Simple Bank server

Server app for 'Simple Bank' organization. Contains some features like:

• account information
• balance of the account with the operations history
• information about cards and executed operations with them
• information about loans which user have

Implementation leverages:

• Java 21
• Spring Framework 6.x
• Spring Security 6.x
• Spring Boot 3.4.1
• JWT 0.12.6
• Lombok 1.18.36
• Spring Security's OAuth2 resource server features
• Spring Data JPA
• Spring Data JDBC
• MySQL driver

Server can be run with 3 profiles (in case you do not specify the active profile, then marked as [default] will be selected):

• [default] auth-and-resource-server Spring backend plays here two roles:
  • authorization server - issuing and validating JSON Web Tokens (JWT)
  • resource server - providing resources
• keycloak-auth-server - Spring backend plays resource server role
  • Keycloak is the authorization server here (separate configuration of Keycloak is required beforehand)
• spring-auth-server - Spring backend plays resource server role
  • Spring Authorization Server is the authorization server. I used my implementation of Spring Auth server