switchio

asyncio powered FreeSWITCH cluster control

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switchio

asyncio powered FreeSWITCH cluster control using pure Python_ 3.6+

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.. |versions| image:: https://img.shields.io/pypi/pyversions/switchio.svg :target: https://pypi.org/project/switchio .. |pypi| image:: https://img.shields.io/pypi/v/switchio.svg :target: https://pypi.org/project/switchio .. |github_actions| image:: https://github.com/friends-of-freeswitch/switchio/actions/workflows/python-app.yml/badge.svg :target: https://github.com/friends-of-freeswitch/switchio/actions/workflows/python-app.yml .. |license| image:: https://img.shields.io/pypi/l/switchio.svg :target: https://pypi.org/project/switchio .. |docs| image:: https://readthedocs.org/projects/switchio/badge/?version=latest :target: http://switchio.readthedocs.io

switchio (pronounced Switch Ee OoH) is the next evolution of switchy (think Bulbasaur -> Ivysaur) which leverages modern Python's new native coroutine syntax and, for now, asyncio_.

API-wise the project intends to be the flask for VoIP but with a focus on performance and scalability more like sanic.

.. _asyncio: https://docs.python.org/3.6/library/asyncio.html .. _FreeSWITCH: https://freeswitch.org/ .. _Python: https://www.python.org/ .. _switchy: https://github.com/sangoma/switchy .. _coroutine: https://docs.python.org/3.6/library/asyncio-task.html .. _flask: http://flask.pocoo.org/ .. _sanic: https://github.com/channelcat/sanic .. _docs: https://switchio.readthedocs.org/

Use the power of async and await!

Build a routing system using Python's new coroutine_ syntax:

.. code:: python

from switchio.apps.routers import Router

router = Router(
    guards={
        'Call-Direction': 'inbound',
        'variable_sofia_profile': 'external'},
    subscribe=('PLAYBACK_START', 'PLAYBACK_STOP'),
)

@router.route('(.*)')
async def welcome(sess, match, router):
    """Say hello to inbound calls.
    """
    await sess.answer()  # resumes once call has been fully answered
    sess.log.info("Answered call to {}".format(match.groups(0)))

    sess.playback(  # non-blocking
        'en/us/callie/ivr/8000/ivr-founder_of_freesource.wav')
    await sess.recv("PLAYBACK_START")
    sess.log.info("Playing welcome message")

    await sess.recv("PLAYBACK_STOP")
    await sess.hangup()  # resumes once call has been fully hungup

Run this app (assuming it's in dialplan.py) from the shell::

$ switchio serve fs-host1 fs-host2 fs-host3 --app ./dialplan.py:router

You can also run it from your own script:

.. code:: python

if __name__ == '__main__':
    from switchio import Service
    service = Service(['fs-host1', 'fs-host2', 'fs-host3'])
    service.apps.load_app(router, app_id='default')
    service.run()

Spin up an auto-dialer

Run thousands of call flows to stress test your service system using the built-in auto-dialer_::

$ switchio dial fs-tester1 fs-tester2 --profile external --proxy myproxy.com --rate 100 --limit 3000

.. _auto-dialer: http://switchio.readthedocs.io/en/latest/callgen.html

Install

::

pip install switchio

Docs

Oh we've got them docs_!

How do I deploy my FreeSWITCH cluster?

  • Enable inbound ESL_ connections
  • Add a park-only dialplan (Hint: we include one here)

See the docs_ for the deats!

.. _inbound ESL: https://freeswitch.org/confluence/display/FREESWITCH/mod_event_socket#mod_event_socket-Configuration .. _park-only: https://freeswitch.org/confluence/display/FREESWITCH/mod_dptools%3A+park .. _here: https://github.com/friends-of-freeswitch/switchio/blob/master/conf/switchiodp.xml

What's included?

  • A slew of built-in apps_
  • A full blown auto-dialer_ originally built for stress testing VoIP service systems
  • Super detailed ESL event logging

.. _built-in apps: http://switchio.readthedocs.io/en/latest/apps.html .. _auto-dialer: http://switchio.readthedocs.io/en/latest/callgen.html

How can I contribute?

Have an idea for a general purpose switchio app or helper? Make a PR here on GitHub!

Also, if you like switchio let us know on Riot_!

.. _Riot: https://riot.im/app/#/room/#freeswitch:matrix.org

Wait, how is switchio different from other ESL clients?

switchio differentiates itself by supporting FreeSWITCH process cluster control as well as focusing on leveraging the most modern Python language features. switchio takes pride in being a batteries included framework that tries to make all the tricky things about FreeSWITCH a cinch.

What if I'm stuck on Python 2?

Check out these other great projects:

  • greenswitch_
  • eventsocket_
  • pySWITCH_
  • python-ESL_

.. _greenswitch: https://github.com/EvoluxBR/greenswitch .. _eventsocket: https://github.com/fiorix/eventsocket .. _pySWITCH: http://pyswitch.sourceforge.net/ .. _python-ESL: https://github.com/sangoma/python-ESL

Performance monitoring

If you'd like to record performance measurements using the CDR_ app, some optional numerical packages can be used:

.. _CDR: http://switchio.readthedocs.io/en/latest/apps.html#cdr

=============== ================ ================================ Feature Dependency Installation =============== ================ ================================ Metrics Capture pandas pip install switchio[metrics] Graphing matplotlib pip install switchio[graphing] HDF5 pytables [#] pip install switchio[hdf5] =============== ================ ================================

.. [#] pytables support is a bit shaky and not recommended unless you intend to locally process massive data sets worth of CDRs. The default CSV backend is usually sufficient on a modern file system.

.. _pandas: http://pandas.pydata.org/ .. _matplotlib: http://matplotlib.org/ .. _pytables: http://www.pytables.org/

License

All files that are part of this project are covered by the following license, except where explicitly noted.

This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.

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