting Started with Yeoman

To make our lives easy, we will be using a Super Awesome Yeoman Generator named generator-mongoose, which will help us in setting up a new project as well as help us in scaffolding schemas.

This generator uses Express js as the server, HTML for templating and a tinge of Bootstrap CSS to make things look good.

Let’s create a new folder and name it yoMongoose. CD into the folder and run the following :
To install Yeoman

[sudo] npm install -g yo

To install generator-mongoose

[sudo] npm install -g generator-mongoose

and finally run

yo mongoose

to scaffold a new project. Fill in the question like

[?] Database Name: (myDb) myTestDB
[?] Database Host: (localhost) localhost
[?] Database User: {hit return}
[?] Database Password: {hit return}
[?] Database Port: (27017) 27017
[?] Will you be using heroku? (Y/n)  n

And yeoman will go off and scaffold a new project for you. Your folder structure should consist of a /node_modules folder and a public/bower_components. If you do not see either of them, please run npm install and bower install.

To run the app, execute

grunt

This will start off the express server and launch the home page in your default browser. The default page you see is a list of routes configured in the application.

Back to the folder and let’s have a quick walkthrough of the app.

config/db.js – consist of the DB configs and some options you can mess around with

models/post.js – is an example schema of a blog post. All the other models, which we are going to scaffold with the sub generator will appear here.

public/ – consist of the Javascript and CSS needed for the UI

routes/
index.js – consist of the default route, that will dispatch the index.html
post.js – consist of 5 key endpoints you need to interact with the posts collection

test/ – consists of the test for Post route and its methods

views/ – consists of all the templates & views sent to the client.

I recommend taking a peek at the following in order

config/db.js
models/post.js
routes/post.js
app.js

to get a feel of where things go in a modular Express app. Once you are done, we will scaffold another model named articles using the sub generator.

Back to terminal/prompt and run

yo mongoose:schema "article|title:String,excerpt:String,content:String,published:Boolean,created:Date"

the above command will result in

Your creating a schema for article
With the fields: title,excerpt,content,published,created
starting request to schematic for test mock data...
create routes/article.js
create models/article.js
create test/test-article.js

And create those 3 files. And the models/article.js will consist of all the fields listed after the pipe symbol in the command. Sweet right?

To see the result run

grunt

and you can see the updated list of routes. Dig in to the newly generated files and with practically zero efforts, we were able to generate a Express/Mongoose app.

Hope you got a basic understanding of Scaffolding Express/Mongoose apps.

Thanks for reading. Do comment.
@arvindr21

Read the original blog entry...

More Stories By Dharshan Rangegowda

Dharshan is the founder of MongoDirector.com. Previous to MongoDirector Dharshan worked in the Virtualization and Data management groups in Microsoft.

Latest Stories
The past few years have brought a sea change in the way applications are architected, developed, and consumed—increasing both the complexity of testing and the business impact of software failures. How can software testing professionals keep pace with modern application delivery, given the trends that impact both architectures (cloud, microservices, and APIs) and processes (DevOps, agile, and continuous delivery)? This is where continuous testing comes in. D
The 22nd International Cloud Expo | 1st DXWorld Expo has announced that its Call for Papers is open. Cloud Expo | DXWorld Expo, to be held June 5-7, 2018, at the Javits Center in New York, NY, brings together Cloud Computing, Digital Transformation, Big Data, Internet of Things, DevOps, Machine Learning and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding busin...
Smart cities have the potential to change our lives at so many levels for citizens: less pollution, reduced parking obstacles, better health, education and more energy savings. Real-time data streaming and the Internet of Things (IoT) possess the power to turn this vision into a reality. However, most organizations today are building their data infrastructure to focus solely on addressing immediate business needs vs. a platform capable of quickly adapting emerging technologies to address future ...
SYS-CON Events announced today that Synametrics Technologies will exhibit at SYS-CON's 22nd International Cloud Expo®, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Synametrics Technologies is a privately held company based in Plainsboro, New Jersey that has been providing solutions for the developer community since 1997. Based on the success of its initial product offerings such as WinSQL, Xeams, SynaMan and Syncrify, Synametrics continues to create and hone in...
You know you need the cloud, but you’re hesitant to simply dump everything at Amazon since you know that not all workloads are suitable for cloud. You know that you want the kind of ease of use and scalability that you get with public cloud, but your applications are architected in a way that makes the public cloud a non-starter. You’re looking at private cloud solutions based on hyperconverged infrastructure, but you’re concerned with the limits inherent in those technologies.
Nordstrom is transforming the way that they do business and the cloud is the key to enabling speed and hyper personalized customer experiences. In his session at 21st Cloud Expo, Ken Schow, VP of Engineering at Nordstrom, discussed some of the key learnings and common pitfalls of large enterprises moving to the cloud. This includes strategies around choosing a cloud provider(s), architecture, and lessons learned. In addition, he covered some of the best practices for structured team migration an...
No hype cycles or predictions of a gazillion things here. IoT is here. You get it. You know your business and have great ideas for a business transformation strategy. What comes next? Time to make it happen. In his session at @ThingsExpo, Jay Mason, an Associate Partner of Analytics, IoT & Cybersecurity at M&S Consulting, presented a step-by-step plan to develop your technology implementation strategy. He also discussed the evaluation of communication standards and IoT messaging protocols, data...
With tough new regulations coming to Europe on data privacy in May 2018, Calligo will explain why in reality the effect is global and transforms how you consider critical data. EU GDPR fundamentally rewrites the rules for cloud, Big Data and IoT. In his session at 21st Cloud Expo, Adam Ryan, Vice President and General Manager EMEA at Calligo, examined the regulations and provided insight on how it affects technology, challenges the established rules and will usher in new levels of diligence arou...
Most technology leaders, contemporary and from the hardware era, are reshaping their businesses to do software. They hope to capture value from emerging technologies such as IoT, SDN, and AI. Ultimately, irrespective of the vertical, it is about deriving value from independent software applications participating in an ecosystem as one comprehensive solution. In his session at @ThingsExpo, Kausik Sridhar, founder and CTO of Pulzze Systems, discussed how given the magnitude of today's application ...
The “Digital Era” is forcing us to engage with new methods to build, operate and maintain applications. This transformation also implies an evolution to more and more intelligent applications to better engage with the customers, while creating significant market differentiators. In both cases, the cloud has become a key enabler to embrace this digital revolution. So, moving to the cloud is no longer the question; the new questions are HOW and WHEN. To make this equation even more complex, most ...
As you move to the cloud, your network should be efficient, secure, and easy to manage. An enterprise adopting a hybrid or public cloud needs systems and tools that provide: Agility: ability to deliver applications and services faster, even in complex hybrid environments Easier manageability: enable reliable connectivity with complete oversight as the data center network evolves Greater efficiency: eliminate wasted effort while reducing errors and optimize asset utilization Security: imple...
Mobile device usage has increased exponentially during the past several years, as consumers rely on handhelds for everything from news and weather to banking and purchases. What can we expect in the next few years? The way in which we interact with our devices will fundamentally change, as businesses leverage Artificial Intelligence. We already see this taking shape as businesses leverage AI for cost savings and customer responsiveness. This trend will continue, as AI is used for more sophistica...
In his Opening Keynote at 21st Cloud Expo, John Considine, General Manager of IBM Cloud Infrastructure, led attendees through the exciting evolution of the cloud. He looked at this major disruption from the perspective of technology, business models, and what this means for enterprises of all sizes. John Considine is General Manager of Cloud Infrastructure Services at IBM. In that role he is responsible for leading IBM’s public cloud infrastructure including strategy, development, and offering m...
Digital transformation is about embracing digital technologies into a company's culture to better connect with its customers, automate processes, create better tools, enter new markets, etc. Such a transformation requires continuous orchestration across teams and an environment based on open collaboration and daily experiments. In his session at 21st Cloud Expo, Alex Casalboni, Technical (Cloud) Evangelist at Cloud Academy, explored and discussed the most urgent unsolved challenges to achieve f...
In his session at 21st Cloud Expo, Raju Shreewastava, founder of Big Data Trunk, provided a fun and simple way to introduce Machine Leaning to anyone and everyone. He solved a machine learning problem and demonstrated an easy way to be able to do machine learning without even coding. Raju Shreewastava is the founder of Big Data Trunk (www.BigDataTrunk.com), a Big Data Training and consulting firm with offices in the United States. He previously led the data warehouse/business intelligence and B...