Deployment instructions are going to be based on your chosen backend.

For example, if you use the Flask or Django backend and want to deploy via Azure, a tutorial like this would describe the process:
https://learn.microsoft.com/en-us/azure/app-service/tutorial-python-postgresql-app?tabs=flask%2Cwindows

I did try the fastapi in deta-space (not a reactpy) from this guide. It worked.

Then I tried the reactpy sample code for fastapi or the code below.

main.py

from reactpy import component, html
from reactpy.backend.fastapi import configure
from fastapi import FastAPI # missing in official sample code.
@component
def HelloWorld():
 return html.h1("Hello, world!")
app = FastAPI()
configure(app, HelloWorld)

But I got nothing. There was no Hello, world! displayed.

The project myreactpy log in deta-space does not indicate any errors.

And this is my Spacefile for deta-space. Typical for fastapi use.

v: 0
micros:
 - name: myreactpy
 src: .
 engine: python3.9
 run: uvicorn main:app

Deployment instructions are going to be based on your chosen backend.

For example, if you use the Flask or Django backend and want to deploy via Azure, a tutorial like this would describe the process: https://learn.microsoft.com/en-us/azure/app-service/tutorial-python-postgresql-app?tabs=flask%2Cwindows

I can't register in azure at the moment.

I will try gcp instead as I already have an account on it.

The interactive examples in the docs are backed by Heroku:

• Dockerfile
• GH Action for Deployment

I tried GCP, fastapi worked, but reactpy on fastapi backend did not work.

I also found you can deploy reactpy using a docker image. It works for platforms that don't support websockets.