Sometimes dealing with DB processes in a Rails application consume a lot of time. Often there are a bunch of small and simple DB queries that go endless. For example, bulk insertions or bulk updates in tables. Dividing it into various background jobs is an idle solution. In a few scenarios, we can't prefer background jobs e.g. the change you apply, makes the existing data invalid. In this article, we will see how to complete a large set of DB queries under minutes which would otherwise take hours if not optimized. It's a better practice to create a rake

Continuous Integration(CI) and Continuous Deployment(CD) play an essential role, especially when working in a team. In our project, we are following Agile methodology & we do multiple releases during the week. To ensure that the build is generated without any error, CI/CD proves advantageous. "There should be two tasks for a human being to perform to deploy software into a development, test, or production environment: to pick the version and environment and to press the “deploy” button." David Farley For every feature, we create a separate pull request. Every time on commit, CI automatically triggers

To enhance the security of a web application having a user authentication workflow, we use a security method called 2FA. It is also known as Two Factor Authentication(type of Multi-Factor Authentication). In this blog post, we will see how to implement email-based 2FA in ActiveAdmin auth of a Ruby on Rails application. In the email-based 2FA approach, when logging in with an email and password, an OTP will be sent on a registered email address. Upon entering the OTP, it will successfully authenticate and the session will be started. Also, we will see the following additional functionality and customizations

Writing unit tests is more of an art than a skill, and understanding what to test for comes with experience and/or mistakes. We look for the percentage of test coverage for examining the health of an application. However, the "coverage percentage" might be misused or overlooked. In particular, it falls victim to Goodhart’s law, which says: “When a measure becomes a target, it ceases to be a good measure”. Whenever we start writing test cases for the sake of improving the code coverage, we miss the whole point of testing and rather introduce Tautological Tests - poorly designed

Karan Valecha believes that the secret of great work, is the love you have for your work. In this chat, Karan shares about his experiences, learning and culture at Kiprosh.

Ruby does not have any entry point to the code it is executing. Compare that to other languages like C, C++, Java, etc., which has a main() method in some way. And this main() is the entry point to the code. But in Ruby, we can open a file with a .rb extension and write our code at the top-level like: foo = 'Great Scott!' puts foo # => Great Scott!... and Ruby will execute the file for us. You'll get introduced to this top-level scope as global scope throughout most tutorials. Even though the intention is correct, the terminology as

Netlify offers free static website hosting with features like continuous deployment services, user-authentication, and form-handling. But static sites have limitations to perform server-side operations. These limitations have been addressed by Netlify by providing features to create Serverless Functions. In this blog, we'll create a simple application that displays a positive quote when we click the button. The quote displayed is returned from the API we'll create using netlify lambda function and deploy it. So let's get started. What is Serverless Computing? Serverless computing (or commonly referred to as serverless) is an execution model where cloud providers execute the piece of

React was released with an update to React's core (Reconciler) algorithm. This new algorithm is called Fiber. Before diving deep into what is Fiber and how it works, it is must to know the React's reconciler algorithm as Fiber is nothing but the re-implementation of this previous algorithm. You can refer to the reconciler algorithm on React Official doc here. React ReconciliationIt's an algorithm that React uses to diff one tree with another to find which parts need to be updated in the next update. E.g. whenever the component's props or state gets updated, whether to make an actual

When we are about to test a dynamic API request via Postman and realize that we need to pass a freshly generated signature in the headers, what do we generally do? For each request, we generate the signature using server-side code and copy-paste it in the headers. Sounds like a tedious job, doesn’t it? We faced a similar situation in our application where we had to pass a signature in the headers while testing an API. The signature was generated by encoding all the request parameters using the user's secret key. If any of the request parameters changed, we

Mamta Kukreja, a vibrant Kiprosher and a food lover at heart shares insights, regarding her work and career choices. Q: You have worked earlier as a freelancer and remotely, before joining Kiprosh. How do you feel about switching to a full-time job? Mamta: The opportunities to grow are very slim when you are working as a freelancer, as you do not have a team or mentor to guide you. In the case of a full-time job, an individual is a part of a team or project, where the mentoring relationship with the team leads, help the more experienced coder/associate