AWS AppSync is a managed service offered by Amazon Web Services (AWS) that simplifies the process of building real-time applications by allowing developers to create flexible APIs that securely access, manipulate, and combine data from multiple sources.
With AWS AppSync, developers can build scalable and responsive GraphQL APIs that can work with a variety of data sources, including AWS services like DynamoDB, Lambda, and Elasticsearch, as well as custom data sources like HTTP endpoints, SQL databases, and RESTful APIs.
AWS AppSync provides features like offline data synchronization, real-time updates, and fine-grained access control, which makes it easier for developers to build powerful, reactive applications that can work offline and online seamlessly.
Overall, AWS AppSync helps developers to accelerate development cycles, reduce complexity, and enhance the user experience of their applications by simplifying the process of building scalable and responsive GraphQL APIs.