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Chapter 12 : Popular Node.js Web Frameworks

Chapter 12 : Popular Node.js Web Frameworks

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Popular Node.js Web Frameworks


Koa is a new web framework designed by the same team that created Express.js.
The goal of Koa is to be smaller, more expressive, and a more robust foundation for
web applications. T J Holowaychuk, who is the creator of the Express framework,
is the same person who created Koa as well and you can see it focuses much of its
capabilities on generators, which is a feature found in other popular programming
languages such as Python, C#, and Ruby. Generators were introduced to JavaScript
with ECMAScript 6. Generators prevent the standard callback hell that is so popular
with the development process in Node.js. Koa has a lightweight architecture, so
it doesn't come with any middleware, rather, it leaves the choice of implementing
certain features to the developers.
The Koa website, http://koajs.com, is shown in the following screenshot:

More information about Koa and sample implementations can be found on its
website as well as at https://github.com/koajs/koa.


Meteor is a simple and complete web framework with the goal of giving developers
of any skillset the ability to build robust web applications in a fraction of the time.
It features a handy CLI tool that you can use to scaffold new projects very quickly.

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Chapter 12

Meteor provides some core projects/libraries such as blaze, DDP, livequery, and so
on with a unified build system. This simplifies the overall development process and
yields an integrated developer experience. The overall architecture that the Meteor
platform handles is shown as follows:

Meteor aims to build real-time applications by providing its two core features, the
distributed data protocol on the server side and transparent reactive rendering on
the client side. For more details, please visit: http://meteor.com/features.
Another notable feature of this framework is its extensive package system, named
atmosphere, which has modules developed for most of the common application
use cases.
It is quickly gaining traction and becoming increasingly popular every day.
Currently, its GitHub repo has over 27,000 stars!
More information about Meteor can be found on its website as well as on its official
GitHub repo at https://github.com/meteor/meteor.

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Popular Node.js Web Frameworks


Sails is another great MVC framework for building web applications using Node.js
that sometimes compares itself to Ruby on Rails. Unlike Meteor, Sails is database
agnostic, so it doesn't matter which data store you choose. Sails includes some
handy scaffolding tools such as an automatic RESTful API generation. Socket.io,
a real-time communication framework for Node.js, is built into Sails; so including
real-time functionalities in your application should be a breeze. Sails features some
nice production-level automation that would typically need to be handled by a
tool such as Grunt.js or Gulp (this includes the minification and bundling of CSS
and JavaScript for the frontend). Sails also includes basic security and role-based
authentication for your app, should you require that level of functionality. Sails
could be considered a more full-fledged enterprise level framework than Express,
as it has almost every feature that a popular framework such as rails has.
The Sails website is at http://sailsjs.com.

More information about Sails can be found on its website as well as its official
GitHub repo at https://github.com/balderdashy/sails.

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Hapi is the result of the team behind Walmart's online mobile website. The team
that built that website developed a rich set of Node.js utilities and libraries that
can be found under the Spumko umbrella. Considering the tremendous amount of
traffic Walmart's website receives on any given day, it's no wonder that the team at
WalmartLabs is on the top of their game when it comes to Node.js development and
best practices. Hapi is the web framework that was born from the ashes of real-world
trial and error.
The Hapi website is at http://hapijs.com:

More information about Hapi can be found on its website as well as its official
GitHub repo at https://github.com/spumko/hapi.

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Popular Node.js Web Frameworks


Flatiron is yet another Node.js MVC web application framework. What sets Flatiron
apart from other frameworks is its package-based approach. Since it gives the power
and freedom to decide how much or how little the framework should include,
developers can pick and choose the packages they want to work with and include in
their project. It handles a lot of the basic data management responsibilities and CRUD
for you by supplying a powerful ODM that takes care of a lot of the heavy lifting.
The Flatiron website (http://flatironjs.com) is shown in the following screenshot:

More information about Flatiron can be found on its website as well as its official
GitHub repo at https://github.com/flatiron/flatiron.

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Even though we used Express.js exclusively throughout this book, there are many
other options available when creating web applications using Node.js. We examined
a few of those options in this chapter, including Meteor, Sails, Hapi, Koa, and Flatiron.
Each framework features its own strengths and weaknesses and its own unique
approach to the standard functionality that a web application requires.
That's all folks. I hope all the different facets of building a web app using Node.js
and MongoDB brought the readers to a progressive way of learning and developing
an awesome idea. Well, this is just the start. I would recommend you follow the
developer communities of all the technologies or libraries that you are going to use
in your own app.
The beauty of web development with Node.js is that there's no shortage of opinions
on how to accomplish a single task. MVC frameworks are no exception, and you can
see from this chapter there are a lot of really robust and feature-packed frameworks
to choose from.

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Amazon Web Services (AWS)
about 1, 230
application, deploying with 230
about 249
URL 250
anonymous functions, JavaScript 38
API endpoint
consuming, Request used 182-184
deploying 218
deploying, with Amazon Web
Services (AWS) 230
deploying, with Heroku 224-229
deploying, with Microsoft Azure 235-240
deploying, with Nodejitsu 218-224
testing 199
writing 23
application code
about 24-26
actual database, checking 27
writing 24
Application Programming Interface
(API) 164
arrays, JavaScript 36
asynchronous execution, Node.js 40
async module 147
Atom 13
automated build task managers 250-252
AWS environment
configuring 232-234
creating 232-234

about 246
URL 247
basic API server
creating 171
basic Mongoose schema definition
example 120
Behavior Driven Development (BDD)
about 188
reference link 191
URL 73
URL 253
Brackets 13
URL 252
about 253
URL 253
built-in validation 122, 123

callback 151
callback, JavaScript 38
Chai 191
references 191, 192
tests, asserting with 190
Chrome Web Store
URL 165
client-side templating 72

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versus traditional hosting 216
comments helper 147-149
comments module 107, 108
URL 14
configure module
about 59, 60
activating 61
Connect middleware
about 60
bodyParser 60
cookieParser 60
errorHandler 60
Handlebars 60
methodOverride 60
morgan 60
Content Delivery Network (CDN) 109
controller handler
adding 158, 159
about 52, 91, 92
CRUD, adding to 129
defining 61-67
testing 208-211
create, read, update, delete (CRUD)
about 44, 129
adding, to controllers 129
adding, to home controller 130-132
CSS transpiling 254-256
custom middleware 67

receiving 175-180
removing 180, 181
data types
array 119
Boolean 119
buffer 119
date 119
mixed 119
number 119
ObjectID 119
string 119

data types, JavaScript 31
DELETE request 180
dependency management 252, 253
dependent modules
obtaining 24
Digital Ocean
about 240-242
URL 240
Document Object Model (DOM) 109
URL 254

EcmaScript6 (ES6) 7
URL 254
about 248, 249
URL 249
endpoint URLs, RESTful API 165
event-driven, Node.js 40
Express.js 52, 244
external APIs
consuming, from Node.js 181, 182

file IO 7
File Transfer Protocol (FTP) 217
first test
running 196
writing 196
about 264
references 264
flow, JavaScript 32-34
frontend design patterns
reference link 253
frontend development tools
about 250
automated build task managers 250-252
CSS transpiling 254-256
dependency management 252, 253
HTML template-rendering engines 254
modularity 253

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frontend framework
AngularJS 249, 250
Backbone.js 246, 247
Ember.js 248, 249
TodoMVC project 245, 246
using, reasons 244
frontend template-rendering engines
Dust.js 254
EJS 254
Handlebars 254
Mustache 254
Underscore.js 254
functions, JavaScript 36, 37

GET requests
responding to 173-175
about 217
references 217
global helpers, Handlebars 85, 86
Gmail 244
about 79
URL 79
Grunt 252
URL 252
URL 252

basics 83
object, binding to template 83
presentation logic, embedding 84
URL 254
using, as view engine 68, 69
Handlebars helpers
about 85
global helpers 85, 86
view-specific helpers 86
Handlebars image page template
updating 159, 160

about 263
references 263
about 146
async module 147
comments helper 147-149
helper sidebar 151-153
popular images helper 157
stats helper 154-156
helpers, for reusable code
about 103
comments module 107, 108
images module 105
sidebar module 103-105
stats module 105
helper sidebar 151-153
about 224
application, deploying with 224-229
URL 224
hoisting concept
reference link 38
home controller
about 129
CRUD, adding to 130-132
updating 93-95
home page view
creating 73-78
HTML template-rendering engines 254
HTTP verbs
GET 164
POST 164
PUT 164

displaying 96-98
uploading 98-103
image controller
about 132
comment model, inserting 144-146
image model, inserting 136-139

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image model, retrieving 132-136
image model, updating 142, 143
support, adding for Like button 142, 143
test run, performing 139-142
image page view
creating 73-78
image removal capability
adding 158
images module 105
URL 183
imgPloadr.io 53
Infrastructure as a Service (IaaS)
about 216
versus Platform as a Service 216
installation instructions, Postman
REST Client 165-169
installation, modules
npm used 42-44
installation, MongoDB
about 19
on Linux 21, 22
on Mac OS X 19, 20
on Windows 7 / Windows 8 20, 21
verifying 22
installation, Node.js
about 14
on Linux 17
on Mac OS X 14, 15
on Windows 16, 17
testing 18
origin 7
URL 14

about 29
anonymous functions 38
arrays 36
callbacks 38
data types 31
flow 32-34
functions 36, 37
objects 34, 35

operators 32-34
references 48
reusing 5
sharing 5
syntax 30
variable, declaring in 30
variable scope 31, 32
updating 160, 161
URL 109
JSONView Chrome extension
using 170

Karma 256
about 260
references 260

layout file
creating, for app 79, 80
layouts 79
URL 256
MongoDB, installing on 21, 22
Node.js, installing on 17

Mac OS X
MongoDB, installing on 19, 20
Node.js, installing on 14, 15
MEAN (MongoDB, Express, Angular,
and Node.js) 241
about 260
references 261
Microsoft Azure
about 235
application, deploying with 235-240
URL 235
using 58, 59
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