AWS::AppSync::Resolver SyncConfig - AWS CloudFormation

AWS::AppSync::Resolver SyncConfig

Describes a Sync configuration for a resolver.

Contains information on which Conflict Detection as well as Resolution strategy should be performed when the resolver is invoked.


To declare this entity in your AWS CloudFormation template, use the following syntax:



The Conflict Detection strategy to use.

  • VERSION: Detect conflicts based on object versions for this resolver.

  • NONE: Do not detect conflicts when executing this resolver.

Required: Yes

Type: String

Update requires: No interruption


The Conflict Resolution strategy to perform in the event of a conflict.

  • OPTIMISTIC_CONCURRENCY: Resolve conflicts by rejecting mutations when versions do not match the latest version at the server.

  • AUTOMERGE: Resolve conflicts with the Automerge conflict resolution strategy.

  • LAMBDA: Resolve conflicts with a Lambda function supplied in the LambdaConflictHandlerConfig.

Required: No

Type: String

Update requires: No interruption


The LambdaConflictHandlerConfig when configuring LAMBDA as the Conflict Handler.

Required: No

Type: LambdaConflictHandlerConfig

Update requires: No interruption