Node.js

3 days (21 hours)

Course overview

Node.js is a set of technologies allowing the execution of JavaScript code but also managing one’s software project and its dependencies with other libraries. Node.js has established itself as a major technology for fullstack JavaScript development thanks to its pragmatic and efficient approach. A large majority of projects using JavaScript use Node.js whether to create websites, develop web services or REST APIs, or as a building block for front-end or back-end applications.

Learning outcomes

This course teaches participants the following skills:

  • Understanding the architecture of Node.js
  • Install, configure and deploy JavaScript applications running on Node.js
  • Develop non-blocking asynchronous applications with Node.js
  • Implement the main built-in modules of Node.js: file system, network servers and http(s)
  • Develop dynamic web applications and REST APIs with Node.js

Prerequisites

To get the most out of this course, participants should have:

Have taken the course ‘JavaScript: language fundamentals’ or have equivalent knowledge

Target audience

This course is intended for the following participants:

Developers, integrators, software architects, technical project managers

Course Outline

1 Introduction to Node.js - What is Node.js? - The tools: node and npm - Node.js development environment - Node.js architecture concepts: IO, asynchronous, non-blocking, concurrency, event-loop, scalability

Workshops: - Installation of Node.js and a development environment - Demonstration of the event loop through a first asynchronous / non-blocking program - REPL

2 Events - Node.js event-based architecture - Event and EventEmitter - Synchronous vs. Asynchronous - Management of multiple or single events - Error management

Workshops: - Custom EventEmitter development

3 Streams - Examples of streaming data managed by Node.js - The different types of Streams - Internal buffers - Pipelines

Workshops: - Consume a Readable stream (http, fs) - Writing in a Writable (fs) stream - Exploiting a Duplex stream (net.Socket) - Use a Transform stream (zlib)

4 Error handling - The different types of errors - Error handling in synchronous APIs - Error handling in asynchronous APIs - Assertions - Logging via the Console API - Debugging a Node.js program

Workshops: - Error handling in synchronous APIs - Error handling in asynchronous APIs - Debug a Node.js program in its IDE or in Chrome

5 Modularity - Global Object and inter-module scope - Globally accessible objects - Modules, scopes and file management - Core modules - Main module - Module loading algorithm and module cache - NPM and third-party modules

Workshops: - Using the Global object - Globally accessible objects: process - Use of core modules: timer, OS, Util, Path,… - Internal module creation for the application - Creation of a Node.js project via NPM and installation of popular modules

6 TCP/UDP Servers/Clients - Net module for creating TCP servers and clients - UDP/Datagram module for creating UDP/Datagram servers and clients

Workshops: - Creation of TCP server/clients - Creation of UDP/Datagram server/clients

7 Http, https and http/2 servers and clients - Http, https and http/2 modules for creating http, https and http/2 servers and clients - Url module to process http requests

Workshops: - Creation of http, https and http/2 servers and clients as part of a website - Creation of http, https and http/2 servers and clients as part of a RESTFul webservice

8 File system interactions - The fs module and its closeness to POSIX - Synchronous APIs vs Asynchronous APIs

Workshops: - File system interactions via synchronous and asynchronous APIs

9 Web back-end development - Data management with Relational databases (Mysql) or NoSQL (Mongo, Redis) - Middleware management (connect, expressjs) - Template management (ejs)

Workshops: - Creation of a static and dynamic web backend with express.js - Creation of a RESTFul API with express.js

10 Deploy a Node.js application - NPM: the main commands - NPM: packaging a module - Different ways of deploying a Node.js project - Forever and PM2 modules

Workshops: - Package a library - Dockerize a Node.js web application

€1590 ex. VAT

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