app.py

import uvicorn
from fastapi import FastAPI
from fastapi.middleware.wsgi import WSGIMiddleware

from dashapp import create_dash_app

app = FastAPI()


@app.get("/")
def read_main():
    return {
        "routes": [
            {"method": "GET", "path": "/", "summary": "Landing"},
            {"method": "GET", "path": "/status", "summary": "App status"},
            {"method": "GET", "path": "/dash", "summary": "Sub-mounted Dash application"},
        ]
    }


@app.get("/status")
def get_status():
    return {"status": "ok"}


# A bit odd, but the only way I've been able to get prefixing of the Dash app
# to work is by allowing the Dash/Flask app to prefix itself, then mounting
# it to root
dash_app = create_dash_app(requests_pathname_prefix="/dash/")
app.mount("/dash", WSGIMiddleware(dash_app.server))


if __name__ == "__main__":
    uvicorn.run(app, port=8000)