Setup tables

1. Create table:

notes:
  id: int
  note: text

Setup AWS Lambda

Create a lambda function in AWS. This will be our webhook.

1. Create a function.
2. Select Node.js 8.10 as the runtime.
3. Select "start from scratch".
4. Add API gateway as a trigger.
5. Add an API to API gateway.
6. Add the code in index.js. The handler function of your lambda will be the index.handler.

Add the trigger in Hasura GraphQL

1. In events tab, add a trigger
2. Select all insert, update, delete operations for the trigger.
3. Paste the API endpoint of your AWS lambda as the webhook.