Can't connect to Flask web service, connection refused

Question

I\'m trying to run a simple web server on a Raspberry Pi with Flask. When I run my Flask app, it says:

running on http://127.0.0.1:5000/

Answer 1

You will have to run the development server such that it listens to requests on all interfaces and not just the local one

Ask Flask to listen on 0.0.0.0:PORT_NUMBER

or any other port you may choose