Real-Time Phoenix

Chapter 5Dive Deep into Phoenix Channels

In the last chapter, you learned how to restrict access to a Channel-based application using authentication. We’ve covered enough to build basic Channel applications, but there’s still more you need to know to build full-featured Channel applications. In this chapter, we’re going to look at concepts such as Channels in a cluster of servers, how to customize Channel behavior, and how to write tests for Channels.

We’ll first cover the unreliable nature of internet connections and consider how we can build applications that survive the strange things that can happen with real users. Flaky internet connections, bugs in an application, and server restarts can all lead to connection trouble for users.

You’ll ...