Entity

If the cosmos db interface extends SubdocumentBase, it is an Entity on domain side

Cosmos DB Model

/infrastructure/data-sources/cosmos-db/models/physician.ts

export interface PhysicianLicense extends SubdocumentBase {

Each entity requires:

• Domain Context file

• Domain Adapter

Domain Context

/domain/contexts/physician/physician-license.ts

import { Entity, EntityProps } from "../../shared/entity";
import { DomainExecutionContext } from "../context";

export interface PhysicianLicenseProps extends EntityProps {
  // Add fields according to the model
}

export interface PhysicianLicenseEntityReference extends Readonly<PhysicianLicenseProps> {}

export class PhysicianLicense<props extends PhysicianLicenseProps> 
  extends Entity<props> implements PhysicianLicenseEntityReference {
  constructor(props: props, private readonly context: DomainExecutionContext) { 
    super(props);
  }
  // Add getters and setters for the field that was mentioned/defined above
}

• domain context file in same directory as context file of aggregate root it belongs to

• in this example, physician-license.ts is placed in contexts/physician/ directory alongside physician.ts context file

Domain Adapter

/domain/infrastructure/persistence/physician.domain-adapter.ts

class PhysicianLicenseDomainAdapter implements PhysicianLicenseProps {
  constructor(public readonly doc: PhysicianLicense) {}
  get id() { return this.doc.id.valueOf() as string; }
  
  // Add getters and setters for the field that was mentioned/defined in Domain Context file
}

• domain adapter in same file as domain adapter of aggregate root

• if too many adapters in one file, you can split out the domain adapters into multiple files as needed

• in this example, PhysicianLicenseDomainAdapter goes in physician.domain-adapter.ts