What does appsync do?

AWS AppSync is a fully managed service that simplifies the development of GraphQL APIs by providing a way to securely connect applications to data sources like databases, APIs, and microservices. It facilitates real-time data synchronization, enabling applications to automatically update with the latest data without requiring manual refreshes. AppSync also supports offline data access, allowing applications to function seamlessly even when not connected to the internet. Overall, it streamlines the process of building scalable and efficient applications.