Connecting Event Busses Across AWS Accounts

Published 5 min read
Learn how to send messages between event busses across multiple AWS accounts.
Learn how to send messages between event busses across multiple AWS accounts.
AWS AppSync is a fully managed GraphQL service that can be used to build serverless backends. It can connect to data sources like DynamoDB, Lambda, RDS, etc. It also provides full support for subscriptions.
In this chapter we'll look at how authentication works for serverless apps in AWS. We'll be looking at the differences between authentication and authorization, the various authentication options, and go into detail for IAM and Cognito.