Phoenix Tracker vs. Presence
Explore the functionalities of Phoenix Tracker and Presence, and understand when to use each for real-time data updates. This lesson helps you decide the best approach for broadcasting changes, optimizing data flow, and managing client-side state in Phoenix applications.
We'll cover the following...
We'll cover the following...
Presence
Phoenix Presence is an implementation of Tracker that provides helper functions for working with Channels. Its implementation of handle_diff/2 broadcasts changes locally using PubSub when a process joins or leaves the Tracker. Clients listen for change messages and process them to keep a client-side version of the Tracker ...