built-in validation using MongoDB

this information copyright by mongoose offical website only education purpose Schema Types 

 All Schema Types

required	default
select	validate
get	set
alias	immutable
transform

---

Indeses

index	unique
sparse

---

String

lowercase	uppercase
trim	match
enum	populate
minlength	maxlength

---

Number

min	max
enum	populate

---

Date

min

max

---

ObjectId

populate

const mongoose = require('mongoose');
mongoose.connect("mongodb://localhost:27017/newDB",{useNewUrlParser: true})
.then(()=>{
    console.log("connction successful...")
})
.catch((err)=>console.log(err));
const playlistSchema = new mongoose.Schema ({
    // define schema
    name:{
        type : String,
        required : true
    },
    sirname : String,
    email : String,
    role : String,
    active : Boolean,
    date : {
        type: Date,
        default : Date.now
    }
})
// collection creation
const PlayList = new mongoose.model("PlayList",playlistSchema)
// create document or insert
const createDocument = async ()=>{
    try{
        const FirstStudent = new PlayList(
            {
              name:"Shreyash",
              sirname :  "KOlhe",
              email : "shreyashkolhe2001@gmail.com",
              role : "front-end",
              active : true,
            })
            
            const result = await PlayList.insertMany([FirstStudent]);
            console.log("Data inserted successfully!");
            console.log(result);
            
    }catch(err){
        console.log(err)
    }
}
createDocument();

use Validation

const playlistSchema = new mongoose.Schema ({
    // define schema
    name:{
        type : String,
        required : true,
        unique : true,
        lowercase : true,
        trim : true,

    },
    sirname : String,
    email : String,
    role : String,
    active : Boolean,
    date : {
        type: Date,
        default : Date.now
    }
})

Data inserted successfully!
[
  {
    name: 'shreyash',
    sirname: 'KOlhe',
    email: 'shreyashkolhe2001@gmail.com',
    role: 'front-end',
    active: true,
    _id: new ObjectId("61ce9f16de4f824303a544c2"),
    date: 2021-12-31T06:11:34.823Z,
    __v: 0
  }
]