Cant Preview Application

[Angitha101]

im not able to preview the app when im using it locally. Could you explain in detail what are the mandatory configurations needed for previewing it and the steps to do so? I only hae openai key, so im using openai everywhere instead of anthropic

[sshh12]

This file has all the potential config fields: https://raw.githubusercontent.com/sshh12/prompt-stack/refs/heads/main/backend/config.py

I think the main one you are missing is

MODAL_TOKEN_ID = os.getenv("MODAL_TOKEN_ID")
MODAL_TOKEN_SECRET = os.getenv("MODAL_TOKEN_SECRET")

You have to create an account on modal.com (should be free) and get tokens https://modal.com/settings/sshh12/tokens

[sshh12]

Feel free to share any error logs you see when you run python main.py

[Angitha101]

hi, i wanted to know, if i had to add another tech stack like fastapi, what are the steps i need to take? I wanted to what do we need to give for "_SETUP_COMMON_CMD" in that case? also particularly what is the basis for creation of the packages that need to be added to "from_registry"?

[sshh12]

Hey! you really just have to define an image + boilerplate like these: https://github.com/sshh12/spark-stack/tree/main/images

Happy to help add one for fastapi -- the main blocker rn is that you need a way to preview (with auto reload) both the backend and frontend over the same port. This might require also running nginx in the same container so it gets a bit more complicated.