Use in Streamlit ?

[Elmetayer]

I was wondering if it is possible to use the library out of notebooks and in "standalone" applications, such as for example Streamlit ?

[kylebarron]

I'm not familiar with Streamlit, so I can't give any direct advice.

In general, you can use to_html to export a map as static HTML. Maybe that will help?

[cboettig]

Thanks, just chiming in here that I'd love to see this as well. Streamlit is an extremely popular simple python framework for reactive apps and a first-class citizen on huggingface spaces, and streamlit already uses deck.gl / pydeck as the default mapping engine for it's map.

I think we can get pretty far with to_html(), but it looks like there is already at least third party support for bi-directional communication, e.g. in streamlit-deckgl. Bi-directional support opens up a lot of possibilities for a web-based app, e.g. compare to the bi-directional input on folium maps for streamlit. This lets us write reactive python apps that can respond to user interactions with the map such as the drawing tools, etc.

[kylebarron]

third party support for bi-directional communication, e.g. in streamlit-deckgl

I took a quick look at its source (it's not clear if it's hosted on github anywhere), and it looks like it injects its own custom HTML and JS into the streamlit component. I'd say this is out of scope for lonboard itself, but I'd be supportive of anyone else who wants to write this connector.

Bi-directional support opens up a lot of possibilities for a web-based app

I do agree, but it would be simpler if streamlit offered first-class support for jupyter widgets. E.g. I have a specific example to integrate with shiny, which is in-scope because shiny supports widgets directly (even reactively!), so I don't have to write a custom connector.