This video demonstrates how to use Keycloak's admin REST API with a Spring Boot web application. OAuth 2.0 protocol was used for access token retrieval.
Keycloak REST API Documentation: https://www.keycloak.org/docs-api/5.0...
Keycloak OIDC token endpoint: http://localhost:8080/auth/realms/your-realm-name/protocol/openid-connect/token
Base URL for REST API: http://localhost:8080/auth/admin/realms
(Host: localhost:8080 BasePath: /auth/admin/realms)
Example for listing users: GET http://localhost:8080/auth/admin/realms/your-realm-name/users