AWS AppSync with GraphQL API

AWS AppSync:

https://aws.amazon.com/appsync/

Ed's Blog Post:

https://aws.amazon.com/blogs/mobile/building-a-serverless-real-time-chat-application-with-aws-appsync/

AWS Online Tech Talks: 

https://aws.amazon.com/about-aws/events/monthlywebinarseries/

AWS re:Invent 2018: 

https://reinvent.awsevents.com/