@TransformToDynamo and @TransformFromDynamo not being called

[pawelzebrowski]

I can't seem to get @TransformToDynamo and @TransformFromDynamo to fire. I've followed all variations and examples I could find.

Minimal reproduction

@Entity({
  name: "test",
  primaryKey: {
    partitionKey: "test_{{testId}}",
    sortKey: "test_{{testId}}",
  },
})
export class Test {
  constructor(created: Date) {
    this.created = created;
  }

  @AutoGenerateAttribute({
    strategy: AUTO_GENERATE_ATTRIBUTE_STRATEGY.UUID4,
  })
  testId: string;

  @Attribute()
  @Type(() => Date)
  @TransformToDynamo(({ value }: { value: Date }) => Test.toDynamo(value))
  @TransformFromDynamo(({ value }: { value: string }) => Test.fromDynamo(value))
  created: Date;

  static toDynamo(value: Date): string {
    console.log("toDynamo", value);
    return value.toISOString();
  }

  static fromDynamo(value: string): Date {
    console.log("fromDynamo", value);
    return new Date(value);
  }
}

Called with

const test = new Test(new Date());
const entityManager = getEntityManager();
await entityManager.create(test);

Results in

Unsupported type passed: Fri Sep 29 2023 09:14:38 GMT-0700 (Pacific Daylight Saving Time). Pass options.convertClassInstanceToMap=true to marshall typeof object as map attribute.

and neither console statement being emitted. As far as I can tell, neither of the two transformers is firing.

Any hints to point me in the right direction?

node 18.16.0
aws-sdk 3
typescript 5.2.2
typedorm 1.15.4
class-transformer 0.5.1

[pawelzebrowski]

After some digging, I discovered that it seems to have to do with typescript "target". Anything less than es2022 doesn't appear to call the functions, but as soon as target is es2022/esnext, it works.

Unfortunately, setting things to es2022/esnext comes with it's own set of problems, for example #236.

The same appears to be the case with the examples in https://github.com/typedorm/typedorm-examples.

Is there a typescript configuration where this library works as expected?

[mareksnincak]

Hello, I'm facing the same issue. I think the same issue was already mentioned in the past as well in #229. Solution may be to define relaxed peerDependencies as suggested here: #341. Do you think this would be possible @whimzyLive or is there some blocker for this approach?