Bot-Tender: A Chat Bot Walks into a Bar - TechBash 2017
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This document discusses building a chat bot named Beer Bot using the Microsoft Bot Framework. It covers the bot's architecture including integrating with the Beer API and Bot Framework services. It demonstrates the bot recommending beers, taking orders, and using forms, cards, state management, and LUIS. The document emphasizes the importance of conversation design and provides resources for building bots.
![Chain API
A Fluent API for building dialogs
Available using the Chain class
29
public static readonly IDialog<Beer> Dialog = Chain
.From(() => new PromptDialog.PromptChoice<RecommendationOptions>(
new[] { RecommendationOptions.Category, RecommendationOptions.Origin, RecommendationOptions.Name },
"How would you like me to recommend your beer?",
"Not sure I got it. Could you try again?",
3, descriptions: new [] { "By Beer Category" , "By Beer Origin", "By Beer Name" }))
.Switch(
Chain.Case<...>(option => option == RecommendationOptions.Category, (context, option) => CategoryRecommendation),
Chain.Case<...> (option => option == RecommendationOptions.Origin, (context, option) => CountryRecommendation),
Chain.Case<...> (option => option == RecommendationOptions.Name, (context, option) => NameRecommendation)
)
.Unwrap();](https://image.slidesharecdn.com/botframework-171008090450/85/Bot-Tender-A-Chat-Bot-Walks-into-a-Bar-TechBash-2017-26-320.jpg)
![Form Flow
32
public class BeerOrder
{
[Prompt("What beer would you like?")]
public string BeerName { get; set; }
[Prompt("Which chaser would you like next to your beer? {||}")]
public Chaser Chaser { get; set; }
[Prompt("How about something to eat? {||}")]
public SideDish Side { get; set; }
}
public static IDialog<BeerOrder> CreateDialog(string beerName = null)
{
return new FormDialog<BeerOrder>(
new BeerOrder { BeerName = beerName }, ...);
}](https://image.slidesharecdn.com/botframework-171008090450/85/Bot-Tender-A-Chat-Bot-Walks-into-a-Bar-TechBash-2017-29-320.jpg)
![LUIS & Bot Framework
45
[LuisIntent("Bye")]
public async Task OnByeAsync(...)
{
await context.PostAsync("Bye bye. See you soon!");
context.Done((object) null);
}
[LuisIntent("RecommendBeer")]
public Task OnRecommendBeerAsync(...)
{
var beerName = GetEntity(luisResult, BeerNameEntityName);
var brewery = GetEntity(luisResult, BreweryEntityName);
var category = GetEntity(luisResult, CategoryEntityName);
var country = GetEntity(luisResult, CountryEntityName);
context.Call(RecommendationDialog.CreateDialog(beerName, brewery, category, country), BeerRecommendedAsync);
return Task.FromResult((object) null);
}](https://image.slidesharecdn.com/botframework-171008090450/85/Bot-Tender-A-Chat-Bot-Walks-into-a-Bar-TechBash-2017-42-320.jpg)
Bot-Tender: A Chat Bot Walks into a Bar - TechBash 2017
- 1. Bot-Tender: A Chat Bot Walks into a Bar 1 Eran Stiller @eranstiller Chief Technology Officer erans@codevalue.net http://stiller.blog
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- 9. Agenda 9 Microsoft Bot Framework Messages Dialogs Forms State Microsoft Cognitive Services Image Search Language Understanding (LUIS) Speech
- 10. About Me Eran Stiller (@eranstiller) CTO & Founder at CodeValue Software architect, consultant and instructor Microsoft Azure MVP Many years of hands-on experience Expert in large-scale, server-side, highly-concurrent systems Founder of Azure Israel Meetup 10
- 11. Cloud Computing Advanced Mobile Technologies UI/UX & Graphic Design Cross Platform Development Advanced Web Technologies ALM & DevOps Software Architecture IOT & Embedded Software Training & Mentoring Development Management & Methodology CodeValue
- 12. Debug like a wizard Quit debugging, spend more time writing brilliant software Magic Glance / Figure out complex expressionsLINQ Debugging / Know the flow of your LINQ queries Reveal / Focus on data that actually matterSearch/ Find that needle in a haystack of data With our Visual Studio extension for C#, follow the road to a bug-free world oz-code.com | @oz_code
- 13. Introduction to Chat Bots 16 Natural Language User Interface (NLUI) Not to be confused with NUI Another form of UX/UI Conversation design is key Building a conversation tree/graph The hardest part
- 14. Introducing Beer Bot 17 Your friendly bartender bot Or Bot-Tender Beer-Bot can: Recommend a beer Order you a beer with a chaser and side dish Remember your last drink
- 15. Architecture 18 Beer Bot Beer API Beer DB* User
- 16. Beer Bot – Simplified Conversation View 19 Root Recommend Beer By Type By Country By Category Order Beer Help Beer Chaser Side Dish Entrance
- 17. Demo 20 Beer API
- 19. Microsoft Bot Framework Bot web service Your bot code Entity Extraction Speech Vision/Face Natural Language Translation + Microsoft Cognitive Services Search Emotion Knowledge API … Message input <> output State Management Bot Connector Service Conversation Canvas/Channels …… … Other services, APIs, Databases, Azure Machine Learning, Azure Search, etc… Bot Builder SDK Web Chat Direct Line… Email Facebook GroupMe Kik Skype Slack Telegram Twilio (SMS) Bot Builder SDK Your bot code goes here 22
- 22. Dialogs Dialogs are for bots like screens are for apps Dialogs are serialized into a stack 25 Root Recommend Beer Order Beer
- 23. Dialog State Code continuations allow modeling a state machine 26 if (...) { context.Call(OrderDialog.CreateDialog(), BeerOrderedAsync); return; }
- 25. Conversation Flow The active dialog takes control of conversation flow Using the SDK you can: Context.Wait() Context.Done() Context.Fail() Context.Foreward() Context.Call() 28
- 26. Chain API A Fluent API for building dialogs Available using the Chain class 29 public static readonly IDialog<Beer> Dialog = Chain .From(() => new PromptDialog.PromptChoice<RecommendationOptions>( new[] { RecommendationOptions.Category, RecommendationOptions.Origin, RecommendationOptions.Name }, "How would you like me to recommend your beer?", "Not sure I got it. Could you try again?", 3, descriptions: new [] { "By Beer Category" , "By Beer Origin", "By Beer Name" })) .Switch( Chain.Case<...>(option => option == RecommendationOptions.Category, (context, option) => CategoryRecommendation), Chain.Case<...> (option => option == RecommendationOptions.Origin, (context, option) => CountryRecommendation), Chain.Case<...> (option => option == RecommendationOptions.Name, (context, option) => NameRecommendation) ) .Unwrap();
- 28. Forms 31
- 29. Form Flow 32 public class BeerOrder { [Prompt("What beer would you like?")] public string BeerName { get; set; } [Prompt("Which chaser would you like next to your beer? {||}")] public Chaser Chaser { get; set; } [Prompt("How about something to eat? {||}")] public SideDish Side { get; set; } } public static IDialog<BeerOrder> CreateDialog(string beerName = null) { return new FormDialog<BeerOrder>( new BeerOrder { BeerName = beerName }, ...); }
- 31. Rich Cards 34
- 34. “Typing” Indicator Your users expect you to reply quickly 37
- 38. Bot State Use the session object User Data Conversation Data Private Conversation Data Dialog Data Persisted and managed by the Bot Framework State Service IBotStorage 41
- 41. LUIS 44
- 42. LUIS & Bot Framework 45 [LuisIntent("Bye")] public async Task OnByeAsync(...) { await context.PostAsync("Bye bye. See you soon!"); context.Done((object) null); } [LuisIntent("RecommendBeer")] public Task OnRecommendBeerAsync(...) { var beerName = GetEntity(luisResult, BeerNameEntityName); var brewery = GetEntity(luisResult, BreweryEntityName); var category = GetEntity(luisResult, CategoryEntityName); var country = GetEntity(luisResult, CountryEntityName); context.Call(RecommendationDialog.CreateDialog(beerName, brewery, category, country), BeerRecommendedAsync); return Task.FromResult((object) null); }
- 44. Deployment The Bot is just a REST API Can be hosted anywhere Azure App Service is an easy choice 47
- 45. Channels 48
- 46. Monitoring 49
- 49. SSML Speech Synthesis Markup Language 52 The rental car you reserved <break strength="medium" /> a mid-size sedan <break strength="medium" /> will be ready for you to pick up at <break time="500ms" /> <say-as interpret-as="hms12"> 4:00pm </say-as> today. For English, press 1. <voice xml:lang="fr-FR" gender="female"> Pour le français, appuyez sur 2 </voice> <prosody volume="x-loud"> This is extra loud volume. </prosody> <audio src=“http://somewhere.com/mymusic.mp3"> Here's today's weather forecast. </audio> https://msdn.microsoft.com/en-us/library/jj127898.aspx
- 51. Takeaways 54 Chat bots are another form of UI (NLUI) Microsoft Bot Framework makes it easier to write your bot Standard connection to various channels Bot Builder SDK Integration with Cognitive Services The trickiest part is still designing the conversation
- 52. Takeaways 55
- 53. Resources Sample Code https://github.com/estiller/beer-bot Product & Documentation https://dev.botframework.com/ https://docs.microsoft.com/en-us/bot-framework/ More Samples https://github.com/Microsoft/BotFramework-Samples https://github.com/Microsoft/BotBuilder-Samples 56
- 54. Thank You! 57 Eran Stiller @eranstiller Chief Technology Officer erans@codevalue.net http://stiller.blog
Editor's Notes
- #15: CodeValue is rooted in the Israeli High-tech ecosystem and expertise Founded by a team of visionary technical experts and consultants in 2010 A team of 200 experts (over 30 leading architects), and growing… Built around nurturing talents, hiring experts and developing potentials Growing through a track record of solving complex technical challenges Successfully implementing software development processes in companies of all scales CodeValue is at the leading edge of advanced software development Community of experts globally recognized by Microsoft, Google and Amazon Early access to new technologies, hands-on practice at all levels Decades of “real world” development experience 1 Microsoft MRD, 3 Microsoft MVP, 2 Google GDE & Mentors, AWS certified
- #16: CodeValue is rooted in the Israeli High-tech ecosystem and expertise Founded by a team of visionary technical experts and consultants in 2010 A team of 200 experts (over 30 leading architects), and growing… Built around nurturing talents, hiring experts and developing potentials Growing through a track record of solving complex technical challenges Successfully implementing software development processes in companies of all scales CodeValue is at the leading edge of advanced software development Community of experts globally recognized by Microsoft, Google and Amazon Early access to new technologies, hands-on practice at all levels Decades of “real world” development experience 1 Microsoft MRD, 3 Microsoft MVP, 2 Google GDE & Mentors, AWS certified
- #17: https://pixabay.com/en/dog-boxer-brown-bot-portrait-1314180/
- #18: https://pixabay.com/en/bot-dance-robot-android-mechanical-151516/ https://pixabay.com/en/beer-beer-mug-foam-the-thirst-1669298/
- #26: They separate concerns and organize flows, exactly the same way