Amazon Alexa Development Overview

Editor's Notes

• #6: > Amazon released Echo 36 months ago > Google home Apple Siri (Much to be done) Microsoft Cortana > Soon to be released Microsoft Invoke and Apple HomePod
• #7: > Amazon released Echo 36 months ago > Google home Apple Siri (Much to be done) Microsoft Cortana > Soon to be released Microsoft Invoke and Apple HomePod
• #8: Next slides will go into more depth on interaction model
• #11: Basics of the Alexa State Machine Tell => terminates the session with the response (Straight Forward Request Response) Ask => Send a response but ask more questions (Keep Session Open) The Response Object This object returns four methods: tell, tellWithCard, ask, and askWithCard. The Tell Methods tell(speechOutput) tellWithCard(speechOutput, cardTitle, cardContent) We have two methods here which will respond to the user and end the session. First is tell, which accepts a string that Alexa will speak to the user, and tellWithCard, which accepts a string that Alexa speaks to the user, a string that serves as the card title, and a string that serves as the body of the card. The card is displayed within the Amazon Echo app. The Ask Methods ask(speechOutput, repromptSpeech) askWithCard(speechOutput, repromptSpeech, cardTitle, cardContent) These methods are just like the tell methods, except for two key differences. First, the session is kept open, waiting for a further response from the user. Second, the second argument is a string that Alexa will speak to the user if they haven’t responded to specify what they want.
• #12: Intent – determine what function within the handler will be executed. Amazon have predefined Intents
• #13: Amazon ASK CLI for deployments rather than manually configuring in developer.amazon.com GUI.
• #14: The Response Object This object returns four methods: tell, tellWithCard, ask, and askWithCard. The Tell Methods tell(speechOutput) tellWithCard(speechOutput, cardTitle, cardContent) We have two methods here which will respond to the user and end the session. First is tell, which accepts a string that Alexa will speak to the user, and tellWithCard, which accepts a string that Alexa speaks to the user, a string that serves as the card title, and a string that serves as the body of the card. The card is displayed within the Amazon Echo app. The Ask Methods ask(speechOutput, repromptSpeech) askWithCard(speechOutput, repromptSpeech, cardTitle, cardContent) These methods are just like the tell methods, except for two key differences. First, the session is kept open, waiting for a further response from the user. Second, the second argument is a string that Alexa will speak to the user if they haven’t responded to specify what they want.
• #17: The Response Object Authorization versus Authentication Emit Types Below. This object returns four methods: tell, tellWithCard (Card gets send to the app associate with Echo Dot), ask, and askWithCard. The Tell Methods (Closes the session after sending the response) tell(speechOutput) tellWithCard(speechOutput, cardTitle, cardContent) We have two methods here which will respond to the user and end the session. First is tell, which accepts a string that Alexa will speak to the user, and tellWithCard, which accepts a string that Alexa speaks to the user, a string that serves as the card title, and a string that serves as the body of the card. The card is displayed within the Amazon Echo app. The Ask Methods (Keep session open (Multiple request/response cycles) for asking more questions – e.g. booking a holiday, get more info) ask(speechOutput, repromptSpeech) askWithCard(speechOutput, repromptSpeech, cardTitle, cardContent) These methods are just like the tell methods, except for two key differences. First, the session is kept open, waiting for a further response from the user. Second, the second argument is a string that Alexa will speak to the user if they haven’t responded to specify what they want. The primary difference between these two types is in how the access token is obtained from your system. From the end user’s perspective, there is no difference.
• #18: > OAuth 2.0 Underlying security platform > Alexa proprietary signature validation Resource Owner Role: User The resource owner is the user who authorizes an application to access their account. The application's access to the user's account is limited to the "scope" of the authorization granted (e.g. read or write access). Resource Role / Authorization Server Role: API The resource server hosts the protected user accounts, and the authorization server verifies the identity of the user then issues access tokens to the application. From an application developer's point of view, a service's API fulfills both the resource and authorization server roles. We will refer to both of these roles combined, as the Service or API role. Client: Application The client is the application that wants to access the user's account. Before it may do so, it must be authorized by the user, and the authorization must be validated by the API.
• #20: The Response Object This object returns four methods: tell, tellWithCard, ask, and askWithCard. The Tell Methods tell(speechOutput) tellWithCard(speechOutput, cardTitle, cardContent) We have two methods here which will respond to the user and end the session. First is tell, which accepts a string that Alexa will speak to the user, and tellWithCard, which accepts a string that Alexa speaks to the user, a string that serves as the card title, and a string that serves as the body of the card. The card is displayed within the Amazon Echo app. The Ask Methods ask(speechOutput, repromptSpeech) askWithCard(speechOutput, repromptSpeech, cardTitle, cardContent) These methods are just like the tell methods, except for two key differences. First, the session is kept open, waiting for a further response from the user. Second, the second argument is a string that Alexa will speak to the user if they haven’t responded to specify what they want.