Skip to content
Related Articles

Related Articles

Mongoose | findOneAndUpdate() Function
  • Last Updated : 20 May, 2020
GeeksforGeeks - Summer Carnival Banner

The findOneAndUpdate() function is used to find a matching document and update it according to the update arg, passing any options, and returns the found document (if any) to the callback.

Installation of mongoose module:

  1. You can visit the link to Install mongoose module. You can install this package by using this command.
    npm install mongoose
  2. After installing mongoose module, you can check your mongoose version in command prompt using the command.
    npm version mongoose
  3. After that, you can just create a folder and add a file, for example index.js. To run this file you need to run the following command.
    node index.js

Filename: index.js

const mongoose = require('mongoose');
// Database connection
    useNewUrlParser: true,
    useCreateIndex: true,
    useUnifiedTopology: true,
    useFindAndModify: false
// User model
const User = mongoose.model('User',{
    name: { type: String },
    age: { type: Number }
// Find document matching the condition(age >= 5)
// and update first document with new name='Anuj'
// This function has 4 parameters i.e. filter,
// update, options, callback
User.findOneAndUpdate({age: {$gte:5} }, 
    {name:"Anuj"}, null, function (err, docs) {
    if (err){
        console.log("Original Doc : ",docs);

Steps to run the program:

  1. The project structure will look like this:
    project structure
  2. Make sure you have installed mongoose module using following command:
    npm install mongoose
  3. Below is the sample data in the database before the function is executed, You can use any GUI tool or terminal to see the database, like we have used Robo3T GUI tool as shown below:
  4. Run index.js file using below command:
    node index.js

  5. After the function is executed, You can see the database as shown below:
    new Database

So this is how you can use the mongoose findOneAndUpdate() function which finds a matching document and updates it according to the update arg, passing any options, and returns the found document (if any) to the callback.

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up
Recommended Articles
Page :