Reactlog 2.0 Debugging the state of Shiny
summary
Reactlog 2.0 records a live directed dependency graph of a Shiny app using cytoscape.js and lets you step forward and backward through reactivity history to find missing edges and rogue isolate calls that leave outputs nonupdating. It shows searchable, filterable trees, handles apps that exceed 2,000 reactive elements, and exposes when outputs are invalidated versus recalculated. It is a reactivity debugger not a profiler, not for production, and plans include session separation and collapsible render groups.
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chapters (7)
- 0:00Intro
- 0:33Overview
- 2:16What is Reactlog
- 3:26Setting up Reactlog
- 5:23Pythagoras Theorem
- 11:19Demo
- 15:38Future Ideas
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