API call fails when i put required:true model schema - mongodb

Question

I am trying to make an api endpoint and this is my model schema MongoDB
const mongoose = require("mongoose");
const UserSchema = new mongoose.Schema(
{
username: {
type: String,
required: true,
unique: true,
},
email: {
type: String,
},
password: {
type: String,
},
profilePic: {
type: String,
default: "",
},
},
{ timestamps: true }
);
module.exports = mongoose.model("User", UserSchema);
API logic
const router = require("express").Router();
const User = require("../models/User");
//REGISTER
router.post("/register", async (req, res) => {
try {
const newUser = new User({
username: req.body.username,
email: req.body.email,
password: req.body.password,
});
const user = await newUser.save();
res.status(200).json(user);
} catch (err) {
res.status(500).json(err);
}
});
module.exports = router;
index.js
const express = require("express");
const app = express();
const dotenv = require("dotenv");
const mongoose = require("mongoose");
const authRoute = require("./routes/auth");
const cors = require("cors");
const bodyParser = require("body-parser");
app.use(
bodyParser.urlencoded({
extended: false,
})
);
app.use(bodyParser.json());
app.use(express.urlencoded({ extended: true }));
app.use(cors());
app.use(express.json());
dotenv.config();
mongoose
.connect(process.env.MONGO_URL, {
useUnifiedTopology: true,
useNewUrlParser: true,
})
.then(() => console.log("DB Connected!!!"))
.catch((err) => {
console.log("did not work", err);
});
app.use("/api/auth", authRoute);
app.use("/", (req, res) => {
console.log("main url");
});
app.listen("5002", () => {
console.log("server running");
});
When I am trying to POST call to localhost:5002/api/auth/register , with the following body
{
"username": "testname",
"email": "test#gmail.com",
"password": "122",
}
I get the following error
{
"errors": {
"username": {
"name": "ValidatorError",
"message": "Path `username` is required.",
"properties": {
"message": "Path `username` is required.",
"type": "required",
"path": "username"
},
"kind": "required",
"path": "username"
}
},
"_message": "User validation failed",
"name": "ValidationError",
"message": "User validation failed: username: Path `username` is required."
}
When I remove required:true this api call works but i cant see the fields for username, email, password in collection of the database.
What am I doing wrong here?