Oracle REST Data Services 21.4 available!
Oracle REST Data Services
Oracle REST Data Services (ORDS) bridges HTTPS and your Oracle Database. A mid-tier Java application, ORDS provides a Database Management REST API, SQL Developer Web, a PL/SQL Gateway, SODA for REST, and the ability to publish RESTful Web Services for interacting with the data and stored procedures in your Oracle Database.
"We went with ORDS as our main API layer when we moved from traditional SOAP/XML services to REST/JSON in our electronic procurement solutions. Our experience there led us to choose ORDS as the main environment for all new projects and have started to rewrite our legacy JSP projects to ORDS." - Ólafur Tryggvason Product Owner and Developer at Advania
https://www.oracle.com/database/technologies/appdev/rest-data-services-downloads.html