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springboot-oauth2-bearer

README.md

springboot-oauth-bearer: SpringBoot OAuth2 Resource Server with Keycloak as Provider

Find detailed info on medium https://ravthiru.medium.com/springboot-oauth2-with-keycloak-for-bearer-client-3a31f608a78

What is it?

The springboot-oauth-bearer demonstrates how to configure Springboot OAUth2 Resource Server to use Keycloak as Provider. We write a Springboot application providing API which is protected with Keycloak. Only Requests with valid tokens can request API.

System Requirements

All you need to build this project is

  • Java 11 (Java SDK 1.11) or later
  • Gradle
  • Keycloak Server version 16+

Build and Run the springboot-oauth-bearer

  1. Open a terminal and navigate to the root directory of this springboot-Keycloak.

  2. Build application

     gradle build

  3. Build and Start springboot-keycloak application using below command

    gradle bootRun

Test application

To Get the Token

curl POST 'http://localhost:8080/realms/springboot/protocol/openid-connect/token' \ --header 'Content-Type: application/x-www-form-urlencoded' \ --data-urlencode 'client_id=demoapp' \ --data-urlencode 'username=testuser' \ --data-urlencode 'password=test123' \ --data-urlencode 'grant_type=password'

To Request The API

curl 'http://localhost:8081/employee/101' --header 'Authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICIzYmI2R3ZMaW9fMk82cVZadHlJcTdmV1hQb0FKX0stSDU3bmgtNUNqbHBBIn0.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.fh1tgCWtIlouoPgbNLvrBPBCq4Xa5_WOlRoIg16Bs_f9etSAY0qinQDeeNEblEfPRc_saTum7FcNcWUw078Nq_Hi_rfOuPHlqSVcM_i0imE7Acgf3yfEjmpW25dWl5IQNQDR2LtOftIjbc5w1wTCJO27ZlRjjyLO2aJ_BhnJvZXwITwcMigCWebMzY9wb0qusapJ6vh6FZWStFQ21vJUXwO-pbUuCmo3g7s33fiylGhBnQEF0U03QUXU84yCdqX5GjpOUPt80PzHUyUogPHwNGNKakEim8GnnnvwEQ44dMVx7uzSRtTJj6c-Nbt0HoBpS0z82rQamogeIXPxvzHEOQ'