![resource "aws_iam_role" "my-skill-role" {
name = "my-skill-role"
assume_role_policy = <<EOF
{
"Version": "2012-10-17",
"Statement": [
{
"Action": "sts:AssumeRole",
"Principal": {
"Service": "lambda.amazonaws.com"
},
"Effect": "Allow",
"Sid": ""
}
]
}
EOF
}
resource "aws_iam_role_policy_attachment" "my-skill-role-policy-dynamo-att" {
role = "${aws_iam_role.my-skill-role.name}”
policy_arn = "arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess"
}
resource "aws_iam_role_policy_attachment" "my-skill-role-policy-lambda-att" {
role = "${aws_iam_role.my-skill-role.name}”
policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
}](https://image.slidesharecdn.com/vuicodemotionrome20190323definitiva-190326083355/85/Design-and-Develop-Alexa-Skills-Codemotion-Rome-2019-39-320.jpg)
![The importance of “session”
for a voice app
• The skill session continues as the user speaks to
Alexa and your skill responds to Alexa
• The skill session ends when the user fails to
respond (8 seconds plus 8 more if re-prompt is
specified) or when the skill sets the
shouldEndSession property to true
• Once you are out of the session, you must invoke
the skill by saying something, such as "Alexa, open
[skill's invocation name]"](https://image.slidesharecdn.com/vuicodemotionrome20190323definitiva-190326083355/85/Design-and-Develop-Alexa-Skills-Codemotion-Rome-2019-45-320.jpg)
Design and Develop Alexa Skills - Codemotion Rome 2019
- 1. Design and Develop Alexa Skills Alessandra Petromilli and Federico Baron Rome | March 22 - 23, 2019
- 2. Alessandra Petromilli CXO, I drive the User Experience Strategy and Teams at ibuildings Italia @aleanan
- 3. Federico Baron Principal Solution Architect at ibuildings Italia Find me on Linkedin!
- 4. User Under the hood Device FulfillmentArtificial Intelligence
- 8. The process Goal Definition Personas and User Stories Script and Conversation Flow Usability Testing
- 10. Francesca and Luigi Beatrice Target users – personas
- 13. Utente: Alexa apri Filastrocche della buona notte Alexa: Ciao, con Filastrocche della buona notte possiamo ascoltare insieme delle belle filastrocche! Posso suggerirtene alcune io, puoi chiedermi tu un titolo preciso tra quelli disponibili sull'app o puoi ascoltare tutta la collezione dall'inizio alla fine. Vuoi ascoltare la luna, Guido il Ghiro o il sole?
- 14. Interactions
- 16. Interactions Conversation Flow Launch request First run? Welcome to text (introduce your skill) Welcome to text (introduce your skill) Welcome to text (introduce your skill) < intent > Nursery rhyme suggested by alexa < intent > Nursery rhyme suggested by the user < intent > play all (audio player mode) Help yes no
- 19. Teaming up
- 20. Teaming up put your ego aside
- 21. Curiosity
- 22. Technology is not somebody else’s problem
- 23. Feedbacks
- 25. Voice X Anil Kumar Krishnashetty founder of Berlin Lean Prototyping
- 29. Help documentation and error recovery
- 31. Developer console: define the interaction model using the web application
- 32. Let’s start! Register to Amazon developers and open your Alexa Developer Console • Web console to create and manage the lifecycle of your skills • UI to configure skill's manifest and models • Browser test environment (device simulator) • Certification process management • Analytics
- 33. Use the web GUI to setup you interaction model
- 34. Interaction model: use Alexa’s built-in elements as much as you can
- 35. Some built-in elements you can take advantage of defining your model • built-in intents (AMAZON.YesIntent, AMAZON.NextIntent, AMAZON.RepeatIntent, …) • built-in slot types (AMAZON.Date, AMAZON.Number, AMAZON.City, …) • use dialog model to delegate to Alexa a multi- turn conversation with the user
- 36. Sample Utterances • reproduce flexibility and variation of spoken language in the real world • add utterances to start interaction ("Alexa, ask Daily Horoscopes for/about/to") • it is better to provide too many samples than to provide too few • tools to generate utterances (ex. amazon-echo- utterance-expander)
- 37. Back-end:
- 38. One minute setup with AWS lambda and NodeJs • Log in to the AWS Management Console and navigate to AWS Lambda. • Create new Lamda function • Define a role for the function from “Simple Microservice” permissions template • Add and Configure the Alexa Skills Kit Triggers (insert skill-id) • Add Lambda endpoint (arn) to the skill
- 39. resource "aws_iam_role" "my-skill-role" { name = "my-skill-role" assume_role_policy = <<EOF { "Version": "2012-10-17", "Statement": [ { "Action": "sts:AssumeRole", "Principal": { "Service": "lambda.amazonaws.com" }, "Effect": "Allow", "Sid": "" } ] } EOF } resource "aws_iam_role_policy_attachment" "my-skill-role-policy-dynamo-att" { role = "${aws_iam_role.my-skill-role.name}” policy_arn = "arn:aws:iam::aws:policy/AmazonDynamoDBFullAccess" } resource "aws_iam_role_policy_attachment" "my-skill-role-policy-lambda-att" { role = "${aws_iam_role.my-skill-role.name}” policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole" }
- 40. resource "aws_lambda_function" "my-skill-lambda" { filename = "index.zip" function_name = "my-skill-name" role = "${aws_iam_role.my-skill-role.arn}” handler = "src/index.handler" runtime = "nodejs8.10" } resource "aws_lambda_permission" "my-skill-lambda-perm" { statement_id = "AllowExecutionFromAlexa" action = "lambda:InvokeFunction" function_name = "${aws_lambda_function.my-skill-lambda.function_name}” principal = "alexa-appkit.amazon.com" event_source_token = "${var.skill-id}" }
- 41. move to a comfortable development environment • ask init (setup cli tool linking Amazon Developer and AWS accounts) • ask clone • ask deploy
- 42. Development:
- 43. Simple introduction to NodeJS sdk const Alexa = require('ask-sdk’); // … exports.handler = Alexa.SkillBuilders.standard() .addResponseInterceptors(SavePersistentAttributesResponseInterceptor) .addRequestHandlers( LaunchRequestHandler, PlayRhymeHandler, PlayRandomHandler, ReplayHandler, PreviousHandler, PlayAllHandler, AudioPlayerEventHandler, ResumeHandler, YesHandler, NoHandler, HelpHandler, SessionEndedHandler, ExitHandler ) .addErrorHandlers(ErrorHandler) .withTableName('my-skill-table') .withAutoCreateTable(true) .lambda();
- 44. Simple introduction to NodeJS sdk // ... const PlayRhymeHandler = { canHandle(handlerInput) { // Conditions to determine the requests this handler can handle const request = handlerInput.requestEnvelope.request; return request.type === ‘IntentRequest’ && request.intent.name === ‘PlayRhymeIntent’; }, handle(handlerInput, error) { // Execution logic for the handler return handlerInput.responseBuilder .speak(‘Mi dispiace ma questa filastrocca non è presente. Vuoi che te ne suggerisca una io?’) .reprompt(‘Vuoi che te ne suggerisca una io?’) .getResponse(); }, }; // ...
- 45. The importance of “session” for a voice app • The skill session continues as the user speaks to Alexa and your skill responds to Alexa • The skill session ends when the user fails to respond (8 seconds plus 8 more if re-prompt is specified) or when the skill sets the shouldEndSession property to true • Once you are out of the session, you must invoke the skill by saying something, such as "Alexa, open [skill's invocation name]"
- 46. Using attributes Saving the skill state is really important in order to personalize the user experience and to implement multi-turn conversations Session attributes • maintaned during the session • Ex. store the request’s history to implement multi-turn conversation Persistent attributes • persisted on database • Ex. store last interaction date
- 47. Certification:
- 48. a very helpful feedback • follow the submission checklist • write Testing Instructions to help the validation team
- 49. Thank you!