The C++ REST SDK is a Microsoft project for cloud-based client-server
communication in native code using a modern asynchronous C++ API design.
This project aims to help C++ developers connect to and interact with services.

What's in the SDK:

- Features
  HTTP client/server, JSON, URI, asynchronous streams, WebSockets client, oAuth

- PPL Tasks
  A powerful model for composing asynchronous operations based on C++11 features

- Platforms
  Windows desktop, Windows Store, Windows Phone, Ubuntu, OS X, iOS, and Android
  [and now also FreeBSD ;-)]

WWW: https://github.com/Microsoft/cpprestsdk