[STREAMLIT] Demo interface for applications

[blythed]

Users should be able to serve multiple demos for a range of applications in their deployment/ db. These demos should not
need to be prespecified at a set path, but should be "installable" in some sense.

Here is an example where we can toggle between multiple views in a single interface:

import streamlit as st

# Function for the first page
def page_one():
    st.title("Page One")
    st.write("Welcome to Page One!")
    st.write("Here is some content specific to the first page.")

# Function for the second page
def page_two():
    st.title("Page Two")
    st.write("Welcome to Page Two!")
    st.write("Here is some content specific to the second page.")

# Function for the third page
def page_three():
    st.title("Page Three")
    st.write("Welcome to Page Three!")
    st.write("Here is some content specific to the third page.")

# Main app
def main():
    st.sidebar.title("Navigation")
    page = st.sidebar.selectbox("Choose a page:", ["Page One", "Page Two", "Page Three"])
    
    # Display the selected page
    if page == "Page One":
        page_one()
    elif page == "Page Two":
        page_two()
    elif page == "Page Three":
        page_three()

if __name__ == "__main__":
    main()

In our implementation, the pages will come from the saved streamlit components/ applications. The functions will be saved as references and/ or artifacts in some way. This will mean that the main function needs to take db as a parameter.

• [STREAMLIT] Implement skeleton application #2406
• [STREAMLIT] Implement Streamlit component #2407
• superduper-io/superduper-services#151
• superduper-io/superduper-services#152
• superduper-io/superduper-services#153
• superduper-io/superduper-services#208

[blythed]

This code creates a demo per app, which can be used with <var:...> to go to Template.

class Streamlit(Component)
    type_id: t.ClassVar[str] = 'streamlit'
    kwargs: t.Dict = {}
    render_func = ...
    
    def render(self):
        # create app
        ...


if __name__ == '__main__':
    app = db.load('application', sys.arg[1])
    demo = next(c for c in app.components if c.type_id == 'streamlit')
    demo.render().run()

Now we a service on the distributed system, which should run all demos.