Custom theme (.streamlit/config.toml) will not update when I run code

xavi · March 24, 2023, 1:46am

I’m trying to add custom themes to my Heroku app. It might have to do with my setup.sh file I’m using for my Heroku app. Here is that code:

mkdir -p ~/.streamlit/

echo "\
[server]\n\
port = $PORT\n\
enableCORS = false\n\
headless = true\n\
\n\
" > ~/.streamlit/config.toml

I don’t know what this setup.sh file does, I just copied it from the Data Professor tutorial I followed. My Procfile (for Heroku) only says web: sh setup.sh && streamlit run main.py and does not include anything about .streamlit. That might also be an issue. I just have a feeling that Heroku isn’t reading the config.toml. I you know anything about this please lmk.

tonykip · March 24, 2023, 2:30pm

Hi @xavi,

Thanks for posting and welcome to the Streamlit Community forum!

The setup.sh file contents you’ve posted above look okay. The file creates a directory at ~/.steramlit/ as specified by the first line of code and writes a config file config.toml to the directory created by line 1.

Do you have a Procfile setup in your root directory? Procfile specifies that setup.sh be run to configure the app env and then run your streamlit_app.py file. Here’s an example of how it might look:

web: sh setup.sh && streamlit run streamlit_app.py

This is how an example of how the directories might look for your app:

- my_awesome_app/
  - streamlit_app.py
  - Procfile
  - requirements.txt
  - setup.sh
  - .streamlit/
    - config.toml

Let me know if this works.

Happy Streamlit-ing!

xavi · March 25, 2023, 2:59pm

Here is my directory. I hope it looks fine

Thank you @tonykip for the quick response. Please lmk if this looks okay. btw my Procfile contains exactly what it should (web: sh setup.sh && streamlit run main.py)

tonykip · March 27, 2023, 3:48pm

Looks good! Does it work as you need it to?

xavi · March 28, 2023, 9:43pm

No. I tried to change the color and I got this error when it updated.

Can you lmk what this means?

tonykip · March 28, 2023, 9:55pm

Can you share a screen recording or describe how you’re getting to this error?

xavi · March 28, 2023, 10:33pm

Sure here is a screen recording.
Its Discord CDN I hope that works

snehankekre · March 29, 2023, 5:31am

Hi @xavi

It looks like you’re trying to change the contents of config.toml while the app is running.

If changes to .streamlit/config.toml are made while the app is running, the server needs to be restarted for changes to be reflected in the app.

xavi · March 30, 2023, 1:24am

Hello @snehankekre @tonykip!

I tried heroku restart after I pushed my Github changes, it did restart but when I checked the website… nothing happened! I’m not too sure why. Do I need to completely stop the Heroku app and turn it back on when I think the changes save? Remember its not being hosted via my computer locally.

Thank you for replying.

xavi · April 4, 2023, 1:13am

Hey @tonykip and @snehankekre
I’m reaching out again because I am still experiencing issue I you could take a look at the last message I sent that would be greatly appreciated.

xavi · April 4, 2023, 1:31am

When I try to make any changes to my code I get this