https://www.javaguides.net/2021/08/angular-12-spring-boot-crud-example.html
https://www.javaguides.net/2021/08/angular-crud-example-with-spring-boot.html
sourcecodeexamples/angular-springboot-crud-example
https://www.javaguides.net/2021/08/angular-12-spring-boot-crud-example.html
TypeScript