In this post, we will explore how to connect Hasura to a PostgreSQL database to create a subgraph, how AWS AppSync connects to Amazon DynamoDB to create another subgraph, and finally how Hasura can federate these APIs into a supergraph.

The ability to integrate and aggregate data on demand emerges as more crucial than ever. Composable APIs represent a paradigm shift toward more dynamic, robust, and user-centric software development.