OData

Open Data Protocol (OData) http://www.odata.org/

''OData is a protocol that makes it simple to produce uniform and easy-to-consume data APIs. OData introduces a set of conventions built on the best practices of current Web technologies and methodologies. OData helps developers build data APIs with a rich query and update feature set that can be consumed by a wide variety of client frameworks.''


 * data consumers, data producers
 * échange de données par HTTP RESTful (GET, PUT, POST, DELETE)
 * formats : JSON, Atom

Libraries
http://www.odata.org/libraries/


 * Node.js http://www.odata.org/libraries/node-js/