Stronger typed Repository wrapper

[tjsb]

Have been playing around with this. Something that might be of use which I am doing is wrapping the Repository class in a stronger typed wrapper - just so that you get better IDE support etc: Here I'm using a custom cast function - but you can achieve the same with return types eg Promise<T> etc

const cast = <T>(x: T) => x;

export class TypedRepository extends Repository {
  async get<T>(id: unknown) {
    const entity = await super.get(id);

    return cast<T>(entity);
  }

  async commit<T>(
    entity: T,
    options?: {
      forceSnapshot: boolean;
    },
  ) {
    const e = await super.commit(entity, options);

    return cast<T>(e);
  }
}