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- Use ${mockserver.url} instead of mock://
- Consistency between reactive/imperative samples

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OAuth 2.0 Resource Server Sample

This sample demonstrates integrating Resource Server with a mock Authorization Server, though it can be modified to integrate with your favorite Authorization Server.

With it, you can run the integration tests or run the application as a stand-alone service to explore how you can secure your own service with OAuth 2.0 Bearer Tokens using Spring Security.

1. Running the tests

To run the tests, do:

./gradlew integrationTest

Or import the project into your IDE and run ServerOAuth2ResourceServerApplicationTests from there.

What is it doing?

By default, the tests are pointing at a mock Authorization Server instance.

The tests are configured with a set of hard-coded tokens originally obtained from the mock Authorization Server, and each makes a query to the Resource Server with their corresponding token.

The Resource Server subsquently verifies with the Authorization Server and authorizes the request, returning the phrase

Hello, subject!

where "subject" is the value of the sub field in the JWT returned by the Authorization Server.

2. Running the app

To run as a stand-alone application, do:

./gradlew bootRun

Or import the project into your IDE and run ServerOAuth2ResourceServerApplication from there.

Once it is up, you can use the following token:

export TOKEN=eyJhbGciOiJSUzI1NiJ9.eyJzdWIiOiJzdWJqZWN0IiwiZXhwIjo0NjgzODA1MTI4fQ.ULEPdHG-MK5GlrTQMhgqcyug2brTIZaJIrahUeq9zaiwUSdW83fJ7W1IDd2Z3n4a25JY2uhEcoV95lMfccHR6y_2DLrNvfta22SumY9PEDF2pido54LXG6edIGgarnUbJdR4rpRe_5oRGVa8gDx8FnuZsNv6StSZHAzw5OsuevSTJ1UbJm4UfX3wiahFOQ2OI6G-r5TB2rQNdiPHuNyzG5yznUqRIZ7-GCoMqHMaC-1epKxiX8gYXRROuUYTtcMNa86wh7OVDmvwVmFioRcR58UWBRoO1XQexTtOQq_t8KYsrPZhb9gkyW8x2bAQF-d0J0EJY8JslaH6n4RBaZISww

And then make this request:

curl -H "Authorization: Bearer $TOKEN" localhost:8080

Which will respond with the phrase:

Hello, subject!

where subject is the value of the sub field in the JWT returned by the Authorization Server.

Or this:

export TOKEN=eyJhbGciOiJSUzI1NiJ9.eyJzdWIiOiJzdWJqZWN0Iiwic2NvcGUiOiJtZXNzYWdlOnJlYWQiLCJleHAiOjQ2ODM4MDUxNDF9.h-j6FKRFdnTdmAueTZCdep45e6DPwqM68ZQ8doIJ1exi9YxAlbWzOwId6Bd0L5YmCmp63gGQgsBUBLzwnZQ8kLUgUOBEC3UzSWGRqMskCY9_k9pX0iomX6IfF3N0PaYs0WPC4hO1s8wfZQ-6hKQ4KigFi13G9LMLdH58PRMK0pKEvs3gCbHJuEPw-K5ORlpdnleUTQIwINafU57cmK3KocTeknPAM_L716sCuSYGvDl6xUTXO7oPdrXhS_EhxLP6KxrpI1uD4Ea_5OWTh7S0Wx5LLDfU6wBG1DowN20d374zepOIEkR-Jnmr_QlR44vmRqS5ncrF-1R0EGcPX49U6A

curl -H "Authorization: Bearer $TOKEN" localhost:8080/message

Will respond with:

secret message

2. Testing against other Authorization Servers

In order to use this sample, your Authorization Server must support JWTs that either use the "scope" or "scp" attribute.

To change the sample to point at your Authorization Server, simply find this property in the application.yml:

          jwk-set-uri: ${mockwebserver.url}/.well-known/jwks.json

And change the property to your Authorization Server’s JWK set endpoint:


And then you can run the app the same as before:

./gradlew bootRun

Make sure to obtain valid tokens from your Authorization Server in order to play with the sample Resource Server. To use the / endpoint, any valid token from your Authorization Server will do. To use the /message endpoint, the token should have the message:read scope.