This is a simple REST service built using Spring Boot, Spring MVC, and Spring Security OAuth that provides a single RESTful endpoint protected by OAuth2. The REST service is based on the Building a RESTful Web Service getting started guide. This project is built using a preview version of Java-based configuration support, available in Spring Security OAuth 2.0. Please log any issues or feature requests to the Spring Security OAuth project.

Use Gradle:

./gradlew clean build bootRun

Or use Maven:

mvn clean package spring-boot:run

Test the greeting endpoint:

curl http:https://localhost:8080/greeting

You receive the following JSON response, which indicates you are not authorized to access the resource:

{"error":"unauthorized","error_description":"Full authentication is required to access this resource"}

In order to access the protected resource, you must first request an access token via the OAuth handshake. Request OAuth authorization:

curl -X POST -vu clientapp:123456 http:https://localhost:8080/oauth/token -H "Accept: application/json" -d "password=spring&username=roy&grant_type=password&scope=read%20write&client_secret=123456&client_id=clientapp"

A successful authorization results in the following JSON response:

{"access_token":"ff16372e-38a7-4e29-88c2-1fb92897f558","token_type":"bearer","expires_in":43199,"scope":"read write"}

Use the access_token returned in the previous request to make the authorized request to the protected endpoint:

curl http:https://localhost:8080/greeting -H "Authorization: Bearer ff16372e-38a7-4e29-88c2-1fb92897f558"

If the request is successful, you will see the following JSON response:

{"id":1,"content":"Hello, World!"}

The service is deployed to Cloud Foundry and available for testing. Modify the previous commands to point to the following URL:

curl http:https://rclarkson-restoauth.cfapps.io/greeting