AWS::AppSync::FunctionConfiguration SyncConfig

Describes a Sync configuration for a resolver.

Specifies which Conflict Detection strategy and Resolution strategy to use when the resolver is invoked.

Syntax

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

JSON

{
  "ConflictDetection" : String,
  "ConflictHandler" : String,
  "LambdaConflictHandlerConfig" : LambdaConflictHandlerConfig
}

YAML

  ConflictDetection: String
  ConflictHandler: String
  LambdaConflictHandlerConfig: 
    LambdaConflictHandlerConfig

Properties

ConflictDetection

The Conflict Detection strategy to use.

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

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

Required: Yes

Type: String

Update requires: No interruption

ConflictHandler

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

• OPTIMISTIC_CONCURRENCY: Resolve conflicts by rejecting mutations when versions don't match the latest version at the server.

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

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

Required: No

Type: String

Update requires: No interruption

LambdaConflictHandlerConfig

The LambdaConflictHandlerConfig when configuring LAMBDA as the Conflict Handler.

Required: No

Type: LambdaConflictHandlerConfig

Update requires: No interruption