Typical Authenticated Lambda function invocation via API Gateway which will perform a DynamoDB read/write operation

1. Acquiring a token passing credentials.
2. Invoking the API Gateway endpoint passing the JWT token.
3. API Gateway validates the token.
4. Upon successful Auth token validation, API Gateway routes the request to the desired destination lambda function.
5. Retrieve any credentials stored.
6. Retrieve / Save the incoming payload to the database.