To Nha Notes | Jan. 2, 2022, 11:04 p.m.
https://github.com/dabit3/awesome-aws-appsync
https://www.serverless.com/blog/building-chat-appliation-aws-appsync-serverless/
https://dev.to/dabit3/building-chatt---a-real-time-multi-user-graphql-chat-app-3jik