CosX Blogs
Ideas worth reading.
Engineering insights, AI perspectives, and technical deep dives from the CosX team.
Python 3.14 and the Fall of the GIL: How My Code Finally Used All Eight Cores
The Ghost of the GIL For as long as I’ve written Python, there’s been one phrase that inevitably shows up in every discussion about performance — the GIL. The Global Interpreter Lock, or GIL, has been both a guardian and…
Don’t Get Left Behind: The Smartest Web3 Chains for Forward-Thinking Businesses
As we witness the next wave of internet evolution, Web3 and blockchain technology are redefining how businesses operate, build trust, and scale globally. Whether you’re running a supply chain company, a retail platform,…
Making Sense of React Query: How We Tamed Data-Fetching at CosX
Written by Bishakh Neogi At CosX, we built a platform where performance and responsiveness were non-negotiable. Our components often dealt with live job data, complex filters, and multiple data views switching rapidly. I…
Cryptocurrency Is Still the Investment Opportunity of the Decade
Written By: Abhinil Agarwal An introductory manual for newcomers looking to venture into cryptocurrency investment in the year 2025 Reviewing to my early post on hackernoon in Feb,2024, I am extending the article with mo…
Beyond LGTM: Bringing Speed and Quality to Code Reviews with AI Agents
Written By: Gurleen Kaur The Pain and the Promise of Code Reviews Here at CosX.ai, we make no compromises on shipping rock-solid code. As a team building complex backend infrastructure and AI-automated systems, we’ve alw…
Onesignal Integration with Next.js PWA
Written By: Bishakh Neogi Problem Statement In today’s fast-paced digital world, ensuring timely and engaging communication with users is paramount for any web application. Push notifications have become a vital tool in…
A/B Testing using Statsig with Next.js application
Written by: Bishakh Neogi Problem Statement Imagine you’re a developer working on a Next.js web application. You want to improve user experience by testing different features, but you’re unsure which version will perform…
Viem and Wagmi Integration with OperaMini
Written By: Bishakh Neogi Problem Statement Integrating a Next.js application with MiniPay in today’s fast-paced world poses numerous challenges, particularly in achieving seamless integration with blockchain wallets and…
Deploy Java SpringBoot & React.js with four steps on AWS
Deployments can become a huge pain if any config is missed while setting up the deployment infra. Almost every time we face the below situation if deployment steps are not done correctly. I did everything right, followed…
Deployment: Next/React.js and Spring Boot on AWS EC2 with Nginx
If you’re looking to host your Next.js/React.js frontend application along with your Spring Boot backend on AWS EC2 with Nginx as a reverse proxy, this article aims to provide beginner-friendly guide to help you seamless…
Handling API responses with Advance Typescript
Writing simple TypeScript is easy and fun, but when it comes to advanced TypeScript, it becomes complex and difficult. One of the most challenging use cases that engineering teams encounter is integrating backend APIs wi…
Improve Performance of React-Native App
React-Native(RN) apps suffer huge performance issues as compared to native apps. During initial development days such challenges are ignored but as soon as the app grows developers find it difficult to improve. Sometimes…
What’s New With React Native v0.64
React Native version 0.64 is here. It’s already been 3 weeks since it was released and it’s full of new surprises. Though I suggest waiting for a couple of more weeks before you upgrade to the new version. I also believe…
Lazy Loading With React-Native
There are enough blogs on Lazy Loading using FlatList but how do we implement lazy loading when we are not using FlatList. This blog will help you do that. Sometimes scrollView may contain images and other components to…
Get Hired, by answering these questions in React-Native
React Native(RN) developers are in very high demand, startups, as well as tech giants are hunting them to improve their products. As the demand is going up for RN, a lot of people are trying, practicing, and mastering th…
Things you should do as React-Native Developer
React Native(RN) community has evolved a lot since 2015 from version 0.1.0 to 0.62.2. They do a lot of breaking changes in their major releases and on top of that Google, does the rest. With so much change going on, it’s…
Push Notifications in React-Native with Firebase
This blog will help you build a complete push notification engine for your react-native application using firebase. Just follow along and comment in the section below if you find any problems. There are various open-sour…
Design Practices for React Native App
After spending nearly 6 years building applications with React-Native, I learned a lot of lessons hard way. This blog will help you to not commit the mistakes that I did and your codebase will be in good shape any time y…
Integrate Jenkins with Github (Private repo)
Connecting Jenkins to a private Github repository can be a pain if not done properly. Also, I would recommend you to check out how things work for a public Github repo. If you have already tried it, good. Otherwise, foll…
Integrate Jenkins with Github (Public repo)
One of the simple and interesting tools in DevOps is Jenkins. Another tool which is generally used is Github, which has one of the biggest open source community, is no more required to explain. In this blog, we will see…
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