JavaScript resolver tutorials for Amazon AppSync - Amazon AppSync GraphQL
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

JavaScript resolver tutorials for Amazon AppSync

Data sources and resolvers are used by Amazon AppSync to translate GraphQL requests and fetch information from your Amazon resources. Amazon AppSync supports automatic provisioning and connections with certain data source types. Amazon AppSync also supports Amazon Lambda, Amazon DynamoDB, relational databases (Amazon Aurora Serverless), Amazon OpenSearch Service, and HTTP endpoints as data sources. You can use a GraphQL API with your existing Amazon resources or build data sources and resolvers from scratch. The following sections are meant to elucidate some of the more common GraphQL use cases in the form of tutorials.

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