support adding multiple cats for testing purposes

apps/nestjs/src/cats/cats.service.ts

@@ -9,7 +9,14 @@ import { Cat } from './schemas/cat.schema'
 export class CatsService {
   constructor(@InjectModel(Cat.name) private readonly catModel: Model<Cat>) {}
 
-  async create(createCatDto: CreateCatDto): Promise<Cat> {
+  async create(
+    createCatDto: CreateCatDto | CreateCatDto[],
+  ): Promise<Cat | Cat[]> {
+    if (Array.isArray(createCatDto)) {
+      const createdCats = await this.catModel.insertMany(createCatDto)
+      return createdCats
+    }
+
     const createdCat = await this.catModel.create(createCatDto)
     return createdCat
   }

apps/nestjs/src/cats/schemas/cat.schema.ts

@@ -6,7 +6,6 @@ export type CatDocument = HydratedDocument<Cat>
 
 @Schema()
 export class Cat implements CatInterface {
-  @Prop()
   _id: string
 
   @Prop()