Hello world? Hello? Hello? Building epic telephony apps with django-twilio.

Who am I? ● Randall Degges ● Lead developer @ BTS communications (we build cool telephony stuff). ● Full stack developer. ● Been doing this for 3 years. ● Python / Django / Asterisk / VoIP. ● rdegges@gmail.com ● http://rdegges.com/ ● IRC: rdegges @ freenode

So... what the heck is telephony?

Telephony ● Apps that work via voice (IVRs). ● Apps that work via SMS (text message). ● Apps that help people communicate using their phones. ● Some examples: ○ PagerDuty (http://www.pagerduty.com/) ○ Conference Calls (http://bridg.me/) ○ Knock Knock (http://knockknock.in/) ○ ...

A brief history of telephony.

Telephony--finally usable! ● Until recently, telephony was HARD. ○ Expensive and Proprietary. ○ Required hookups (telcos, carriers, special hardware). ○ Lots of domain knowledge. ○ Big learning curve. ● twilio is a game changer. ○ Cheap and Accessible. ○ Less of a learning curve. ○ Scalable. ○ Works over HTTP.

Why twilio? ● Cheap. ● Scalable. ● Well documented & supported. ● I said so! ● http://twilio.com/

Let's learn about telephony!

How twilio works (incoming). ● You buy a phone number from twilio. ● You give twilio a URL where your application lives (eg: http://coolguy.com/sup/bro/). ● Someone calls or SMS messages your phone number. ● twilio receives your call / SMS, and POSTs to your URL with lots of data. ● Your web application tells twilio what to do next. ● Repeat.

How twilio works (outgoing). ● You POST to twilio with some instructions. ● twilio does what you want.

django-twilioooooyeeaaaa

django-twilio makes twilio easy. ● It provides lots of utilities for building twilio apps. ● Don't write boilerplate code. ● Lock down your telephony web applications. ● It's actively developed. (github.com/rdegges/django-twilio) ● It's got great support. ● It's got great docs. (django-twilio.readthedocs.org) ● It's unit tested. ● It got sample apps (github.com/rdegges/django-twilio-example-apps) ● And oh yea, it's easy!

Hello, LA Django! # urls.py urlpatterns = patterns('', # ... url(r'^$', 'django_twilio.views.say', {'text': 'hi!'}), # ... ) Try it live: (818) 924-2907! See: http://django-twilio.readthedocs.org/en/latest/views.html#saying-stuff

Easy, right?

Make a Conference Room # urls.py urlpatterns = patterns('', # ... url(r'^$', 'django_twilio.views.conference', { 'name': 'conf1', 'wait_url': 'http://twimlets.com/holdmusic?Bucket=com. twilio.music.rock', 'wait_method': 'GET', }), # ... ) Try it live: (818) 924-2942! django-twilio.readthedocs.org/en/latest/views.html#teleconferencing

Custom Stuff # views.py from twilio.twiml import Response from django_twilio.decorators import twilio_view @twilio_view def my_view(request): r = Response() r.sms('Party at my place?') return r django-twilio.readthedocs.org/en/latest/decorators.html#all-in- one-decorator

State of Development ● Actively developed. ● New stuff every day. ● Great docs (http://django-twilio.rtfd.org). ● Lots of unit tests. ● Working on new features and stable release. ● Working towards being a full twilio solution. ● Project supported by twilio! http://www.twilio. com/docs/libraries/

Resources ● My website: http://rdegges.com/ ● twilio: http://www.twilio.com/ ● twilio-python: https://github.com/twilio/twilio-python ● django-twilio: https://github.com/rdegges/django-twilio ● example apps from this presentation: https://github. com/rdegges/django-twilio-example-apps

Questions?