NOTE: this workflow works with ANY smart home assistant with voice calling functionality eg. Google Hub, Amazon Alexa, Apple HomePod ...
The idea behind it: Patients have Alexas. Nurses have Relays. A patient should be able to request assistance from an alexa which would then notify a nurse on their relay.
How it works: A patient would be able to speak "call my nurse" on the alexa. This goes through Twilio's voice API and hits an endpoint on our express server. Based off the Alexa's number, the server is able to select the assigned nurse for that patient and initiate a workflow on that nurse's device. On the nurse's relay, it will notify the nurse of the patient's name and room number and will then give an option to either repeat the request or acknowledge it. Once acknowledged, it will notify the patient via alexa that the nurse has acknowledged the request.
/voice This is the endpoint that Twilio hits when it recieves a phone call
/stall This is the url that redirects until it recieves a response from a relay. The purpose of this is to stall the call so twilio does not end the call on the alexa
clone the repository:
git clone https://github.com/relaypro/relay-alexa-workflow.gitMake sure you have NodeJS installed, or download it from NodeJS
Run the following to make sure all relevant libraries and packages are installed:
npm installThere are a couple of environment variables. Create a .env file by running touch .env and place the variables and their values in the .env file.
Eg.
MONGODB_URI=<input>
RELAY_ID=<input>
RELAY_WF_ID=<input>
SAMPLE_NUMBER=<input>
IBOT_ENDPOINT=<input>
CLIENT_ID=<input>
OAUTH_ENDPOINT=<input>
TOKEN=<input>
SUBSCRIBER_ID=<input>
TOKEN_USERNAME=<input>
TOKEN_PASS=<input>Register a workflow on your Relay device by
relay workflow:create --type=http --uri=wss://relay-alexa.herokuapp.com/alexa --name nurse-assist <device_id>To run the application:
npm start