Using AppSync ​

The project relies on AWS AppSync which creates serverless GraphQL and Pub/Sub APIs that simplify application development through a single endpoint to securely query, update, or publish data. One of the key advantages is GraphQL subscriptions which is used to receive the chatbot responses in real time using streaming.

Schema ​

The GraphQL Schema defining the possible operatiosn can be found in lib/chatbot-api/schema/schema.graphql. Once deployed, AWS AppSync provides a Querying tool on the AWS Console which can be used to explore and test the APIs.

Authentication ​

AWS AppSync supports built in authentication modes. This project relies on the @aws_cognito_user_pools one to authenticate Amazon Cognito users.