aws-cdk-lib.ReferenceStrength

ReferenceStrength Enum

Controls how cross-stack references to a resource are resolved.

Source

core/lib/cross-stack-reference-strength.ts

Type last changed

v2.258.0 · 4 Jun 2026

Example

declare const bucket: s3.Bucket;
declare const consumer: Stack;

new CfnOutput(consumer, 'BucketArn', {
  value: Stack.consumeReference(bucket.bucketArn, ReferenceStrength.WEAK),
});

Members

Member	Description
STRONG	Strong reference: uses CloudFormation Export/Import (same region) or ExportWriter/ExportReader custom resources (cross-region).
WEAK	Weak reference: uses Fn::GetStackOutput to read an output directly from the producing stack.
BOTH	Both strong and weak mechanisms are created (transitional state).