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rg-archetype-aws-lambda-alexa-apiai

Amazon AWS Lambda function that can be used as a endpoint for a Alexa skill and ApiAi.

FYI The usage of archetype and meaning I got from maven.

Technologies

  • Eclipse 4.5.2 Mars
  • Jdk1.8.0_77
  • AWS Lambda Java support libraries
  • Java Alexa Skills kit
  • Amazon AWS
  • Amazon Alexa
  • Api.ai

Get and build Jar Files

Note: these are already in the lib folder

Aws

Download AWS Lambda Java support libraries. Use maven to build java-core

> cd {aws_lamba_source_home}\aws-lambda-java-core
> mvn package

Alexa

Download Java Alexa Skills kit.

> cd {alexa_source_home}
> mvn package

ApiAi

Download Java SDK for api.ai.

> cd {apiai_source_home}
> mvn package

Gson

Gson Java serialization/deserialization libary.

> cd {gson_source_home}
> mvn package

Simple Logging Facade for Java

Download, at the time 1.7.25 was latest.

Create Archive

Update Alexa Skill Application Id

To get your Alexa skill id, Go to Amazon Developer -> Alexa -> Alexa Skills Kit - Get Started -> select the link View Skill ID. Go to org.rg.archetype.aws.lambda.alexa.MainSpeechletRequestStreamHandler and update the supported ids list in the class to contain you Alexa skill id.

Build jar

> cd {rg-archetype-aws-lambda-alexa-apiai home}
> mvn assembly:assembly -DdescriptorId=jar-with-dependencies package
or
> mvn package

Alexa

Create AWS Lambda Function

  • Go to the AWS Console and click on the Lambda link. Note: ensure you are in us-east or you wont be able to use Alexa with Lambda.
  • Click Create function or Get Started Now button.
  • Skip selecting a blueprint and click Author from scratch button.
  • On add trigger, choose Alexa Skills Kit and select Next
  • On configure function -> basic information - assign a name and for the runtime choose Java 8
  • On configure function -> Lambda function code - for the code, upload {rg-archetype-aws-lambda-alexa-apiai home}\target\rg-archetype-aws-lambda-1.0.jar
  • On configure function -> Lambda function handler and role - for the handler enter org.rg.archetype.aws.lambda.alexa.MainSpeechletRequestStreamHandler.
  • On configure function -> Lambda function handler and role - for role, select Create a custom role, for IAM Role select lambda_basic_excution and choose Allow
  • On configure function -> Lambda function handler and role - for existing role, select lambda_basic_excution
  • Click Next
  • Click Create function

Alexa Skill Setup

The only thing I will cover here is configuring the endpoint.

Configuration tab

For 'Service Endpoint Type' choose AWS Lambda ARN (Amazon Resource Name) For 'Default', go to the AWS console and copy the ARN for the Lambda function you just created (usually in the upper right corner of the console window)

Api.ai

Create AWS Lambda Function

  • Go to the AWS Console and click on the Lambda link. Note: ensure you are in us-east or you wont be able to use Alexa with Lambda.
  • Click Create function or Get Started Now button.
  • Skip selecting a blueprint and click Author from scratch button.
  • I did not add any triggers, select Next
  • On configure function -> basic information - assign a name and for the runtime choose Java 8
  • On configure function -> Lambda function code - for the code, upload {rg-archetype-aws-lambda-alexa-apiai home}\target\rg-archetype-aws-lambda-1.0.jar
  • On configure function -> Lambda function handler and role - for the handler enter org.rg.archetype.aws.lambda.apiai.MainRequestStreamHandler.
  • On configure function -> Lambda function handler and role - for role, select Create a custom role, for IAM Role select lambda_basic_excution and choose Allow
  • On configure function -> Lambda function handler and role - for existing role, select service-role/execute_my_lambda
  • Click Next
  • Click Create function

Build API to expose a Lambda Function

http://docs.aws.amazon.com/apigateway/latest/developerguide/getting-started.html

Helpful Resources

Create maven pom.xml and archive code

https://docs.aws.amazon.com/lambda/latest/dg/lambda-java-how-to-create-deployment-package.html https://docs.aws.amazon.com/lambda/latest/dg/java-create-jar-pkg-maven-no-ide.html https://github.com/amzn/alexa-skills-kit-java/blob/master/samples/pom.xml

Alexa Skill and AWS Configuration

https://developer.amazon.com/alexa-skills-kit/alexa-skill-quick-start-tutorial

Apiai

http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-api-as-simple-proxy-for-lambda.html#api-gateway-proxy-integration-lambda-function-java https://www.raizlabs.com/dev/2017/01/build-ai-assistant-api-ai-amazon-lambda/