Restbed
Restbed framework brings asynchronous RESTful functionality
...Server-Sent Events enable efficient server-to-client streaming of text-based event data—e.g., real-time notifications or updates generated on the server. A technique allowing multiple HTTP requests to be sent on a single TCP connection without waiting for the corresponding responses. Asynchronous single or multi-threaded architecture, capable of addressing the C10K problem. High-quality documentation covering the architecture and API. Filter incoming HTTP requests by headers. Customize how and where log entries are created. Give a resource multiple paths for improved readability.