Consumes events from Kafka and inserts them into Postgres.

Run on Heroku:

1. Follow the instructions to deploy the Dreamhouse Web App (Kafka Branch) on Heroku

2. 

3. Attach the Dreamhouse Web App's Kafka to this app:

    # Get the Kafka Addon ID (e.g. kafka-something-12345)
    heroku addons:info heroku-kafka -a DREAMHOUSE_WEB_APP_HEROKU_APP_NAME
   
    # Attach the addon to the newly deployed app
    heroku addons:attach KAFKA_ADDON_ID -a DREAMHOUSE_KAFKA_POSTGRES_HEROKU_APP_NAME
   

4. View some properties in your Dreamhouse Web App

5. Check that the view events were consumed and then added to Postgres:

    heroku pg:psql -c "SELECT * FROM interactions" -a DREAMHOUSE_KAFKA_POSTGRES_HEROKU_APP_NAME
   

Run Locally:

1. Install Node.js

2. Fetch the NPM dependencies: npm install

3. Get the Kafka environment variables from a Heroku app:

    heroku config -s -a DREAMHOUSE_KAFKA_POSTGRES_HEROKU_APP_NAME > .env
    set -o allexport
    source .env
    set +o allexport
   

4. Start the app: npm run dev