Having fun with Microsoft Bot Framework and Azure Cognitive Services

Jul 1, 20181 like110 views

This document discusses building bots using the Microsoft Bot Framework and Azure Cognitive Services. It provides an overview of the Bot Framework architecture and how to register bots in Telegram. It also demonstrates how to handle different activity types, create dialogs, and debug bots using the Bot Framework Emulator. Luis concepts like intents, entities, and utterances are explained. Finally, it shows how to leverage Luis for natural language processing in bots and provides a demo of a meeting room booking bot.

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Having fun with Microsoft
Bot Framework & Azure
Cognitive Services

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Bot Framework Architecture

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Registering new bot in telegram

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Demo: Image Describing Bot
https://t.me/LoGeekNightImageDescriptionBot https://vimeo.com/277372670

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Entry point of bot application
https://<your-website-url>/api/messages
[ResponseType(typeof(void))]
public virtual async Task<HttpResponseMessage> Post([FromBody] Activity activity)
{
// check if activity is of type message
if (activity != null && activity.GetActivityType() == ActivityTypes.Message)
{
await Conversation.SendAsync(activity, () => new RootDialog());
}
else
{
await HandleSystemMessage(activity);
}
return new HttpResponseMessage(System.Net.HttpStatusCode.Accepted);
}

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Activity types
private async Task<Activity> HandleSystemMessage(Activity message)
{
if (message.Type == ActivityTypes.DeleteUserData)
{
// GDPR stuff should be here in case we store user data
}
else if (message.Type == ActivityTypes.ConversationUpdate)
{
// Somebody was added or removed from the conversation
}
else if (message.Type == ActivityTypes.ContactRelationUpdate)
{
// Handle add/remove from contact lists
// Activity.From + Activity.Action represent what happened
}
else if (message.Type == ActivityTypes.Typing)
{
// Handle knowing tha the user is typing
}
else if (message.Type == ActivityTypes.Ping)
{
}
return null;
}

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Dialog Example
public class RootDialog : IDialog<object>
{
protected int count = 1;
public async Task StartAsync(IDialogContext context)
{
await context.PostAsync("Some welcome message");
context.Wait(MessageReceivedAsync);
}
public async Task MessageReceivedAsync( IDialogContext context,
IAwaitable<IMessageActivity> argument)
{
var message = await argument;
await context.PostAsync($"{this.count++}: You said {message.Text}");
context.Wait(MessageReceivedAsync);
}
}

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Debugging a bot with an Emulator
Setting up an endpoint in Bot Framework Emulator

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Debugging a bot with an Emulator
Sending messages to emulator

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What is inside Activity
https://vimeo.com/277352456

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Debugging a bot with ngrok

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Changing settings of IIS Express
● To make app visible from ngrok change .vsconfigapplicationhost.config
Run VS as administrator

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Setting up new endpoint on Azure Portal

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Debugging a bot. Connected channels

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Demo: meeting room booking bot
https://t.me/LoGeekMeetingRoomBot
https://vimeo.com/277376487

www.luxoft.com
Managing conversation flow
As GUI apps are series of screens, bots are series of dialogs.
RootDialog is a starting screen of an app.
Types of dialogs
● IDialog<T> – low level, gives the most control over the conversation
● FormFlow – allows to construct dialogs from a set of primitives
● LuisDialog – focuses on Natural Language Processing, like RegEx on
steroids

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LUIS Key Concepts
Utterances – phrases that user to an app
Intents – what user wants to achieve by a phrase (e.g. BookMeetingRoom)
Entities – “parameters” of the intent (e.g. time or name of a meeting room)

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LUIS UI overview
https://vimeo.com/277180936

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Summary
● Bots are powerful tools to solve users problems, yet relatively easy to
implement
● Microsoft Bot Framework significantly simplifies the process of bot creation
● Combination of Bots and Cognitive Services is a match made in Heaven

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Thank you for your attention!

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Having fun with Microsoft Bot Framework and Azure Cognitive Services

1. www.luxoft.com Having fun with Microsoft Bot Framework & Azure Cognitive Services

9. www.luxoft.com Bot Framework Architecture

10. www.luxoft.com Bot Framework Architecture

11. www.luxoft.com Registering new bot in telegram

12. www.luxoft.com Demo: Image Describing Bot https://t.me/LoGeekNightImageDescriptionBot https://vimeo.com/277372670

13. www.luxoft.com Entry point of bot application https://<your-website-url>/api/messages [ResponseType(typeof(void))] public virtual async Task<HttpResponseMessage> Post([FromBody] Activity activity) { // check if activity is of type message if (activity != null && activity.GetActivityType() == ActivityTypes.Message) { await Conversation.SendAsync(activity, () => new RootDialog()); } else { await HandleSystemMessage(activity); } return new HttpResponseMessage(System.Net.HttpStatusCode.Accepted); }

14. www.luxoft.com Activity types private async Task<Activity> HandleSystemMessage(Activity message) { if (message.Type == ActivityTypes.DeleteUserData) { // GDPR stuff should be here in case we store user data } else if (message.Type == ActivityTypes.ConversationUpdate) { // Somebody was added or removed from the conversation } else if (message.Type == ActivityTypes.ContactRelationUpdate) { // Handle add/remove from contact lists // Activity.From + Activity.Action represent what happened } else if (message.Type == ActivityTypes.Typing) { // Handle knowing tha the user is typing } else if (message.Type == ActivityTypes.Ping) { } return null; }

15. www.luxoft.com Dialog Example public class RootDialog : IDialog<object> { protected int count = 1; public async Task StartAsync(IDialogContext context) { await context.PostAsync("Some welcome message"); context.Wait(MessageReceivedAsync); } public async Task MessageReceivedAsync( IDialogContext context, IAwaitable<IMessageActivity> argument) { var message = await argument; await context.PostAsync($"{this.count++}: You said {message.Text}"); context.Wait(MessageReceivedAsync); } }

16. www.luxoft.com Debugging a bot with an Emulator Setting up an endpoint in Bot Framework Emulator

17. www.luxoft.com Debugging a bot with an Emulator Sending messages to emulator

18. www.luxoft.com What is inside Activity https://vimeo.com/277352456

19. www.luxoft.com Debugging a bot with ngrok

20. www.luxoft.com Changing settings of IIS Express ● To make app visible from ngrok change .vsconfigapplicationhost.config Run VS as administrator

21. www.luxoft.com Setting up new endpoint on Azure Portal

22. www.luxoft.com Debugging a bot. Connected channels

23. www.luxoft.com Breakpoint from Skype

24. www.luxoft.com Breakpoint from telegram

25. www.luxoft.com Demo: meeting room booking bot https://t.me/LoGeekMeetingRoomBot https://vimeo.com/277376487

26. www.luxoft.com Managing conversation flow As GUI apps are series of screens, bots are series of dialogs. RootDialog is a starting screen of an app. Types of dialogs ● IDialog<T> – low level, gives the most control over the conversation ● FormFlow – allows to construct dialogs from a set of primitives ● LuisDialog – focuses on Natural Language Processing, like RegEx on steroids

27. www.luxoft.com LUIS Key Concepts Utterances – phrases that user to an app Intents – what user wants to achieve by a phrase (e.g. BookMeetingRoom) Entities – “parameters” of the intent (e.g. time or name of a meeting room)

28. www.luxoft.com LUIS UI overview https://vimeo.com/277180936

29. www.luxoft.com Summary ● Bots are powerful tools to solve users problems, yet relatively easy to implement ● Microsoft Bot Framework significantly simplifies the process of bot creation ● Combination of Bots and Cognitive Services is a match made in Heaven

30. www.luxoft.com Questions?

31. www.luxoft.com Thank you for your attention!

Having fun with Microsoft Bot Framework and Azure Cognitive Services

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