Restlet

RESTlet is a Java library that simplifies the development of RESTful web services. It provides a lightweight and intuitive framework that follows the principles of REST (Representational State Transfer). RESTlet abstracts away much of the complexity typically associated with HTTP and web service development, allowing developers to focus on the business logic of their applications.

The core concept in RESTlet is the "Restlet" component itself, which acts as a handler for incoming HTTP requests. These Restlets can be chained together to form complex application architectures. The framework defines a clear separation of concerns, distinguishing between the server-side implementation of RESTful resources and the client-side consumption of these resources.

RESTlet supports various HTTP methods (GET, POST, PUT, DELETE, etc.) and can be deployed in different environments, including standalone Java applications, servlet containers like Tomcat or Jetty, and even within OSGi bundles. It also offers built-in support for content negotiation, enabling clients and servers to agree on the representation format of data, such as XML or JSON. The library aims to provide a productive and efficient way to build scalable and maintainable web APIs.