Book Image

Node.js Web Development - Fourth Edition

By : David Herron
Book Image

Node.js Web Development - Fourth Edition

By: David Herron

Overview of this book

Node.js is a server-side JavaScript platform using an event-driven, non-blocking I/O model allowing users to build fast and scalable data-intensive applications running in real time. This book gives you an excellent starting point, bringing you straight to the heart of developing web applications with Node.js. You will progress from a rudimentary knowledge of JavaScript and server-side development to being able to create, maintain, deploy and test your own Node.js application.You will understand the importance of transitioning to functions that return Promise objects, and the difference between fs, fs/promises and fs-extra. With this book you'll learn how to use the HTTP Server and Client objects, data storage with both SQL and MongoDB databases, real-time applications with Socket.IO, mobile-first theming with Bootstrap, microservice deployment with Docker, authenticating against third-party services using OAuth, and use some well known tools to beef up security of Express 4.16 applications.
Table of Contents (19 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Traditional Linux Node.js service deployment


Traditional Linux/Unix server application deployment uses an init script to manage background processes. They are to start every time the system boots and cleanly shut down when the system is halted. While it's a simple model, the specifics of this vary widely from one operating system (OS) to another.

A common method is for the init process to manage background processes using shell scripts in the /etc/init.d directory. Other OSes use other process managers, such as upstart or launchd

The Node.js project itself does not include any scripts to manage server processes on any OS. Node.js is more like a construction kit, with the pieces and parts to build servers, and is not a complete polished server framework itself. Implementing a complete web service based on Node.js means creating the scripting to integrate with process management on your OS. It's up to us to develop those scripts.

Web services have to be:

  • Reliable: For example, to auto-restart...