Best Practices for Referencing User ID in Posts Module

[rezabayati1]

hi
suppose we have a Posts module responsible for managing post entities.
Each post needs to associate with the user who created it

What's the most appropriate way to establish this relationship while adhering to Domain-Driven Design principles?
How to add associate user id to every post?

[augustolopez]

import { Slug } from './value-objects/slug.value-object';

export interface PostProps {
  title: string;
  slug: Slug;
  userId: string;
}

[Sairyss]

Just store userId in a post. Check older discussion in this repo, there are some examples. For example, this one: #132

[rezabayati1]

so i should just pass user aggregate id as a prop to create post command?
what is use case of metadata in command super class ? it contain a userId prop
can you give me an example of how pass userId as metadata?

[Sairyss]

so i should just pass user aggregate id as a prop to create post command?

Yes new CreatePostCommand({ post, userId })

what is use case of metadata in command super class ? it contain a userId prop

For debugging purposes. There is a comment in the base class explaining why there is a userId in metadata: https://github.com/Sairyss/domain-driven-hexagon/blob/master/src/libs/ddd/command.base.ts

can you give me an example of how pass userId as metadata?

new Command({ metadata: userId })