SAP WORLDBegining of New ERP World

The route to the app (screenshot: SAP) 

REST Architecture

REST – or Representational State Transfer – used with Gateway is a software architecture concept for implementing Web services. The biggest REST application is the World Wide Web itself; and Amazon, Twitter, and Google apps are also built using it. The architecture is based exclusively on four commands: GET, POST, PUT, and DELETE. Compared with the network protocol SOAP (Simple Object Access Protocol), this simple structure ensures ease of use when working with content.

RESTful Web services can receive data as HTML or XML versions. In the case of Gateway, the Atom is used as standard. This comprises the Atom Publishing Protocol– or AtomPub for short – and the Atom Syndication Format (ASF). ASF is an XML language used for Web feeds similar to RSS and enables platform-independent exchange of information. This isn’t sufficient for business apps, because the content changes constantly, so AtomPub is used to process incoming data. The data finds its way to the developer using SAP’s data protocol, which is based on OData and can read JSON (JavaScript Object Notation) as well as Atom.

Source : SAPINFO