Using custom Json topography for a choropleth charts

Hi all,

We’re trying to use the plotly-react wrapper to create a choropleth map component that can be fed a custom json file to draw maps other than the world or the states.

I’ve been Googling this and have seen the scattermapbox examples but have had little luck replicating this for our needs.

Is this currently supported with ploltly? If so, can anyone link me to a working example?