Update user profile page using mongoose express js - node.js

Question

I am working on personal project. one of common functionality i am implementing is allowing users to update their profile but having hard time doing it.
here is what i did so far
form
<form
action="/users/doctor-profile?_method=PUT"
method="POST"
enctype="multipart/form-data"
>
<input type="hidden" name="_method" value="PUT" />
<div class="form-group">
<input
type="text"
class="form-control"
id="name"
name="name"
/>
</div>
<div class="form-group">
<label for="phone">Phone</label>
<input
type="tel"
class="form-control"
id="formGroupExampleInput"
name="phone"
/>
</div>
<div class="form-group">
<label for="exampleInputEmail1">Email</label>
<input
type="email"
class="form-control"
id="formGroupExampleInput"
name="email"
/>
</div>
<button type="submit" class="btn btn-primary">Save changes</button>
</form>
here is my user model
const mongoose = require("mongoose");
const UserSchema = new mongoose.Schema({
name: {
type: String,
required: true,
},
email: {
type: String,
required: true,
},
password: {
type: String,
required: true,
},
phone: {
type: String,
required: true,
},
});
const User = mongoose.model("User", UserSchema);
module.exports = User;
here is my post route
router.post("/users/doctor-profile", (req, res) => {
const { name, email,phone } = req.body;
const _id = ObjectId(req.session.passport.user._id);
console.log(_id)
USer.findOne({ _id: _id })
.then((user) => {
if (!user) {
req.flash("error_msg", "user not found");
res.redirect("/users/doctor-profile");
}
if (typeof name !== "undefined") {
user.name = name;
console.log(user.name);
}
if (typeof email !== "undefined") {
user.email = email;
}
if (typeof phone !== "undefined") {
user.phone = phone;
}
user.save().then((User) => {
req.flash("success_msg", "details updated successfully");
res.redirect("/users/profile");
});
})
.catch((err) => console.log(err));
});
console output
application running on port 5000
mongodb connection successfull
5ef5bc20261beb1e6c1c25a3
but it does not update fields in database.

Answer 1

try this:
user.save(function (err, resolve) {
if(err)
console.log('db error', err)
// saved!
});

Answer 2

You had a typo in your post route js file
here is the code you got the typo on:
USer.findOne({ _id: _id })
USer should be User