Center Model having an array of ObjectIds of Physician Models

center.schema.ts

import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
import { Document, Types } from 'mongoose';
import { ICenter } from 'src/types';
import { Physician } from '.';

export type CenterDocument = Center & Document;

@Schema()
export class Center implements ICenter {
  @Prop()
  ip: string;

  @Prop()
  password: string;

  @Prop()
  salt: string;

  @Prop({ type: [Types.ObjectId], ref: Physician.name })
  physicians: Physician[];
}

export const CenterSchema = SchemaFactory.createForClass(Center);