Book Image

Hands-On Chatbot Development with Alexa Skills and Amazon Lex

By : Sam Williams
Book Image

Hands-On Chatbot Development with Alexa Skills and Amazon Lex

By: Sam Williams

Overview of this book

Have you ever wondered how Alexa apps are made, how voice-enabled technologies work, or how chatbots function? And why tech giants such as Amazon and Google are investing in voice technologies? A better question is: why should I start developing on these platforms? Hands-On Chatbot Development with Alexa Skills and Amazon Lex covers all features of the Alexa Skills kit with real-world examples that help you develop skills to integrate Echo and chatbots into Facebook, Slack, and Twilio with the Amazon Lex platform. The book starts with teaching you how to set up your local environment and AWS CLI so that you can automate the process of uploading AWS Lambda from your local machine. You will then learn to develop Alexa Skills and Lex chatbots using Lambda functions to control functionality. Once you’ve come to grips with this, you will learn to create increasingly complex chatbots, integrate Amazon S3, and change the way Alexa talks to the user. In the concluding chapters, we shift our focus to Amazon Lex and messaging chatbots. We will explore Alexa, learn about DynamoDB databases, and add cards to user conversations. By the end of this book, you will have explored a full set of technologies that will enable you to create your own voice and messaging chatbots using Amazon.
Table of Contents (13 chapters)

Conversational flow diagram

To make sure that we make an effective chatbot, we need to create our conversational flow diagram. This starts with our perfect conversation:

Car conversation

The user chose a large car, therefore, we had to ask them the price group as well as what type of transmission they want. This logic is going to become apparent in the conversation flow diagram. We can create similar conversations for users who choose medium or small cars, where all of the conversations would be slightly different. When there are different questions based on what the user has previously said, you can end up with hundreds of different conversations. This is where conversation flow diagrams really become useful.

In this conversation flow diagram, we have a very important logic component. It sees whether the user has chosen a small, medium, or large car, and directs the conversation...