Schedule a task in a Flask app

flask-ap-scheduler.py

# useful https://stackoverflow.com/questions/21214270/how-to-schedule-a-function-to-run-every-hour-on-flask
# docs https://pypi.org/project/Flask-APScheduler/

from flask import Flask
from flask_apscheduler import APScheduler

app = Flask(__name__)
scheduler = APScheduler()

def scheduleTask():
    print("This test runs every 3 seconds")

if __name__ == '__main__':
    scheduler.add_job(id = 'Scheduled Task', func=scheduleTask, trigger="interval", seconds=3)
    scheduler.start()
    app.run(host="0.0.0.0")