Beginning API Development with Node.js E-Book

Anthony Nandaa

• Herausgeber: Packt Publishing
• Kategorie: Wissenschaft und neue Technologien
• Sprache: Englisch

Seitenzahl: 75

Veröffentlichungsjahr: 2018

Beschreibung

Learn everything you need to get up and running with cutting-edge API development using JavaScript and Node.js; ideal for data-intensive real-time applications that run across multiple platforms.

Key Features

• Build web APIs from start to finish using JavaScript across the development stack
  
  


• Explore advanced concepts such as authentication with JWT, and running tests against your APIs
  
  


• Implement over 20 practical activities and exercises across 9 topics to reinforce your learning
  
  

Book Description

Using the same framework to build both server and client-side applications saves you time and money. This book teaches you how you can use JavaScript and Node.js to build highly scalable APIs that work well with lightweight cross-platform client applications. It begins with the basics of Node.js in the context of backend development, and quickly leads you through the creation of an example client that pairs up with a fully authenticated API implementation. By the end of the book, you'll have the skills and exposure required to get hands-on with your own API development project.

What you will learn

• Understand how Node.js works, its trends, and where it is being used now
  
  


• Learn about application modularization and built-in Node.js modules
  
  


• Use the npm third-party module registry to extend your application
  
  


• Gain an understanding of asynchronous programming with Node.js
  
  


• Develop scalable and high-performing APIs using hapi.js and Knex.js
  
  


• Write unit tests for your APIs to ensure reliability and maintainability

Who this book is for

This book is ideal for developers who already understand JavaScript and are looking for a quick no-frills introduction to API development with Node.js. Though prior experience with other server-side technologies such as Python, PHP, ASP.NET, Ruby will help, it's not essential to have a background in backend development before getting started.

Leseprobe

Beginning API Development with Node.js

Build highly scalable, developer-friendly APIs for the modern web with JavaScript and Node.js

Anthony Nandaa

BIRMINGHAM - MUMBAI

Beginning API Development with Node.js

Copyright © 2018 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

Acquisitions Editor: Koushik SenContent Development Editors: Tanmayee Patil, Rutuja YerunkarProduction Coordinator: Ratan Pote

First published: July 2018

Production reference: 1230718

Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK.

ISBN 978-1-78953-966-0

www.packtpub.com

 

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Contributors

About the Author

Anthony Nandaa is a senior software developer with more than 7 years of professional programming experience. He was introduced to programming 3 years before his career as a developer began, working with Pascal and VB 6. In his career so far, he has worked with multiple languages, such as Python, PHP, Go, and full-stack JavaScript.

In his current role, he leads a team of engineers working with Node.js and React for frontend development. He considers himself a lifelong learner, and lately, he has been learning Haskell for fun and to gain some insight into pure functional programming.

About the Reviewer

Sam Anderson is an electronic engineer turned developer currently working for an award-winning creative digital agency based in Sheffield, England. Having moved from the world of hardware design, he is passionate about creating fast, beautiful, and efficient frontend applications. You can follow him on Twitter at @andomain.

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Table of Contents

Title Page

Copyright and Credits

Beginning API Development with Node.js

Packt Upsell

Why Subscribe?

PacktPub.com

Contributors

About the Author

About the Reviewer

Packt Is Searching for Authors like You

Preface

Who This Book Is For

What This Book Covers

To Get the Most out of This Book

Download the Example Code Files

Conventions Used

Get in Touch

Reviews

Introduction to Node.js

The Basics of Node.js

Applications of Node.js

Activity: Running Basic Node.js Code

The Module System

Application Modularization

Module Categories

Built-In Modules

npm – Third-Party Module Registry

Scanning for node_modules

Handy npm Commands

Local Modules

Activity: Using a Third-Party Package for the Previous math.js Code

Asynchronous Programming with Node.js

Callbacks

Promises

Async/Await

Activity: Transforming a Text File Using an Async Function

Summary

Building the API - Part 1

Building a Basic HTTP Server

Setting up Hapi.js

Exercise 1: Building a Basic Hapi.js Server

Using an API Client

Returning JSON Strings

Exercise 2: Returning JSON

Using nodemon for Development Workflow

Exercise 3: Using nodemon

Setting up the Logger

Exercise 4: Setting up the Logger

Understanding Requests

A Look at HTTP Request Methods

Exercise 5: Getting a List of Resources

Exercise 6: Getting a Specific Resource

Exercise 7: Creating a New Todo with POST

Exercise 8: Updating a Resource with PUT

Exercise 9: Updating with PATCH

Exercise 10: Deleting a Resource with DELETE

Request Validation

Exercise 11: Validating a Request

Summary

Building the API - Part 2

Working with the DB Using Knex.js

Exercise 12: Setting up the Database

Exercise 13: Connecting to the Database

Exercise 14: Creating a Record

Exercise 15: Reading from the Database

Exercise 16: Updating a Record

Exercise 17: Deleting a Record

Exercise 18: Cleaning up the Code

Authenticating Your API with JWT

Exercise 19: Securing All the Routes

Exercise 20: Adding User Authentication

Authentication versus Authorization

Exercise 21: Implementing Authorization

Testing Your API with Lab

Exercise 22: Writing Basic Tests with Lab

Summary

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Preface

Using the same framework to build both server and client-side applications saves you time and money. This book teaches you how you can use JavaScript and Node.js to build highly scalable APIs that work well with lightweight cross-platform client applications. It begins with the basics of Node.js in the context of backend development, and quickly leads you through the creation of an example client that pairs up with a fully authenticated API implementation. 

This book balances theory and exercises, and contains multiple open-ended activities that use real-life business scenarios for you to practice and apply your newly acquired skills in a highly relevant context.

We have included over 20 practical activities and exercises across 9 topics to reinforce your learning. By the end of this book, you'll have the skills and exposure required to get hands-on with your own API development project.

Who This Book Is For

This book is ideal for developers who already understand JavaScript and are looking for a quick no-frills introduction to API development with Node.js. Though prior experience with other server-side technologies such as Python, PHP, ASP.NET, Ruby will help, it's not essential to have a background in backend development before getting started.

What This Book Covers

Chapter 1, Introduction to Node.js, covers a few fundamental concepts in Node.js, basic Node.js code and run it from the Terminal, module system, its categories, and asynchronous programming model that is at the heart of how Node.js works, and what actually makes Node.js tick.

Chapter 2, Building the API – Part 1, covers building a basic HTTP server, setting up Hapi.js, building basic API with Hapi.js Framework, and fundamental concepts of web applications.

Chapter 3, Building the API – Part 2, covers introduction to Knex.js and how we can use it to connect and use the database, essential CRUD database methods, API authentication using the JWT mechanism, CORS mechanism, testing the API using Lab library, and test automation using Gulp.js.

To Get the Most out of This Book

Prior experience with other server-side technologies, such as Python, PHP, ASP.NET, and Ruby will be beneficial but is not mandatory.

This book will require a computer system. The minimum hardware requirements  are 1.8 GHz or higher Pentium 4 (or equivalent) processor, 4 GB RAM, 10 GB hard disk, and a stable internet connection.

The software required are Visual Studio Code (

https://code.visualstudio.com/

), Node.js (8.9.1) (

https://nodejs.org/en/

), MySQL Workbench 6.3 (

https://www.mysql.com/products/workbench/

),  and MySQL (

https://dev.mysql.com/downloads/mysql/

).

Download the Example Code Files

You can download the example code files for this book from your account at www.packtpub.com