日期和 Mongoose Typescript 问题

Question

I'm facing the issue with the Mongoose official document founded here .

import { Schema, Model, model } from 'mongoose';

export interface IUser {
  name: string;
  email: string;
  avatar?: string;
  created: Date;
}

const schema = new Schema<IUser, Model<IUser>, IUser>({
  name: { type: String, required: true },
  email: String,
  avatar: String,
  created: { type: Date, default: Date.now },
});

export const UserModel = model<IUser>('User', schema);

My problem is the created type in IUser is not the same as in schema and got the error:

Type '{ type: DateConstructor; default: () => number; }' is not assignable to type 'typeof SchemaType | Schema<any, any, undefined, unknown> | Schema<any, any, undefined, unknown>[] | readonly Schema<any, any, undefined, unknown>[] | Function[] | ... 6 more ... | undefined'.
  Types of property 'type' are incompatible.
    Type 'DateConstructor' is not assignable to type 'Date | typeof SchemaType | Schema<any, any, undefined, unknown> | undefined'.
      Type 'DateConstructor' is missing the following properties from type 'typeof SchemaType': cast, checkRequired, set, getts(2322)
(property) created?: typeof SchemaType | Schema<any, any, undefined, unknown> | Schema<any, any, undefined, unknown>[] | readonly Schema<any, any, undefined, unknown>[] | Function[] | ... 6 more ... | undefined

Please let me know how to fix this.

Answer 1

Date.now() is a function which returns number . Instead of it, try using new Date() only. Also need to make changes in the type of createdAt to Number .

In the given doc link, createdAt field type is number but here you have written Date .

interface User {
  name: string;
  email: string;
  avatar?: string;
  createdAt: number;
}

OR

createdAt and updatedAt are timestamps which can be used directly without specifying in the schema.

const schema = new Schema<IUser, Model<IUser>, IUser>({
  name: { type: String, required: true },
  email: String,
  avatar: String
},{
    timestamps: true
});

Answer 2

I think this is working

 import { Schema,Document } from 'mongoose';
 export interface IUser {
     name: string;
     email: string;
    avatar?: string;
   created: Date;
}
const schema = new Schema<IUser>({
    name: { type: String, required: true },
    email: String,
    avatar: String,
    created: { type: Date, default: Date.now },

});

export const UserModel = model<IUser>('User', schema);