Mastering OAuth 2.1 Authorization with Spring Boot 3

OAuth 2.1 is the latest evolution in the OAuth protocol, designed to address the security challenges and shortcomings of OAuth 2.0. It simplifies the implementation and improves security features. This tutorial will guide you through setting up OAuth 2.1 authorization in a Spring Boot 3 application.

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1. Setting Up Your Development Environment

Ensure you have the following installed:

• Java Development Kit (JDK)
• Integrated Development Environment (IDE)
• Maven or Gradle

2. Creating a New Spring Boot Project

Use Spring Initializr to set up your project:

1. Visit Spring Initializr.
2. Configure your project settings and add the following dependencies:

• Spring Web
• Spring Security
• OAuth2 Resource Server
• OAuth2 Client

Download the project and open it in your IDE.