@deephaven/embed-widget

Embedded Deephaven Widget

This project uses Vite. It is to provide an example React application connecting to Deephaven and displaying a widget.

Running

To start the Embed Widget server, run npm install and npm start in the root directory of this repository. See the Getting Started section for more details.

Query Parameters

• name: Required. The name of the widget to load

Advanced

Application Mode

See the guide for how to set up core in Application Mode: https://deephaven.io/core/docs/how-to-guides/application-mode/

Once Deephaven is running, you can open a widget with a specific name by adding the query param name, e.g. http://localhost:4010/?name=world

Configuring Server Address

By default, this project assumes you are hosting Deephaven with Python on the default port at http://localhost:10000. If Deephaven is running on a different port/server, update the VITE_CORE_API_URL environment variable to point to the correct server. See .env file for the default definition, and vite docs for other ways to set this environment variable.

Changelog

1.8.0 (2025-10-16)

Features

• Column organization overflow and undo/redo (#2546) (5ef19c2)
• DH-16956: Move fontbootstrap from app-utils to components so it can be consumed in DHE (#2545) (c0084cf), closes #1944
• Upgrade to React 18 (#2527) (b369a51)

Bug Fixes

• Accept all HasEventHandling types when creating event Promise (#2550) (e9774ad)
• Add explicit refs to react-transition-group for React 19 support (#2534) (eaa583e)
• DH-20255 Limit maximum depth to serialize redux log data (#2544) (9cd6593)
• DH-20319: Stuck to bottom of table not sticking (#2547) (5216008)
• DH-20500: Links without operators not working (#2541) (cbb4fc5)
• Pass optional expandDescendants arg to setColumnExpanded (#2540) (a19bc11)