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Test of asynchronous flask communication with web page.

This repository is a sample flask application that updates a webpage using a background thread for all users connected. It is based on the very useful Flask-SocketIO code from Miguel Grinberg.

https://github.com/miguelgrinberg/Flask-SocketIO

To use - please clone the repository and then set up your virtual environment using the requirements.txt file with pip and virtualenv. You can achieve this with:

This project has been tested with Python 3.9.

git clone https://github.com/shanealynn/async_flask
cd async_flask
# Create a virtual environment
python3.9 -m venv venv
# Activate that virtual environment
source venv/bin/activate
# Install the project requirements.
pip install -r requirements.txt  #(or in Windows - sometimes python -m pip install -r requirements.txt )

Start the application with:

And visit http://localhost:5000 to see the updating numbers.

15-Jul-2014: Initial Version

19-May-2018: Update to Python3.3

10-Apr-2022:

• Update to Python3.9
• fixes for threading.isAlive() -> threading.is_alive()
• Update socketIO version on Frontend