MongoDB provides a variety of operators that are suitable for various purposes such as aggregation pipeline, text search, geospatial query, array manipulation, etc. They are highly advanced, flexible, and easy to understand, allowing applications built on MongoDB to perform tasks…
Whenever we are developing an application, there is doubt in choosing the appropriate database. Picking either a SQL database or a NoSQL database is straightforward. If you want to store your data in the form of tables having relations to…
Logging is an essential feature of finding and fixing problems in applications. It helps us to grab crucial info related to the application, like errors, warnings, messages, etc. By using logging libraries in Node.js, we can track the metrics and…
NoSQL databases have become popular nowadays, providing the flexibility to design your schema to store data of different data types in a specific order. It is preferred over SQL when building large-scale applications and mainly with Node.js. If you want…
The HTTPS server in Node.js can be created using the HTTPS default module. HTTPS servers provide additional security by encrypting data that is being transmitted from a server to a client, plus it uses SSL/TLS certificates to verify the client.…
The distinct() function in MongoDB is used to retrieve distinct values. However, it has a problem. This function is a very basic function, it can only select distinct values for one field at a time. So, if there is a…
Node.js can use a Date object that provides information about a timestamp. This object can be used for various purposes such as getting the current time, comparing dates, formatting dates, reminders, etc. Date objects represent a specific point in time…
MongoDB aggregation allows developers to perform complex operations while working with data stored inside a collection of a MongoDB database. One of the operations is the “group by” operation, i.e. $group, which is used to group documents based on the…
A MongoDB cluster is used to denote a replica set of a collection of datasets distributed across multiple servers to speed up the overall processing during read and write operations. In this tutorial, we will learn about clusters in MongoDB,…
In this tutorial, we will learn about sharding in MongoDB. It is time we learn an intermediate-level topic. Sharding in MongoDB is one such topic. Now, sharding in layman’s terms means that mechanism that stores data on multiple machines. This…
