Style function not working when soley add to 'feature_group_to_add' parameter

[KeonwooChoi]

Hello Im gonna using feature_group_to_add param rathern than add to map directly because of loading speed.

But I found that I have to add feature group to map before using st_folium. And it also causing slow speed. Here's my code

This code works, but slow

  map = folium.Map(location=[37.552213, 127.011354], zoom_start=10)
  fg = folium.FeatureGroup()
  folium.GeoJson(
            geo_json,
            style_function=lambda x:{'fillColor':'red'},
        ).add_to(fg)

  map.add_child(fg)

  out = st_folium(
      map ,
      feature_group_to_add=fg
  )

This code not works

  map = folium.Map(location=[37.552213, 127.011354], zoom_start=10)
  fg = folium.FeatureGroup()
  folium.GeoJson(
            geo_json,
            style_function=lambda x:{'fillColor':'red'},
        ).add_to(fg)

  out = st_folium(
      map ,
      feature_group_to_add=fg
  )

[csipapicsa]

same problem in here. When I try to load the styles, it doesnt work, but when it is written there it is ok

style=LAYERSTYLE[k]

ma.m2.add_child(layers[k].add_child(folium.GeoJson(data=files[k], style_function=lambda x: style))) # every layer has an default orange color

ma.m2.add_child(layers[k].add_child(folium.GeoJson(data=files[k], style_function=lambda x:{"fillColor": "green"}))) # this is works.

Even I get "make this notebook trusted" message

Quite strange: When I define the style dict in the "bla" it works, when I load it it is not

This is ok:
bla = {"fillColor": "green"}
ma.m2.add_child(layers[k].add_child(folium.GeoJson(data=files[k], style_function=lambda x:bla)))

This is still not:
style = LAYERSTYLE[k]
ma.m2.add_child(layers[k].add_child(folium.GeoJson(data=files[k], style_function=lambda x:style)))

[TaylerUva]

I am having the same issue. It's a deal breaker for if I'm able to use streamlit or not

[BastienGauthier]

Same here, which prevent me from using Choropleth.

Use case : I was hoping that the "feature_group_to_add" could help me with Choropleth updates given a slider.

[patrontheo]

Hey, @KeonwooChoi, @csipapicsa, @TaylerUva, @BastienGauthier This has been solved in the latest PR. (see #146 )