Static json file serving

Using Streamlit
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1

Hi experts,
I have published an app on Streamlit Cloud and I would like to expose a JSON file that the application generates based on user input. This file should then be rendered by a third-party app and embedded in my app through an iFrame.

Example:

navigator_url = f"https://third-party-app/#layerURL={json_url}"  
st.markdown(f'<iframe src="{navigator_url}" width="100%" height="600px"></iframe>', unsafe_allow_html=True)

The json file (json_url) is not persistent and is only valid for the current user session.

How to serve my json file in Streamlit cloud?

Thank you

2

If you need to serve files for users, the most straightforward way is to use Static file serving. You can create and destroy your JSON files in the appropriate directory. This wouldn’t be secure, of course. You can use something like Named temporary files to manage creating and clearing files in the appropriate directory.

3

Thanks, I enabled this feature by setting up env variable in my VSC codespace. How to enable it in Streamlit cloud?

4

It works with my local istance but not in Streamlit cloud. I use this setting:

image
image1327Ă—886 40 KB

Is it correct?
Thank you

5

It’s enabled through your config.toml file and that screenshot is only for secrets.toml. You’ll need to save your config file into your repo. Since Streamlit Community Cloud executes streamlit run from the root of your repo, add a .streamlit directory to the root of your repo. Your config.toml file should be saved in that .streamlit directory. (Regardless of where your main app file lives in your repository, your configuration file should always be in .streamlit/config.toml in the root of your repository for Community Cloud to see it.)

1 Like
6

This is my config.toml
image
but I haven’t resolved the problem yet
image

any idea?