The Design and Implementation of laffer1

Here are some interesting links I found for etags.

http://www.baeldung.com/etags-for-rest-with-spring

https://stackoverflow.com/questions/40950005/how-to-embbed-etags-into-crud-api-in-spring-boot

http://docs.spring.io/spring-framework/docs/current/spring-framework-reference/html/mvc.html#mvc-caching-etag-lastmodified

https://github.com/pglebow/rest-data