The Power & Performance of Phoenix LiveView
summary
Shows how Phoenix LiveView replaces a controller with a LiveView module using mount, handle_info and handle_event, pushes server-rendered diffs over websockets with little or no JavaScript, and wires a simple pub/sub fake repo for realtime updates. Demonstrates live comments with phx hooks and uses temporary assigns to avoid holding chat history in memory. Scales to an S&P 500 table updated at 200 ms (≈5×/s) with efficient diffs and low error logs.
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