How to do dynamic subdomain handling on flask?

Question

Python

Let the domain be domain.com

I have a web server on flask located at localhost:8080.
There is also nginx.

The whole thing is hidden under cloudflare and works great, but I need users to be able to add their own pages like page.domain.com, and at the same time flask handles it adequately. Googling, I found out that flask can do this:

@app.route('/somepage', subdomain='<subdomain>')
def handler(subdomain):
...

I tried, but the requests do not go through (well, that is, the page is simply not available in the browser). I also tried adding the following to the nginx config:

server {
    listen 80;
    server_name *.domain.com;

    location / {
        proxy_pass http://localhost:8080;
    }
}

But still to no avail. I hope for your help...

Answer 1

https://stackoverflow.com/questions/7512698/flask-...
see about hosts there

Answer 2

Looks like Futura and pragmatics condensed bold