Skip to content

[P3] Support raw Vega-Lite specs in Dataface YAML

Problem

Dataface's chart abstraction layer covers common visualization patterns but cannot express every Vega-Lite capability, leaving power users with no escape hatch when they need a custom encoding, transform, or interaction that the abstraction doesn't support. Today the only workaround is to abandon Dataface entirely and build the chart outside the dashboard system, losing query integration, variable binding, and consistent styling. Supporting raw Vega-Lite spec blocks inline within Dataface YAML would let advanced users drop down to the full Vega-Lite grammar while still participating in the Dataface pipeline for data, theming, and layout.

Context

Possible Solutions

Plan

  • Define YAML syntax for raw spec blocks and interaction with Dataface fields.
  • Implement validation and fallback error messages for malformed specs.
  • Integrate raw spec handling into render and export pipelines.
  • Add test fixtures for mixed dashboards and failure scenarios.
  • Document when to use raw specs vs native Dataface chart definitions.

Implementation Progress

Review Feedback

  • Review cleared