Oauth 2.0 Simplified Secure Api Access For Beginners

A complete guide to understanding and implementing OAuth 2.0 for secure API access

What you'll learn

Understand the core concepts behind OAuth 2.0 and why it's needed

Learn how OAuth 2.0 differs from traditional authentication methods

Explore the different components: client, authorization server, and resource server

Understand the major OAuth 2.0 flows: Authorization Code, Client Credentials, Implicit, and Password

Learn how access tokens and refresh tokens work

Discover how scopes, grant types, and redirects are used in real scenarios

Implement OAuth 2.0 step-by-step in web and mobile applications

Learn how to use OAuth 2.0 with popular providers like Google, GitHub, and Facebook

Understand how to securely store and manage tokens Debug and test OAuth 2.0 requests using tools like Postman

Learn common mistakes and best practices in OAuth 2.0 implementation

Requirements

No prior knowledge of OAuth 2.0 or authentication systems required

Description

OAuth 2.0 is one of the most widely used authorization frameworks on the web today. Whether you're developing web applications, mobile apps, or APIs, understanding how OAuth 2.0 works is essential for creating secure and user-friendly experiences. This course is designed to help you understand OAuth 2.0 in a clear and practical way, even if you're completely new to the topic.We’ll begin by exploring the basic concepts of authorization and how OAuth 2.0 fits into the bigger picture of modern web security. You’ll learn how different apps and services can securely share data without sharing passwords, and how access tokens make this possible. As we move forward, you'll see real examples of how OAuth 2.0 is used by popular platforms like Google, Facebook, and GitHub.This course will take you through the different components of the OAuth 2.0 framework, including clients, authorization servers, and resource servers. We'll break down complex topics like authorization codes, token lifetimes, and refresh tokens in a way that’s easy to understand. You’ll also gain insight into common OAuth 2.0 flows used in real applications, such as the Authorization Code flow and Client Credentials flow.By the end of this course, you'll have a solid understanding of how OAuth 2.0 works behind the scenes and how to apply it in your own projects. You’ll be better equipped to build secure applications and confidently use OAuth 2.0 in both personal and professional projects

Overview

Section 1: INTRODUCTION

Lecture 1 WHAT YOU NEED TO KNOW

Lecture 2 PREREQUISITES

Section 2: OAUTH 2.0

Lecture 3 OAUTH 2.0

Lecture 4 OAUTH 2.0 EXTENSIONS

Lecture 5 OAUTH 2.0 WITH OPEN ID CONNECT

Section 3: STARTING CONCEPTS

Lecture 6 OAUTH FUNDAMENTALS

Lecture 7 OAUTH ENDPOINT

Lecture 8 DESIGNING AND USING OAUTH SCOPES

Section 4: TOKENS

Lecture 9 OAUTH 2.0 TOKENS

Lecture 10 VALIDATING JWTS

Lecture 11 ACCESS AND REFREASH TOKEN

Lecture 12 PARSING AND USING ID TOKENS

Lecture 13 HANDING TOKEN SAFELY AND SECURELY

Section 5: AUTHORIZATION CODE

Lecture 14 AUTHORIZATION CODE FLOW

Lecture 15 WHEN SHOULD I USE AUTHORIZATION CODEFLOW

Lecture 16 PKCE

Lecture 17 WHEN SHOULD USE PKCE

Lecture 18 AUTHORIZATION CODE FLOW EXAMPLE

Lecture 19 NATIVE APP OR SPA EXAMPLE

Lecture 20 SECURITY CONSIDERATIONS

Section 6: IMPLICIT FLOW

Lecture 21 IMPLICIT FLOW

Lecture 22 WHEN SHOULD USE IMPLICIT FLOW

Lecture 23 GREAT EXAMPLE APP

Lecture 24 SECURITY CONSIDERATION

Section 7: GRAN TYPE RESOURCE OWNER PASSWORD

Lecture 25 RESOURCE OWNER PASSWORD

Lecture 26 WHEN SHOULD WE USE IT

Section 8: CLIENTS CREDENTIAL FLOW

Lecture 27 CLIENT CREDENTIAL FLOW

Lecture 28 WHEN SHOULD I USE THIS

Section 9: DEVICE GRANT TYPE FLOW

Lecture 29 DEVICE FLOW OVERVIEW

Lecture 30 WHEN SHOULD YOU USE THIS

Lecture 31 BUILD EXAMPLE KIOSK

Lecture 32 SECURITY CONSIDERATION

Section 10: USING AN OAUTH

Lecture 33 OAUTH RECOMMANDATION

Developers who want to understand how OAuth 2.0 works,Web and mobile app developers who need to implement secure authentication,Backend and API developers looking to protect resources using OAuth 2.0,Students or professionals interested in web security and modern authorization,Anyone who uses third-party APIs and needs to understand how OAuth-based access works,Beginners curious about how apps like Google or Facebook handle login and permissions