--see updates.erb
Data can be pushed using
curl -d '{ "auth_token": "YOUR_AUTH_TOKEN", "text": "Data To Be Updated" }' \http://localhost:3030/widgets/<data-id>
curl -d '{ "auth_token":"123456", "items": [{"label": "Leave Plan", "value": ""},{"label": "Estimation", "value": ""}] }' http://localhost:3030/widgets/feedback
Data will be saved at history.yml
Reference: Shopify/dashing#56