The C++ REST SDK, originally developed under the Microsoft code name “Casablanca,” is a cross-platform, open-source library designed to simplify cloud-based client-server communication. It allows C++ developers to interact with modern RESTful web services using native code and an asynchronous API architecture. Core Architectural Components
The Casablanca SDK is built around a few essential building blocks designed for high performance and responsiveness:
HTTP Client and Listener: The http_client sends requests to REST endpoints, while the http_listener enables your C++ application to act as a lightweight HTTP server.
Asynchronous Tasks: Casablanca relies heavily on the Parallel Patterns Library (PPLx). Instead of blocking threads during network I/O, functions return pplx::task objects that resolve once the network response is received.
JSON Parsing and Serialization: It features a robust, built-in web::json::value class for manipulating JSON objects without external third-party dependencies.
URI and URI Builder: Utility classes (web::uri and web::uri_builder) safely format, construct, and validate structured uniform resource identifiers.
Asynchronous Streams: Stream buffers permit the non-blocking read and write of raw bytes directly to memory arrays or local files. Key Features and Cross-Platform Design
Casablanca leverages modern C++ design principles to maximize hardware efficiency across different target environments. 1. Multi-Platform Support
Casablanca abstracts low-level operating system network abstractions. On Windows, it communicates through native HTTP services like WinHTTP. On Linux, macOS, iOS, and Android, it leverages Boost.Asio to manage network sockets efficiently. 2. Platform-Independent Strings
To handle the differences between Windows (which favors wide strings) and Unix-based environments (which favor UTF-8), Casablanca uses a dedicated macro system: Reddit·r/cpp
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