Channel Error Handling
Understand how Phoenix Channels handle errors during long-lived connections and learn strategies to manage crashes and disconnections effectively. Explore fault tolerance in channels and sockets to keep real-time applications stable, even when some channels crash or clients disconnect. This lesson helps you troubleshoot common issues and ensure resilient communication in your Phoenix web apps.
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Channel errors
A significant difference between a traditional web Controller and a Channel is that the Channel is long-lived. In a perfect world, a Channel will live for the entire life of the connection without being interrupted. But we don’t live in an ideal world, and disconnections will occur in our application. They may occur because of a bug in our application causing a crash or because the client’s internet connection is not stable. Let’s cause a crash in our PingChannel to observe what happens.
Our previously working ...