A RESTful API is one that conforms to the REST constraints. You can build RESTful APIs using many different programming languages.

API ping-pong These two teams must work together to develop a REST API that connects the back-end data sources to the client application.

ASP.NET Core makes building RESTful services easy and comfortable, says Joydip Kanjilal, who shows how to do just that in this article, complete with code samples and screenshots.