cdkdep-5.ts

export class ExportingStack extends Stack {
  public readonly bucket: Bucket;

  constructor(scope: Construct, id: string, props: StackProps) {
    super(scope, id, props);

    this.bucket = new Bucket(this, 'ExportedBucket');
  }
}

export interface ImportingStackProps extends StackProps { bucket: Bucket }
export class ImportingStack extends Stack {
  public readonly output: CfnOutput;

  constructor(scope: Construct, id: string, props: ImportingStackProps) {
    super(scope, id, props);

    this.output = new CfnOutput(this, 'bucketDomainName', {
      value: props.bucket.bucketDomainName
    });
  }
}

const exportingStack = new ExportingStack(app, 'exp', {});
const importingStack = new ImportingStack(app, 'imp', {
  bucket: exportingStack.bucket
});