AWS AppSync resolver reference (JavaScript)

The following sections contain the APPSYNC_JS runtime and JavaScript resolver reference:

JavaScript resolvers overview - Learn more about how resolvers work in AWS AppSync.
Resolver context object reference - Learn more about the context object and how it's used in resolvers.
JavaScript runtime features for resolvers and functions - Learn more about supported runtime features and using utilities to simplify code.
JavaScript resolver function reference for DynamoDB - Learn more about how resolvers interact with DynamoDB.
JavaScript resolver function reference for OpenSearch - Learn more about resolver request and response structure and interactions with OpenSearch Service.
JavaScript resolver function reference for Lambda - Learn more about resolver request and response structure and interactions with Lambda.
JavaScript resolver function reference for EventBridge data source - Learn more about resolver request and response structure and interactions with EventBridge.
JavaScript resolver function reference for None data source - Learn more about resolver request and response structure and interactions with NONE data sources.
JavaScript resolver function reference for HTTP - Learn more about resolver request and response structure and interactions with HTTP endpoints.
JavaScript resolver function reference for Amazon RDS - Learn more about resolver structure and interactions with RDS.

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Best practices

AWS AppSync JavaScript resolvers overview