Click event on maps with Folium and information retrieval

Question

I was wondering if there is a way in Folium to get the information on an entity we click on with Folium?

I'd like the map to either open a tab with the attribute information or just send back information on the entity selected without necessarily using a popup.

Answer 1

There seems to not be support for this in Folium as yet. Quoting from the issue regarding dynamically change/update markers:

"It's import(ant) to understand that folium generates the html with Leaflet javascript. So anything that happens on the map after generation is outside of folium's scope"

See here for more detail

Answer 2

You can use GeoJsonTooltip to show selected fields from a GeoDataFrame.

usmap = folium.Map(
    location=[40,-95],
    tiles='cartodbpositron',
    zoom_start=5,
    control_scale=True
)

folium.GeoJson(
    states[['STATE_NAME', 'geometry']].to_json(),
    name='States',
    show=True,
    style_function=lambda x: {
        'fillColor': 'lightblue',
        'color': 'black',
        'weight': 1,
        'fillOpacity':0.7
    },
    highlight_function=lambda x: {
        'fillOpacity':1
    },
    tooltip=folium.features.GeoJsonTooltip(
        fields=['STATE_NAME'],
        aliases=['State name:'],
    ),
).add_to(usmap)