NestJS with Mongoose complaints about missing properties on findOne service-CodePudding

I have a question on NestJS in combination with Mongoose

The error on a Service function is

TS2740: Type '(Users & Document<any, any, any> & { _id: ObjectId; })[]' is missing the following properties 
from type 'Users': email, password, name, role, and 2 more.

Schema

The following schema is created (almost straight from the docs) :

import { Prop, Schema, SchemaFactory } from '@nestjs/mongoose';
import { Document } from 'mongoose';

export type UsersDocument = Users & Document;

@Schema({ collection: 'users' })
export class Users {
  @Prop({ required: true })
  email: string;

  @Prop({ required: true })
  password: string;

  @Prop({ required: true })
  name: string;

  @Prop({ required: true })
  role: string[];

  @Prop({ required: false })
  passwordforgottentoken: string;

  @Prop({ required: false })
  passwordforgottenexpired: number;
}

export const UsersSchema = SchemaFactory.createForClass(Users);

Controller (only the 'findOne' route)


  @Get('/:email')
  findOne(@Param('email') email) {
    return this.usersService.findOne(email);
  }

The Service (only the 'findOne' function)


  async findOne(email: string): Promise<Users> {
    return this.usersModel.find(
      { email: email },
      { _id: 0, __v: 0, password: 0 },
    );
  }

When I change Promise<Users> to Promise<any> it works.

But why is typescript complaining about missing props?

CodePudding user response：

The .find() method of mongoose returns an array of Users. You probably meant to use the .findOne() method.

async findOne(email: string): Promise<Users> {
  return this.usersModel.findOne(
    { email: email },
    { _id: 0, __v: 0, password: 0 },
  );
}