Add new spring boot example to playground

playground/README.md

@@ -14,3 +14,4 @@ The following subprojects are included with the playground:
 | [kinde-springboot-pkce-client-example](springboot-pkce-client-example/README.md)             | A Spring Boot PKCE example           |
 | [kinde-springboot-thymeleaf-full-example](kinde-``springboot-thymeleaf-full-example/README.md) | A Spring Boot Thymeleaf Full example |
 | [kinde-springboot-starter-example](kinde-springboot-starter-example/README.md)               | A Kinde Spring Boot Core example     |
+| [kinde-springboot-jwt-example](kinde-springboot-jwt-example/README.md)                       | A Kinde Spring Boot JWT example      |

playground/kinde-springboot-jwt-example/.gitignore

@@ -0,0 +1,26 @@
+# https://git-scm.com/docs/gitignore
+
+# ---------------------------------------------------------------------
+# DO NOT CHANGE THIS SECTION
+
+# Dependencies
+node_modules/
+
+# Compiled output
+dist/
+build/
+target/
+coverage/
+
+# Generated at runtime
+*.log
+.cache
+
+# Personal files
+.idea
+
+# System files
+.DS_Store
+
+# ---------------------------------------------------------------------
+# Add specific rules here…

playground/kinde-springboot-jwt-example/README.md

@@ -0,0 +1,22 @@
+# Kinde-SpringBoot-JWT-Example
+
+This project demonstrates how to use Spring Security and spring-boot-starter-oauth2-resource-server for authentication
+with Spring Boot. Kinde is used as a OAuth2 Provider
+
+## Setup
+
+Configure your application by editing `src/main/resources/application.properties`:
+
+```
+spring.security.oauth2.resourceserver.jwt.issuer-uri=https://<your-kinde-domain>.kinde.com
+```
+
+Replace `<your-kinde-domain>` with your actual Kinde domain (e.g., `myapp.kinde`).
+
+## Running the Application
+
+You can run the application using your IDE or with Maven:
+
+```shell
+./mvnw spring-boot:run
+```