Serving Flask app with waitress on windows

Question

I am able to run a webserver using the following code

from flask import Flask
from waitress import serve

app = Flask(__name__, static_url_path='/static')
...
serve(app, port=8080)

The problem is that I can access it only from the machine where it is running, if I try to access it using the ipv4 ip, it doesn't work. Am I missing a step?

Answer 1

Simple example,try it!
I hope it will help you.

app1.py

from flask import Flask app = Flask(__name__) # app.run(host='0.0.0.0', port=8080,debug=True) 

waitress_server.py

from waitress import serve import app1 serve(app1.app, host='0.0.0.0', port=8080) 

Then run below command

python waitress_server.py  

Answer 2

Waitress now provides a simple command line Utility called waitress-serve for running the Flask Application. Please note that this answer is valid for Waitress 1.30. The command line arguments could change in future.

If your Flask application is called myapplication and the method which instantiates your application is called create_app, then you can simply use:-

waitress-serve --call "myapplication:create_app"

This command will launch the server listening on port 8080 by default.

If you wish to launch it on port 80 (http), then all you need to do is:

waitress-serve --port=80 --call "myapplication:create_app"

NB: click on the image if it's not very clear.

Waitress serve command line arguments.

Flask 1.0 production deployment tutorial.

Answer 3

Try using

serve(app, host='0.0.0.0', port=8080)