Resolver mapping template utility reference

AWS AppSync defines a set of utilities that you can use within a GraphQL resolver to simplify interactions with data sources. Some of these utilities are for general use with any data source, such as generating IDs or timestamps. Others are specific to a type of data source.

Topics

• Utility helpers in $util
• AWS AppSync directives
• Time helpers in $util.time
• List helpers in $util.list
• Map helpers in $util.map
• DynamoDB helpers in $util.dynamodb
• Amazon RDS helpers in $util.rds
• HTTP helpers in $util.http
• XML helpers in $util.xml
• Transformation helpers in $util.transform
• Math helpers in $util.math
• String helpers in $util.str
• Extensions