Phoenix currently supports pretty-printing and compact display of JSON in the UI, including truncation and single-key collapsing, but it does not natively provide a full-featured expandable/collapsible JSON viewer (like tree view with expand/collapse per key) as of now. There are open feature requests and ongoing discussions to add such functionality, including syntax highlighting and collapsible subtrees, but this is not yet implemented in the main UI <https://github.com/Arize-ai/phoenix/issues/8433|[github enhancement #8433>].
The current implementation uses components like `CompactJSONCell` and `JSONText` to render JSON in a compact or truncated form, and will show just the string if the JSON object has a single key, but does not support interactive expansion/collapse of nested keys <https://github.com/Arize-ai/phoenix/blob/main/app/src/components/table/CompactJSONCell.tsx|[CompactJSONCell.tsx>, <https://github.com/Arize-ai/phoenix/blob/main/app/src/components/code/JSONText.tsx|JSONText.tsx>]. Would you like more detail on the current rendering logic or the status of the enhancement request?
Sources:
- <https://github.com/Arize-ai/phoenix/issues/8433|github enhancement #8433>
- <https://github.com/Arize-ai/phoenix/blob/main/app/src/components/table/CompactJSONCell.tsx|CompactJSONCell.tsx>
- <https://github.com/Arize-ai/phoenix/blob/main/app/src/components/code/JSONText.tsx|JSONText.tsx>
