When deploying a back end application you might need to have multiple instances for handling large traffic. A load balancer is used to manage these large number of requests between the multiple servers. Layer 7 load balancing operates at the high‑level application layer. It can make a load‑balancing decision based…

Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust. On 13th May 2020, the v1.0 of Deno was officially launched. Deno has been developed by Ryan Dahl who also had a major role in the development of Node.js. Take…

What is Continuous integration? Continuous Integration is the practice of merging in small code changes frequently — rather than merging in a large change at the end of a development cycle. The goal is to build healthier software by developing and testing in smaller increments. - Travis-ci After setting up…

In my previous blog, I talked about unit testing. With unit testing, you can check if the various units of your code are functioning properly. But that is not enough. In the end, the units should work properly after integration not just individually. Let's see how we can make sure…

This blog explains with an example, how to do unit testing in node js. To know why we do unit testing or testing in general, visit this blog, Unit testing — why? by Corneliu Dascalu. First I will give a brief introduction to unit testing then we will jump to…

In one of my previous articles, I talked about the basics of Redis. Today I am going to talk about how to use Redis as cache in a node js application with MongoDB as Database. Prerequisites:- Node js should be installed on your system Redis cache should be installed on…

The definition for Redis given in the official Redis website is: Redis is a open source(BSD licensed), in memory data structure store used as a database, cache and message broker. An in-memory database is a data store which resides in the main memory. It means once the system is restarted…