Introduction to OAuth with Node.js (Book and Express.js v4.x Cheatsheet)


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Introduction to OAuth with Node.js

Twitter API OAuth 1.0, OAuth 2.0, OAuth Echo, Everyauth and OAuth2.0 Server Examples

About the Book

This book is available at

A typical modern web application has to communicate with other services, even if it’s your own service or application. This is usually done via an open standard for authorization, or OAuth. Therefore, your ability to easily and skillfully use OAuth in your work is paramount!

There are standards, specifications, and fancy diagrams, and it is certainly useful to read them as a first step. However, developers often need hands-on experience to acquire the full understanding and confidence necessary to execute this critical task (i.e., use OAuth) efficiently and correctly.

Introduction to OAuth in Node.js is a concise practical book designed to help you to get started with OAuth 1.0, 2.0, and Echo, and to implement a Sign in with Node.js using Twitter API (and ideally any other) authentication. Who has time to read thick and complex books anyway? So this is your mini-book!

In this mini-book, we’ll explore the three main authentication methods utilizing minimalistic oauth module to explain the basics, and then use extensive everyauth with an Express.js app. The last but not least, is OAuth 2.0 server implementation with oauth2-server. So the chapters of the book are organized in the following order:

  • OAuth 1.0 one-legged
  • OAuth 2.0 one-legged
  • OAuth Echo
  • OAuth 1.0 Sign in with Everyauth and Express.js (three-legged OAuth 1.0)
  • OAuth 2.0 Server and Client

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About the Author

Azat Mardan
Azat Mardan

Update: you can check out my books and buy them at

Azat Mardan has over 12 years of experience in web, mobile and software development. With a Bachelor’s Degree in Informatics and a Master of Science in Information Systems Technology degree, Azat possesses deep academic knowledge as well as extensive practical experience.

Recently, he has worked as an engineer at the curated social media news aggregator website, (acquired by LiveFyre). Before that, Azat worked as a CTO/co-founder at Gizmo — an enterprise cloud platform for mobile marketing campaigns, and has undertaken the prestigious 500 Startups business accelerator program. Previously, he was developing mission-critical applications for government agencies in Washington, DC: National Institutes of Health, National Center for Biotechnology Information,Federal Deposit Insurance Corporation, and Lockheed Martin. Azat is a frequent attendee at Bay Area tech meet-ups and hackathons (AngelHack hackathon ’12 finalist with team

In addition, Azat teaches technical classes at General Assembly and Hack Reactor, pariSOMA and Marakana (acquired by Twitter) to much acclaim.

In his spare time, Azat writes about technology on his blog: which is number one in “express.js tutorial” Google search results. Azat is also the author of Express.js Guide, Rapid Prototyping with JS and Oh My JS!

Table of Contents

  • Introduction
    • How to Use the Book
    • Source Code
    • Notation
    • Terms
  • 1. OAuth 1.0
  • 2. OAuth 2.0
  • 3. OAuth Echo
  • 4. OAuth 1.0 Sign in with Everyauth
  • 5. OAuth 2.0 Server
  • Summary
    • About the Author
    • Contact Information
  • Source Code Link
  • Appendix A: Node.js oauth Module API Briefly
      • OAuth
      • OAuthEcho
      • Methods
      • OAuth2
  • Appendix B: Useful Twitter API v1.1 Resources
  • Appendix C: Tools

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