Book Image

C++ Reactive Programming

By : Praseed Pai, Peter Abraham
Book Image

C++ Reactive Programming

By: Praseed Pai, Peter Abraham

Overview of this book

Reactive programming is an effective way to build highly responsive applications with an easy-to-maintain code base. This book covers the essential functional reactive concepts that will help you build highly concurrent, event-driven, and asynchronous applications in a simpler and less error-prone way. C++ Reactive Programming begins with a discussion on how event processing was undertaken by different programming systems earlier. After a brisk introduction to modern C++ (C++17), you’ll be taken through language-level concurrency and the lock-free programming model to set the stage for our foray into the Functional Programming model. Following this, you’ll be introduced to RxCpp and its programming model. You’ll be able to gain deep insights into the RxCpp library, which facilitates reactive programming. You’ll learn how to deal with reactive programming using Qt/C++ (for the desktop) and C++ microservices for the Web. By the end of the book, you will be well versed with advanced reactive programming concepts in modern C++ (C++17).
Table of Contents (20 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

The C++ REST SDK


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 toolkit aims to help C++ developers connect to and interact with HTTP based services. The SDK has the following features that help you to write robust services:

  • HTTP client/server
  • JSON support
  • Asynchronous streams
  • WebSocket's client
  • oAuth support

The C++ REST SDK relies on the parallel patterns library's task API. The PPL tasks is a powerful model for composing asynchronous operations based on modern C++ features. The C++ REST SDK supports Windows desktop, Windows Store (UWP), Linux, macOS, Unix, iOS, and Android.

HTTP client programming using the C++ REST SDK

The C++ REST SDK programming model is inherently  asynchronous in nature, and we can invoke the API calls in a synchronous manner as well. The following program will demonstrate how we can invoke HTTP client API calls asynchronously. The program demonstrates workings of the client...