Building Bots with Microsoft Bot Framework

By Kishore Gaddam

About This Book

• Develop various real-world intelligent bots from scratch using Microsoft Bot Framework
• Integrate your bots with most popular conversation platforms such as Skype, Slack, and Facebook Messenger
• Flaunt your bot building skills in your organization by thoroughly understanding and implementing the bot development concepts such as messages (rich text and pictures), dialogs, and third-party authentication and calling

Who This Book Is For

This book is for developers who are keen on building powerful services with great and interactive bot interface. Experience with C# is needed.

• Language: English
• Publisher: Packt Publishing
• Release date: May 31, 2017
• ISBN: 9781786469649

Book preview

Title Page

Building Bots with Microsoft Bot Framework

Build intelligent and smart conversational interfaces using Microsoft Bot Framework

Kishore Gaddam

BIRMINGHAM - MUMBAI

Copyright

Building Bots with Microsoft Bot Framework

Copyright © 2017 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: May 2017

Production reference: 1310517

Published by Packt Publishing Ltd.

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Birmingham 

B3 2PB, UK.

ISBN 978-1-78646-310-4

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Credits

About the Author

Kishore Gaddam is the CEO and a co-founder of Astrani Technologies and is recognized as an industry expert in mobile, cloud, and bot software development. He is a forward-thinking technology leader with 17+ years of international experience in building technology organizations, strategic planning, rolling out multiple platforms/products, IT program and project management, strategy and transformation (businesses, people, processes, and technologies), and growing business units across IoT, smart cities, NLP, AI, bots, cloud, robotics, mobile, healthcare, industrial automation, financial systems, retail, procurement (EPC), travel & leisure, logistics, manufacturing, and automotive domains.

He is a champion of the technical pre-sales, architecture, and software development of enterprise Azure IoT/bot/web applications using cognitive services, microservices, Service Fabric, Azure IoT Hub, Stream Analytics, Cortana Intelligence Suit, Logic Apps, Notification Hubs, Big Data, Azure Web Apps, Azure App service, Azure API Apps, Application Insights, API Management, Machine Learning, Azure SQL databases, Cosmos DB, Data Factory, Data Lake, HD Insight, Redis Cache, Key Vault, and Azure Service Bus, and a champion of implementing DevOps using Azure, PowerShell scripts, ARM templates, and VSTS. He has huge experience in startup leadership, including building teams, and developing a Minimum Viable Product (MVP) with little to no supervision. Kishore is comfortable at all layers of the startup people stack, from individual contributor (software development, product management) to CxO.

Kishore graduated in Technology Entrepreneurship from Stanford University, CA, and is a speaker at various conferences in the USA. Kishore is the author of the popular Microsoft Technologies blog. He has a love for mentoring and a passion for sharing new tools, programming languages, and technology trends at national conferences, regional code camps, local user groups, meetups, and hackathons.

I would like to thank my family and friends, who helped me make this book a reality. First, I want to thank my wife, Prathima. Her encouragement and support was invaluable. I would like to thank all my family members for their immense support in everything that I do, and my friends, who motivate me to move forward.

About the Reviewer

Allen ONeill is a chartered engineer with a background in enterprise systems. He is a fellow of the Brisith Computing Society, a Microsoft MVP (most valued professional) and writes for CodeProject, C-Sharp Corner and DZone. His core technology interests are Big Data engineering and machine learning, in particular using Data Science to create intelligent bots/agents for the web. He is also a ball throwing slave to his family dogs.

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Table of Contents

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Downloading the color images of this book

Errata

Piracy

Questions

Setting up Microsoft Bot Framework Dev Environment

Conversation as a Service (CaaS)

Your bot

The Bot Connector

The Bot Directory

Setting up the development environment

Prerequisites

Setting up the Bot Framework Connector SDK .NET

Messages

Basic format

Rich text

Skype emoticons

Welcome messages

Pictures and videos

Cards and buttons

Hero card

Thumbnail card

Carousel

Images

Buttons

Actions

Sign in

Receipt

Groups

Calling

Summary

Developing Your First Bot Using the Connector and Builder SDK

Bots are evolving

Bots use cases

Developing your first bot

Creating our first bot

Building a bot using the C# SDK

AssemblyInfo.cs

References

Microsoft Bot Builder

Microsoft Bot Connector

WebApiConfig.cs

MessageController.cs

Default.htm

Global.asax

Packages.config

Web.config

Post method

BotID

Microsoft App ID

MicrosoftAppPassword

How to deploy and run the bot application in the Bot Framework emulator locally

How to use dialogs in bot applications

How to use FormFlow in the bot application

Summary

Developing WeatherBot Using Dialogs and LUIS

Language Understanding Intelligent Service (LUIS)

Intents and Entities

Training your bot using utterances

Testing your LUIS app

Development of WeatherBot code

Calling LUIS from the bot

Calling the Weather API

Using cards

Natural speech and Intent processing bot using Microsoft Cognitive Services

Identifying the name of a person, place, and company using LUIS

Training your app

Calling LUIS from the bot

Summary

Natural Speech and Intent Processing Bot Using Microsoft Cognitive Services

Microsoft Cognitive Services

Signing up for Microsoft Cognitive Services

Building a bot application using Cognitive Services APIs

Analyzer's results

Identifying the name of a person, place, and company using LUIS

Training your app using utterances

Calling LUIS from the bot

Summary

Developing Bots Using LUIS Prompt Dialogs with State and Nearby Bot Using Custom APIs

Employee Enroll bot using LUIS prompt dialogs

Training the service

Training and publishing

Creating the C# class for LUIS response

Creating the bot application

Bot state service

Creating a state client

Get/SetProperty methods

Updating your Post method

Updating your QueryLUIS method

Developing a Nearby Bot using custom APIs

Summary

Developing an IVR Bot for a Bank Using Advanced Microsoft Bot Framework Technologies

High-level architectural diagram

Let's start coding

Creating an account with the bot

Storing the bot conversation (new account info) data in an Azure SQL database

Checking your savings account balance using the bot

Checking your current account balance using the bot

Paying your credit card bill using the bot

Deleting an account using the bot

Summary

Intelligent Bots with Microsoft Bot Framework and Service Fabric

Getting started using stateless microservices

Setting up your development environment for Service Fabric

Prerequisites

Installing the SDK and tools

Enabling PowerShell script execution

Creating a stateless Service Fabric web API

Publishing a Service Fabric project in Azure

Create Key Vault

Adding certificates to the Key Vault

Creating a cluster in the Azure portal

Summary

Developing Intelligent Facial Expression Identification Bot for IoT Using Azure and Power BI

Before getting started

Configuring Raspberry Pi and sensors

Prerequisites

Hardware

Software

Setting up sensors

Schematic diagram

Device identity and registry with IoT Hub

Using Device Explorer

Face API

Emotion API

Sign Up Microsoft Cognitive Services

Development of facial expressions identification bot

Let's code to know the emotions

Registering your Bot in Bot Framework

Publish and test your bot

Configure Direct Line Channel

Develop an UWP app for Raspberry Pi device

Create an UWP App project

How to detect the motion of the object using PIR Sensor and How to define the LED states

Initializing camera on detection of motion

How to send picture file to Facial Expression Bot and receive reply from it

Send Picture to Bot

Deploy Code in to Raspberry Pi

Show facial analytics data in Power BI

Set up Azure Stream Analytics to send IoT Hub data to Power BI

Set up Power BI

Summary

Publishing a Bot to Skype, Slack, Facebook, and the GroupMe Channel

Publishing bots to various channels

Publishing your bot application to Microsoft Azure web app

Registering your bot with Microsoft Bot Framework

Configuration

Testing the connection to your bot

Configuring channels

Configuring your bot with Slack

Configuring your bot with Skype

Configuring your bot with Facebook Messenger

Configuring your bot with GroupMe

Summary

Preface

This is a book for those who want to build fully functional and scalable Natural Language Processing Bots using Microsoft Bot Framework. Its learn-while-doing approach delivers the practical knowledge and experience a reader needs to design and build real-world bots. We explain concepts when needed to develop a bot, so that programming knowledge and experience grow together.                                      

This book will take you from software installation to developing a fully-functional bot that is deployed and run in Azure. This book leads the reader through the essential programming tools and techniques for developing bots for various conversation platforms, such as Skype, Slack, web chat, and so on. In each chapter, the reader will learn Microsoft Bot Framework programming concepts and apply them immediately, as you build a bot or enhance one from a previous chapter.

These bots have been designed and developed to teach the associated concepts and to provide practice working with the standard development tools, such as Visual Studio, the bot emulator, and Azure. Many of the discussions in the book will be clarified to make some of the more complex topics easier to understand. All of the projects have been built from scratch using Microsoft Bot Framework.

What this book covers

Chapter 1, Setting up the Microsoft Bot Framework Dev Environment, introduces the reader to what Microsoft Bot Framework is and how it helps in the development of bots. It walks the reader through on how to set up development environment, emulator, and the tools needed for programming. Reader gets to set up their development environment and install all the software required for getting started with programming a bot. The reader is also introduced to all the programming concepts involved in the development of bots.

Chapter 2, Developing Your First Bot Using the Connector and Builder SDK, this chapter introduces the reader to bot programming by building and locally deploying a simple Hello World bot application. The readers will get their feet wet with Visual Studio, C# .NET, Bot Framework, and the related technologies, along with all the steps required to create projects. This chapter includes a discussion of Bot Emulator and how it relates to bot development.

Chapter 3, Developing a WeatherBot Using Dialogs and LUIS, guides the reader through developing a fully functional weather bot. This bot communicates the current weather in a given city. Readers will interact with this bot on Skype or any other channel to find out the current weather at a given location.

Chapter 4, Natural Speech and Intent Processing Bot using Microsoft Cognitive Services, introduces the reader to the RichText Message technology, as well as Cortana Intelligence Services, by developing a fully functional bot. This bot identifies the concepts and actions in the text that is sent to the bot with part-of-speech tagging, finds phrases and concepts using natural language parsers, and returns all the identified intents that are created and trained in a custom LUIS app. If you say Hi John, I am going to New York tonight, the bot will return part-of-speech tagging, as well as parsing data for natural speech and intent processing to find out the name, location, and so on.

Name: John

Place: New York        

Whether you're mining customer feedback, interpreting user commands, or consuming web text, understanding the structure of the text is a critical first step and this chapter teaches that.

Chapter 5, Developing Bots Using LUIS Prompt Dialogs with State and Nearby Bot Using Custom APIs, is about how we can integrate APIs into bot development. Currently, every enterprise has web and mobile applications built on top of their APIs, which contain business functionality. Now, it would be natural to extend those APIs so that they can be used for bots as well. This chapter introduces readers to how to use Microsoft Bot Framework to develop a Nearby bot using APIs. This Nearby bot will provide the reader with all the available places near their location, with details for each and every one of them. This bot helps you to easily find nearby banks, clubs, restaurants, hotels, museums, pharmacies, hospitals, or any other place you want to search for.

Chapter 6, Developing an IVR Bot for a Bank using Advanced Microsoft Bot Framework Technologies, includes a real-world project that we will build from the ground up, so that readers can learn the concept as well as relate it to real-world scenarios. The following topics are explained in this chapter:

Building Interactive Voice Response (IVR) solutions

Learning how to build bots using dialogs, third-party authentication, Rich Text Format, and Bot State Service.

Learning how to use Form Builder while developing bots

Learning how to program using prompt dialogs

Learning how to implement Buttons in buttons

Third-party authentication

Bot State Service

Chapter 7, Intelligent Bots with Microsoft Bot Framework and Service Fabric, introduces the reader to the concept of microservices and how microservices can be used in bot development.