Book Image

MERN Quick Start Guide

By : Eddy Wilson Iriarte Koroliova
3 (1)
Book Image

MERN Quick Start Guide

3 (1)
By: Eddy Wilson Iriarte Koroliova

Overview of this book

The MERN stack is a collection of great tools—MongoDB, Express.js, React, and Node—that provide a strong base for a developer to build easily maintainable web applications. With each of them a JavaScript or JavaScript-based technology, having a shared programming language means it takes less time to develop web applications. This book focuses on providing key tasks that can help you get started, learn, understand, and build full-stack web applications. It walks you through the process of installing all the requirements and project setup to build client-side React web applications, managing synchronous and asynchronous data flows with Redux, and building real-time web applications with Socket.IO, RESTful APIs, and other concepts. This book gives you practical and clear hands-on experience so you can begin building a full-stack MERN web application. Quick Start Guides are focused, shorter titles that provide a faster paced introduction to a technology. They are for people who don't need all the detail at this point in their learning curve. The presentation has been streamlined to concentrate on the things you really need to know.
Table of Contents (8 chapters)

Modular route handlers

ExpressJS has a built-in class called router. A router is just a class that allows developers to write mountable and modular route handlers.

A Router is an instance of ExpressJS' core routing system. That means, all routing methods from an ExpressJS application are available:

const router = express.Router() 
router.get('/', (request, response, next) => { 
  response.send('Hello there!') 
})'/', (request, response, next) => { 
  response.send('I got your data!') 

Getting ready

In this recipe, we will see how to use a router to make a modular application. Before you start, create a new package.json file with the following content:

{ ...