Angular 4 Step by Step

http://adrianmejia.com/blog/2016/10/01/Angular-2-Tutorial-Create-a-CRUD-App-with-Angular-CLI-and-TypeScript/

https://www.concretepage.com/angular-2/angular-4-crud-example

http://www.dotnetcurry.com/angularjs/1380/angular-4-grid-crud

https://mydevgeek.com/angular-4-crud-application-with-spring-boot-rest-service-part-1/