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Web Development

Working with Payment Gateways: How to Build Maintainable Systems

If you've ever had to integrate payments into an app, you know it can quickly get tricky. Money is involved, networks drop requests, users retry buttons, and external services send async updates. If you don't structure your logic cleanly from day one, your system can easily become a headache to maintain. In this article, I want to share my understanding of working with payment gateways in the most maintainable way.

KUZUE5 min read

Web Development

The Developer's Guide to Modern Observability: Uptime, Live Logging, Better Stack & Axiom

Observability is the practice of understanding the internal state of a system based on its external outputs (logs, metrics, and traces). This guide covers the core fundamentals, system architectures, and practical applications of modern monitoring tools, focusing on Better Stack and Axiom.

KUZUE8 min read

Web Development

tanstack query simplified

Here I have compiled my understanding of React Query (TanStack Query) over the months and simplified it into my personal study reference. This is mainly written for myself, but I believe it can also serve as a good starting guide for someone who is new to learning TanStack Query.

KUZUE15 min read

Web Development

# Understanding useTransition()

Normally, all state updates in React are urgent. If you click a button or type in an input and it triggers a slow render, the browser freezes until the render is complete. useTransition fixes this by making updates "non-urgent" (interruptible).

KUZUE4 min read

Web Development

# React Memoization and cache(): My Personal Reference Guide

React automatically memoizes fetch() GET requests during a render. This means that if the same fetch() request is made multiple times with the same arguments within the same render, React performs the network request only once and reuses the result for subsequent calls.

KUZUE2 min read

Web Development

Understanding GitHub OAuth Authentication in Next.js (Part 1)

In this article, we'll build GitHub OAuth Authentication from scratch without relying on authentication libraries like Auth.js or NextAuth. The goal is not just to get it working, but to understand what actually happens behind the scenes whenever a user clicks "Continue with GitHub".

KUZUE4 min read