Method findOne

sample/06-mongoose/src/cats/cats.service.ts:21–23

(id: string)

  }

  async findOne(id: string): Promise<Cat> {
    return this.catModel.findOne({ _id: id }).exec();
  }

  async update(id: string, updateCatDto: UpdateCatDto): Promise<Cat> {
    return this.catModel