Node.js

The exec() function in Mongoose isn’t a feature added on a specific date to the language; rather, it’s a method provided by Mongoose, an Object Data Modeling (ODM) library for MongoDB and Node.js, that has been part of the library......

This concise, example-based article will walk you through a few different approaches to do upsert with Mongoose (update if exist, insert if not). Solution 1: Using Model.findOneAndUpdate() This approach leverages the......

Overview This article explores how to retrieve documents from a MongoDB collection using Mongoose, where specific fields are neither null nor empty. Mongoose is a MongoDB object modeling tool designed to work in an asynchronous......

Introduction Working with MongoDB in a Node.js application, you’ll frequently encounter scenarios where you need to compare an Object ID (_id) with a string. Mongoose, a popular ODM (Object Data Modeling) library for MongoDB and......

Introduction Building applications with databases often necessitates the use of unique identifiers that increment with each new record. In SQL databases, this is typically handled out of the box. However, in MongoDB, which Mongoose is......

The Problem The “Cannot overwrite model once compiled” error in Mongoose occurs, commonly due to attempting to recompile a model using the same schema with the same name, or requiring a module that defines a model multiple......

In applications involving time-sensitive data, having a mechanism to automatically expire and remove documents can be incredibly useful. In MongoDB, this functionality is provided with TTL (Time To Live) indexes, which can be utilized in......

This tutorial explains the steps necessary to push an object to an array within a document using Mongoose, the popular MongoDB object data modeling (ODM) library for Node.js. Throughout this guide, I will be assuming that you have a......

Introduction Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment like Node.js. Defining indexes at the schema level is an essential feature in Mongoose, which can increase query performance and......

Understanding the Topology Destroyed Error When you encounter the MongoError: Topology was destroyed message in your Node.js application using Mongoose, it indicates that an operation was attempted on a MongoDB connection that was......

Introduction When working with MongoDB, particularly with large collections, performance and scalability are two pivotal concerns. Mongoose, a MongoDB object modeling tool designed to work in an asynchronous environment, adds a layer......

Introduction Mongoose is a robust tool for managing data in MongoDB applications. In this tutorial, you’ll learn how to streamline your models and foster relationships between collections with the power of document references.......