JavaScript runtime features for resolvers and functions

The APPSYNC_JS runtime environment provides functionality similar to ECMAScript (ES) version 6.0. It supports a subset of its features and provides some additional methods (utilities) that are not part of the ES specifications. The following topics list all the supported language features.

Note

Currently, this reference only applies to runtime version 1.0.0.

Topics

• Core features
• Primitive objects
• Built-in objects and functions
• Globals
• Error types
• Built-in utilities
• Time helpers in util.time
• DynamoDB helpers in util.dynamodb
• HTTP helpers in util.http
• Transformation helpers in util.transform
• String helpers in util.str
• Extensions
• XML helpers in util.xml