Savage Garden Hotline

A show and tell of my personal project.
I built a hotline that when called, caller will hear my favorite song from Savage Garden, and my twitter bot will tweet about it.
The project is built using Python 3.6. It uses aiohttp library, Twython library, Twilio service, and deployed to Heroku.

Transcript

1. SAVAGE GARDEN HOTLINE
   Python-powered
   @Mariatta
   Code and Coffee YVR - Oct 2017
   +1-604-706-2558
   

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2. @Mariatta
   

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4. NATIONAL RICK ASTLEY HOTLINE
   Paul Fenwick’s
   Australia: +61-3-8652-1453
   New Zealand: +64-9-886-0565
   UK: +44-11-7325-7425
   USA: +1-760-706-7425
   https://github.com/pjf/rickastley
   

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5. https://i.ytimg.com/vi/uxsWjeiQ76s/maxresdefault.jpg
   

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6. https://i.ytimg.com/vi/uxsWjeiQ76s/maxresdefault.jpg
   
   

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7. http://images.eil.com/large_image/SAVAGE_GARDEN_CRASH%2BAND%2BBURN-383118.jpg
   

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8. http://images.eil.com/large_image/SAVAGE_GARDEN_CRASH%2BAND%2BBURN-383118.jpg
   +1-604-706-2558
   

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9. Building the Hotline
   • Phone Number
   • MP3
   • Webservice
   • Twitter bot
   

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10. Building the Hotline
    • Phone Number
    • MP3
    • Webservice
    • Twitter bot
    Python 3.6
    

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11. Getting the Phone Number
    https://www.twilio.com/
    

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13. https://www.twilio.com/docs/quickstart?filter-product=voice
    

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14. how it works
    

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15. how it works
    "
    

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16. how it works
    
    "
    

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17. how it works
    
    "
    

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18. how it works
    
    "
    ☁
    request
    

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19. how it works
    
    "
    ☁
    request
    response
    

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20. how it works
    
    "
    ☁
    request
    response
    mp3
    

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21. Twilio Python API
    from twilio.twiml.voice_response import VoiceResponse
    def hello_world():
    resp = VoiceResponse()
    resp.say("Hello world.")
    return str(resp)
    

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22. TwiML
    
    
    Hello world.
    
    

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23. aiohttp
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.say("Hello world.")
    return web.Response(text=str(response))
    app = web.Application()
    app.router.add_get('/', handle)
    web.run_app(app)
    http://aiohttp.readthedocs.io/
    server.py
    

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24. web: python3 -m server
    Procfile
    

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25. web: python3 -m server
    Procfile
    ☠
    500
    

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26. web: python3 -m server
    Web process failed to bind to $PORT within
    60 seconds of launch
    Procfile
    ☠
    500
    

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27. make it work
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.say("Hello world.")
    return web.Response(text=str(response))
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    

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28. make it work
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.say("Hello world.")
    return web.Response(text=str(response))
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    200
    

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29. MP3
    

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30. MP3
    
    

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31. MP3
    
    ⬆
    

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32. MP3
    
    ⬆
    ☁
    

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33. MP3
    
    ⬆
    ☁
    

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34. play the music
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.say("Hello world.")
    return web.Response(text=str(response))
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    

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35. play the music
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.play("https://s3.ca-central-1.amazonaws.com/strangerelationship/
    Savage+Garden+-+Crash+And+Burn.mp3")
    return web.Response(text=str(response))
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    

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36. play the music
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.play("https://s3.ca-central-1.amazonaws.com/strangerelationship/
    Savage+Garden+-+Crash+And+Burn.mp3")
    return web.Response(text=str(response))
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    200
    

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37. play the music
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.play("https://s3.ca-central-1.amazonaws.com/strangerelationship/
    Savage+Garden+-+Crash+And+Burn.mp3")
    return web.Response(text=str(response))
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    200
    
    

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38. … looks ok?
    
    
    https://s3.ca-central-1.amazonaws.com/
    strangerelationship/Savage+Garden+-
    +Crash+And+Burn.mp3
    
    

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39. … looks ok?
    
    
    https://s3.ca-central-1.amazonaws.com/
    strangerelationship/Savage+Garden+-
    +Crash+And+Burn.mp3
    
    Content-Type != xml
    

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40. make it work (for real)
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.play("https://s3.ca-central-1.amazonaws.com/strangerelationship/
    Savage+Garden+-+Crash+And+Burn.mp3")
    return web.Response(text=str(response), content_type='application/xml')
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    

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41. make it work (for real)
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.play("https://s3.ca-central-1.amazonaws.com/strangerelationship/
    Savage+Garden+-+Crash+And+Burn.mp3")
    return web.Response(text=str(response), content_type='application/xml')
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    200
    

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42. make it work (for real)
    server.py
    import os
    from aiohttp import web
    from twilio.twiml.voice_response import VoiceResponse
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.play("https://s3.ca-central-1.amazonaws.com/strangerelationship/
    Savage+Garden+-+Crash+And+Burn.mp3")
    return web.Response(text=str(response), content_type='application/xml')
    app = web.Application()
    app.router.add_get('/', handle)
    port = os.environ.get("PORT")
    if port is not not None:
    port = int(port)
    web.run_app(app, port=port)
    200
    
    

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43. the GET request
    at=info method=GET path="/?
    Called=%2B16047062558&ToState=BC&CallerCountry=CA&Direction=inbound&CallerStat
    e=BC&ToZip=&To=%2B16047062558&CallerZip=&ToCountry=CA&ApiVersion=2010-04-01&Ca
    lledZip=&CalledCity=Vancouver&CalledCountry=CA&CallerCity=NEW+WESTMINSTER&From
    Country=CA&ToCity=Vancouver&FromCity=NEW+WESTMINSTER&CalledState=BC&FromZip=&F
    romState=BC" host=crashandburnhotline.herokuapp.com
    request_id=e162d82f-94dc-43be-8b5b-f6d864161bb5 fwd="54.144.213.39" dyno=web.1
    connect=0ms service=269ms status=200 bytes=370 protocol=https
    

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44. the GET request
    at=info method=GET path="/?
    Called=%2B16047062558&ToState=BC&CallerCountry=CA&Direction=inbound&CallerStat
    e=BC&ToZip=&To=%2B16047062558&CallerZip=&ToCountry=CA&ApiVersion=2010-04-01&Ca
    lledZip=&CalledCity=Vancouver&CalledCountry=CA&CallerCity=NEW+WESTMINSTER&From
    Country=CA&ToCity=Vancouver&FromCity=NEW+WESTMINSTER&CalledState=BC&FromZip=&F
    romState=BC" host=crashandburnhotline.herokuapp.com
    request_id=e162d82f-94dc-43be-8b5b-f6d864161bb5 fwd="54.144.213.39" dyno=web.1
    connect=0ms service=269ms status=200 bytes=370 protocol=https
    

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45. twitter bot
    Register an APP at https://dev.twitter.com/apps
    Access level: Read and write
    Receive API token & secret
    

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46. Twython
    server.py
    from twython import Twython
    twitter = Twython(
    os.getenv("TW_API_KEY"),
    os.getenv("TW_API_SECRET"),
    os.getenv("TW_ACCESS_TOKEN"),
    os.getenv("TW_TOKEN_SECRET"))
    )
    async def handle(request):
    """Respond to incoming requests."""
    response = VoiceResponse()
    response.play("https://s3.ca-central-1.amazonaws.com/
    strangerelationship/Savage+Garden+-+Crash+And+Burn.mp3")
    twitter.update_status(status="Thanks for dialing in.")
    return web.Response(text=str(response), content_type='application/xml')
    https://twython.readthedocs.io/
    

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47. @SG_hotline_bot
    

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48. THANK YOU!
    @Mariatta
    Code and Coffee YVR - Oct 2017
    Savage Garden Hotline: +1-604-706-2558
    https://github.com/Mariatta/crash_and_burn_hotline/
    

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