schuyler/roboyoz

RoboYoz

Overview

A Twilio IVR application written in TypeScript and hosted in AWS Lambda using DynamoDB, S3, and SNS.

The CDK deployment stack lives in lib/roboyoz-service.ts.

The application logic lives in app/.

• index.ts contains the Lambda handler and associated helper routines.
• The Lambda handler dispatches incoming events to functions in the actions.ts module based on the HTTP request path, using a callback map to allow the action handler to modify the TwiML response.
• messages.ts consolidates the IVR response strings.
• interview.ts provides the DynamoDB database model that tracks the caller state and provides continuity between calls.
• recording.ts logs recording metadata to DynamoDB.

Deployment

npm run build && cdk deploy

Useful commands

• npm run build compile typescript to js
• npm run watch watch for changes and compile
• npm run test perform the jest unit tests
• npx cdk deploy deploy this stack to your default AWS account/region
• npx cdk diff compare deployed stack with current state
• npx cdk synth emits the synthesized CloudFormation template