heroes-backend Check out following tutorials to Implement Authentication and Authorization in your Spring Boot and Angular application. Part 1: https://medium.com/@kamleshbadgujar00/secure-spring-boot-angular-9-application-using-keycloak-1-3-b00e801ba693 Part 2: https://medium.com/@kamleshbadgujar00/secure-spring-boot-angular-9-application-using-keycloak-2-3-bf98ba360d66 Part 3: https://medium.com/@kamleshbadgujar00/integrating-angular-application-with-keycloak-3-3-8aee940897e