database

An Introduction to Database

A database is a collection of data, arranged in such a way that you can access and manage it easily. The database is vast topic concepts like index, ACID, CAP theorem, types of databases, normalization, Sharding, Consistency, MapReduce, Eventual Consistency is some of the interesting topics in this field. This blog will be a series…

Tech

SOLID principles in C#

Have you encountered a codebase where a single class/module doing so many things and any small change in a module breaks another and you think to yourself how this happened, if only you knew how to prevent this in the first place? Or a case when a senior developer reviews your PR and says move…

Tech

with_options in rails

I have recently encountered this method, which saved my time and helped me follow the DRY principle Use case: Consider a scenario, you have a list of trains and you have to apply filters on like depature_time, arrival_time, train_number, arrival_station, depature_station, number of coaches, etc. For that, you have to write interaction. The input will…

Tech

Configuring Debugger for Jruby in vscode

Recently, I configured a debugger for my jruby application on VScode. I have spent almost 1 day on this and few posts discuss this issue. My jruby version is 9.2.9.0. so I can guarantee the following steps definitely will work for this version. Step 1: Install debug related gems Step 2: Configuring launch.json Create a…

Tech

How Recycler view works in android

I recently did a mini-project Quote app, I used listview for that. The project started consuming lots of memory and CPU whenever I scroll through the quotes. After reading few articles and watching videos. I realized there is a better way to show a list in android, which is Recycler View. In this post, we…

Tech

How to create resume as node library

So I recently saw a linkedin post where the guy created his resume using node js module. So if you wanna impress your recruiter or interviewer you can just share your npm package. This have become easy because we have a library which already provide with the template, we just have to populate the data….

Tech

How to use SSH public key authentication

One of the ways to access a remote server is using a ssh with password and another cool way is to use public-key authentication where you don’t need to type a password along with that we store necessary details in ~/.ssh/config so that with minimal keystroke we will be able to access the remote server….