(ui-return-geojson)= # GeoJson Returning a {class}`~dasf_exb.return_models.GeoJson` in your backend function requires a connection of the DASF widget to a map. The map will then visualize the GeoJson. An example implementation is given in the {func}`dasf_exb.backend.get_geodataset` function, and here is an example of this functions `geoda.nyc` dataset