Dr. Strangelove or: How I learned to stop worrying and love the serverless chatbots (v2)

From Code Europe Krakow, spring 2018: https://www.codeeurope.pl/en

Links from the presentation:
- https://claudiajs.com
- https://vacationtrackerbot.com
- http://serverless-book.com
- https://effortless-serverless.com

Transcript

1. DR.STRANGELOVE OR: HOW I LEARNED TO STOP WORRYING AND LOVE THE SERVERLESS CHATBOTS
2. @slobodan_ CTO of Cloud Horizon Co-author of Serverless Apps with Node and Claudia.js effortless-serverless.com @slobodan_ Slobodan Stojanović
3. @slobodan_ OVERVIEW • Chatbots • Serverless • Why do they work together well • When and how to use them • Real-world example
4. @slobodan_ Walt Disney
5. @slobodan_ 1. CHATBOTS
6. @slobodan_ Chatbot (or chatterbot) is a computer program that simulates human conversation through voice commands or text chats or both.
7. @slobodan_
8. @slobodan_ because the idea is not new A SHORT HISTORY
9. @slobodan_ • Turing Test (1950) • Eliza (1966) • Parry (1972) • Racter (1983) • A.L.I.C.E. (1995) • Jabberwacky (2005) • Slack Bot and Amazon Alexa (2014) • Telegram and FB Bots (2015) • Many others (2016)
10. @slobodan_ when Parry met Eliza…
11. @slobodan_ or, what can you develop chatbots for POPULAR PLATFORMS
12. @slobodan_
13. @slobodan_ are they always using some kind of AI? HOW DO CHATBOTS WORK
14. @slobodan_
15. @slobodan_
16. @slobodan_
17. @slobodan_ you can build a chatbot without AI and even without NLP
18. @slobodan_
19. @slobodan_
20. @slobodan_ so, what is a common chatbot implementation?
21. @slobodan_
22. @slobodan_ in case you need help with NLP/AI MAKE YOUR BOT SMARTER
23. @slobodan_
24. @slobodan_ some platforms have built-in NLP
25. @slobodan_ for most of the platforms you can use third-party NLP/AI library
26. @slobodan_ dialogflow wit.ai luis.ai IBM Watson
27. @slobodan_ 2. SERVERLESS
28. @slobodan_ AWS Lambda, Azure Functions, etc. Function as a Service?
29. @slobodan_ next generation of PaaS? Platform as a Service?
30. @slobodan_ Serverless computing is a cloud-computing execution model in which the cloud provider dynamically manages the allocation of machine resources.
31. @slobodan_ Pricing is based on the actual amount of resources consumed by an application, rather than on pre-purchased units of capacity.
32. @slobodan_ Serverless app costs you nothing* if no one is using it * except storage price
33. @slobodan_
34. @slobodan_ • Autoscaling • Pay per used capacity • No server maintenance • Short time to market • Cheap
35. @slobodan_ there are still servers in the background, right? Why is it called serverless?
36. @slobodan_
37. @slobodan_ There are only two hard things in Computer Science: cache invalidation and naming things
38. @slobodan_ Gojko Adzic "It is serverless the same way WiFi is wireless."
39. @slobodan_ who are the most popular providers SERVERLESS PLATFORMS
40. @slobodan_
41. @slobodan_
42. @slobodan_ AWS Lambda
43. @slobodan_ • Timeout up to 300 seconds • 128MB to 3GB of memory • 500MB of non-persistent storage (/tmp) • Default concurrency limit is 1000 functions
44. @slobodan_ • $0.20 per 1 million requests • First million requests/month are free • $0.00001667 for every GB-second • First 400.000 GB-seconds/month are free
45. @slobodan_ which language can you use for serverless apps PROGRAMMING LANGUAGES
46. @slobodan_ • Node.js • Python • Java (JVM based languages) • Golang • C# • Shell scripts • Any executable AWS Lambda
47. @slobodan_ • Node.js • C# • F# • Python • PHP • Any executable Azure Functions
48. @slobodan_ when should you use serverless WHAT IS IT GOOD FOR
49. @slobodan_ • Web APIs • Backend for Single Page Apps • IoT • Processing files or any kind of data • Microservices • Quick prototypes that can evolve to production-ready apps • Chatbots
50. @slobodan_ 3. CHATBOTS + SERVERLESS
51. @slobodan_ most of the triggers are event-driven SERVERLESS ❤ EVENTS
52. @slobodan_ messengers send new messages via webhooks CHATBOTS ❤ WEBHOOKS
53. @slobodan_ SERVERLESS + CHATBOTS
54. @slobodan_ Whitney Houston
55. @slobodan_ How does serverless chatbot work?
56. @slobodan_
57. @slobodan_
58. @slobodan_
59. @slobodan_
60. @slobodan_
61. @slobodan_
62. @slobodan_
63. @slobodan_ Edgar Allan Poe
64. @slobodan_ 4. WHEN AND HOW
65. @slobodan_ • Great for startups • Quick chatbot prototypes • Stateless bots • Stateful bots (with additional services) • Alexa skills
66. @slobodan_ DEMO
67. @slobodan_ 5. REAL-WORLD EXAMPLE
68. @slobodan_ https://vacationtrackerbot.com Vacation Tracker for Slack
69. @slobodan_ https://vacationtrackerbot.com • No user management (login with Slack) • Request vacation directly from Slack • Manage requests from Slack or from web based dashboard • Info and config via dashboard
70. @slobodan_ https://vacationtrackerbot.com
71. @slobodan_
72. @slobodan_ SUMMARY
73. @slobodan_ • Most of the popular messengers support chatbots • You can use free NLP/AI platforms, ie. Dialogflow • Serverless is event based and doesn't cost if no-one is using them • Serverless and chatbots work perfectly together • You can use Claudia Bot Builder to build serverless chatbots with AWS Lambda
74. @slobodan_ Julius Caesar
75. @slobodan_ serverless-book.com
76. @slobodan_ • Create an API • Connect it with serverless DB • Add authorization • Build a FB chatbot • Build an Alexa skill • Learn how to test and debug • Learn good practices and how to migrate • Read real-world case studies
77. @slobodan_ THE END Marilyn Monroe
78. @slobodan_ claudiajs.com effortless-serverless.com vacationtrackerbot.com
79. @slobodan_ Serverless Apps with Node and Claudia.js
 promo code for 40% off ctwcodeeu18 serverless-book.com @slobodan_ Thanks!