具有 typescript 的节点 js：定义接口时 mongoose 架构日期类型属性出错

Question

I have a mongoose schema that looks like this:

import mongoose from 'mongoose';
const { Schema } = mongoose;

const tourSchema = new Schema<ITour>({
  name: String,    
  price: {
    type: Number,
    default: 0,
  },
  description: {
    type: String,
    trim: true,
  },
  createdAt: {
    type: Date,
    default: Date.now(),
    select: false,
  },
  startDates: [Date],
});

export const Tour = mongoose.model("Tour", tourSchema);

And an interface That i'm adding to the schema:

interface ITour extends mongoose.Document{
  name: string;
  price: number;
  description: string;
  createdAt: Date;
  startDates: Date[];
}

I'm getting the a type error in the created at property when i'm adding the "default" property to it. When i'm removing the default property everything is working. The type of the createdAt is DateConstructor and the return type of Date.now() is a number. How can I resolve this problem?

Answer 1

You can use the built-in timestamps option for your Schema.It will automatically add createdAt field to your schema. link

const tourSchema = new Schema<ITour>({
  name: String,    
  price: {
    type: Number,
    default: 0,
  },
  description: {
    type: String,
    trim: true,
  },
  {
    timestamps: true
  },
  startDates: [Date],
});