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C++ Reactive Programming

You're reading from   C++ Reactive Programming Design concurrent and asynchronous applications using the RxCpp library and Modern C++17

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Product type Paperback
Published in Jun 2018
Publisher Packt
ISBN-13 9781788629775
Length 348 pages
Edition 1st Edition
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Authors (2):
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Peter Abraham Peter Abraham
Author Profile Icon Peter Abraham
Peter Abraham
Praseed Pai Praseed Pai
Author Profile Icon Praseed Pai
Praseed Pai
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Table of Contents (15) Chapters Close

Preface 1. Reactive Programming Model – Overview and History FREE CHAPTER 2. A Tour of Modern C++ and its Key Idioms 3. Language-Level Concurrency and Parallelism in C++ 4. Asynchronous and Lock-Free Programming in C++ 5. Introduction to Observables 6. Introduction to Event Stream Programming Using C++ 7. Introduction to Data Flow Computation and the RxCpp Library 8. RxCpp – the Key Elements 9. Reactive GUI Programming Using Qt/C++ 10. Creating Custom Operators in RxCpp 11. Design Patterns and Idioms for C++ Rx Programming 12. Reactive Microservices Using C++ 13. Advanced Streams and Handling Errors 14. Other Books You May Enjoy

RxCpp error and exception handling Operators

In a real-world scenario, no system is perfect. As we discussed in the previous section, resilience is one of the qualities of a reactive system. How a system handles errors and exceptions decides the future of that system. Early detection and the seamless handling of errors makes a system consistent and responsive. Compared to imperative programming approaches, the reactive programming model helps the user to handle errors separately, as and when the system detects an error or throws an exception.

In this section, we will take a look at how to handle exceptions and errors by using the RxCpp library. There are a variety of RxCpp Operators that can be used to react to on_error notifications from Observables. For instance, we might:

  • Handle the error by exiting from the sequence gracefully
  • Ignore the error and switch over to a backup...
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