Give users the real-time experience they expect, by using Elixir and Phoenix Channels to build applications that instantly react to changes and reflect the application’s true state. Learn how Elixir and Phoenix make it easy and enjoyable to create real-time applications that scale to a large number of users. Apply system design and development best practices to create applications that are easy to maintain. Gain confidence by learning how to break your applications before your users do. Deploy applications with minimized resource use and maximized performance.

Real-time applications come with real challenges—persistent connections, multi-server deployment, and strict performance requirements are just a few. Don’t try to solve these challenges by yourself—use a framework that handles them for you. Elixir and Phoenix Channels provide a solid foundation on which to build stable and scalable real-time applications. Build applications that thrive for years to come with the best practices found in this book.

Understand the magic of real-time communication by inspecting the WebSocket protocol in action. Avoid performance pitfalls early in the development lifecycle with a catalog of common problems and their solutions. Leverage GenStage to build a data pipeline that improves scalability. Break your application before your users do and deploy with confidence. Build a real-world project using solid application design and testing practices that help make future changes a breeze. Create distributed apps that can scale to many users with tools like Phoenix Tracker. Deploy and monitor your application with confidence and reduce outages.

Deliver an exceptional real-time experience to your users, with easy maintenance, reduced operational costs, and maximized performance, using Elixir and Phoenix Channels.

通过使用Elixir和Phoenix通道来构建能对变化做出即时反应并反映应用程序真实状态的应用程序，给用户带来他们所期望的实时体验。了解Elixir和Phoenix如何轻松愉快地创建可扩展到大量用户的实时应用程序。应用系统设计和开发的最佳实践，创建易于维护的应用程序。通过学习如何在用户之前破坏你的应用程序来获得信心。以最小的资源使用和最大的性能部署应用程序。

实时应用程序面临着真正的挑战--持久连接、多服务器部署和严格的性能要求，这只是其中的一部分。不要试图自己解决这些挑战--使用一个能为你处理这些问题的框架。Elixir和Phoenix Channels提供了一个坚实的基础，在此基础上建立稳定和可扩展的实时应用程序。利用本书中的最佳实践，构建能够在未来数年内蓬勃发展的应用程序。

通过检查WebSocket协议的运行情况，了解实时通信的魅力。通过常见问题及其解决方案的目录，在开发生命周期的早期避免性能陷阱。利用GenStage建立一个数据管道，以提高可扩展性。在你的用户之前打破你的应用程序，并自信地进行部署。使用坚实的应用程序设计和测试实践建立一个真实世界的项目，这有助于使未来的变化变得轻而易举。利用Phoenix Tracker等工具创建可扩展到许多用户的分布式应用。满怀信心地部署和监控您的应用，减少中断。

使用Elixir和Phoenix Channels，向你的用户提供卓越的实时体验，使其易于维护，降低运营成本，并使性能最大化。