flask-jobs 1.0.14

An easy job scheduling interface for flask projects.

An easy job scheduling interface for flask projects.

Install

pip install flask_jobs

Example Flask Project

import datetime
import time

from flask import Flask, render_template, redirect
from flask_jobs import JobScheduler

app = Flask('JobApp')
jobs = JobScheduler(
    app,
    SERVER_HOST_URL='https://mysite.com/', # only required for linux
    deleteOldJobs=False,# whether to keep old jobs in the database
    )


def Callback(*a, **k):
    print('Callback(', a, k)


@app.route('/')
def Index():
    return render_template(
        'index.html',
        jobs=jobs.GetJobs(),
        utcnow=datetime.datetime.utcnow(),
    )


@app.route('/add_now_job')
def NowJob():
    # Schedule a job to happen ASAP
    jobs.AddJob(
        func=Callback,
        args=('Now Job now={}'.format(datetime.datetime.utcnow()),),
        kwargs={'one': 'won', 'two': 'too'},
        name='Now Job at {}'.format(time.asctime())
    )
    return redirect('/')


@app.route('/add_later_job')
def LaterJob():
    # Schedule a job to happen once in the future
    dt = datetime.datetime.utcnow() + datetime.timedelta(seconds=5)
    jobs.ScheduleJob(
        dt=dt,
        func=Callback,
        args=('ScheduleJob now={}, dt={}'.format(
            datetime.datetime.utcnow(),
            dt
        ),),
        kwargs={'one': 'won', 'two': 'too'},
        name='ScheduleJob Job at {}'.format(time.asctime())
    )
    return redirect('/')


@app.route('/add_repeat_job')
def Repeat():
    # Schedule a job to repeat at the given interval
    dt = datetime.datetime.utcnow()
    jobs.RepeatJob(
        startDT=dt, # The first time to run (None if you want to start right now)
        func=Callback,
        args=('RepeatJob now={}, dt={}'.format(
            datetime.datetime.utcnow(),
            dt
        ),),
        kwargs={'one': 'won', 'two': 'too'},
        name='RepeatJob Job at {}'.format(time.asctime()),
        seconds=10, # can also pass "weeks", "days", "minutes", "hours"
    )
    return redirect('/')


@app.route('/delete/<ID>')
def Delete(ID):
    job = jobs.GetJob(int(ID))
    job.Delete()
    return redirect('/')


if __name__ == '__main__':
    app.run(
        debug=True,
        threaded=True,
    )

Notes

On Linux, a cron job is automatically created that runs once per minute. This could lead to your ScheduleJob() and RepeatJob() being delayed by up to 1 minute. AddJob() will always be executed ASAP.