Introduction In this guide, we will learn how to connect to Firebase Realtime Database (RTDB) streaming using the REST API and also how to perform PUT operations with an ESP32. Step: 1. Set U...

Introduction In this blog, we explore the differences between Round Robin and Least Connections load balancing algorithms using a test setup with Nginx, Nest.js, and monitoring via ELK Stack (Elas...

Introduction In this post, I will introduce how to set up a monorepo in NestJS and configure it with Docker for real-time development. Let’s begin! What is Monorepo? A Monorepo (short for “m...

Introduction In this post, I will dive deeper into generics and explore them further. Let’s begin! What is generics Generics are a powerful feature in TypeScript that allows you to define reu...

Introduction In this post, we will discuss an issue related to connecting an application container and a PostgreSQL container via TypeORM using docker-compose. Specifically, the connection fails w...

Hi there! In this post, I’ll walk you through the process of building a simple real-time Markdown editor. This project leverages NestJS for WebSocket integration and NextJS with markdown-it for Ma...

In this post, I will share the process of creating and publishing a custom class validator as an NPM package for validating user data in various projects, particularly in Korean contexts like user ...

Build Your Own Blog with GitHub Pages and Chirpy Creating your own blog can feel like a daunting task, especially if you’re new to web development or hosting. But what if I told you that you can s...

Hello, Starting My Development Blog! Hello! My name is YangHoon Kim, and I’m from South Korea. 😊 I’m a 5-year backend engineer working with NestJS and .NET frameworks. Currently, I’m at the cross...