프로젝트와 사례 연구
실전 프로젝트: 결제 게이트웨이 마이크로서비스, 풀스택 앱, Django 백엔드, RAG 시스템 등.
J.P. Morgan Personal Investing — BackEnd Engineer Mock Interview Pack
Format: 60minute pair programming on HackerRank IDE, 1–2 businesslogic problems, Java/Kotlin preferred. Team context: Stockmarket broker Personal Investing platform. Goal: Translate spoken business rules into clean, test
글 읽기 →Payment Gateway Q&A
What it is: ArgumentCaptor is a Mockito utility that captures the actual argument passed to a mocked method during execution, so you can inspect it afterwards.
글 읽기 →Payment Gateway Challenge
This project is a Spring Boot application that implements a simple payment gateway based on the requirements from the challenge:
글 읽기 →How to fulfill everything described in README.md
This document maps each commitment in the project README.md to concrete actions and suggested code. The upstream interview template is paymentgatewaychallengejavahttps://github.com/ckorecruitment/paymentgatewaychallengej
글 읽기 →Microservices Teaching Guide — Payment Gateway
A complete, handson course for refactoring a Spring Boot monolith into a productiongrade microservices system, and deploying it to AWS. Source monolith: ../paymentgatewaychallengejava Target system: this folder paymentga
글 읽기 →Payment Gateway — Microservices Edition
A microservices reimagining of the paymentgatewaychallengejava../paymentgatewaychallengejava Spring Boot monolith.
글 읽기 →Architecture Decision Records ADRs
ADRs document why we made a decision, not just what we did. We use the Michael Nygard formathttps://cognitect.com/blog/2011/11/15/documentingarchitecturedecisions. Each ADR has a status: Proposed, Accepted, Superseded.
글 읽기 →AWS Deployment — Step by Step
Companion to ../MICROSERVICESTEACHINGGUIDE.md../MICROSERVICESTEACHINGGUIDE.md §15. Goal: take the eight microservices in this repository from docker compose up to a productiongrade deployment on AWS using ECS Fargate, RD
글 읽기 →CI/CD with GitHub Actions
Companion to ../MICROSERVICESTEACHINGGUIDE.md../MICROSERVICESTEACHINGGUIDE.md §16.
글 읽기 →Observability
Companion to ../MICROSERVICESTEACHINGGUIDE.md../MICROSERVICESTEACHINGGUIDE.md §12. Distributed systems are only as good as your ability to understand them. This document covers logs, metrics, traces, dashboards, and aler
글 읽기 →Terraform — Payment Gateway Microservices on AWS
Reference IaC for the AWS deployment described in ../../docs/02awsdeployment.md../../docs/02awsdeployment.md. Status: skeleton. It compiles terraform validate and demonstrates the module structure. Before applying it to
글 읽기 →Payment Gateway Design Documentation
This project implements a Payment Gateway API that allows merchants to process card payments and retrieve payment details. The gateway validates incoming payment requests, forwards valid payments to an acquiring bank sim
글 읽기 →Florence Hotel Website Flask
This project is a Flask implementation of the Florence hotel frontend based on florencehote.html.
글 읽기 →Run and deploy your AI Studio app
This contains everything you need to run your app locally.
글 읽기 →Deploy PawMatch to AWS EC2 Ubuntu
This guide covers syncing the Next.js frontend and Flask backend to an EC2 instance, running them under systemd, and using nginx with existing Let’s Encrypt certs so HTTPS on port 443 serves the site while the app listen
글 읽기 →PawMatch Backend API
A Flaskbased backend API for the PawMatch cat matching and health analysis platform.
글 읽기 →or
This is a Next.jshttps://nextjs.org project bootstrapped with createnextapphttps://nextjs.org/docs/app/apireference/cli/createnextapp.
글 읽기 →Password CRUD Demo Application
A demonstration web application for password CRUD operations with plain text storage demo purposes only.
글 읽기 →Software Requirements Specification SRS
Product: Password CRUD Next.js + Express.js + Prisma + SQLite – Plain Password Demo Version: 1.1 Date: 29Aug2025 Author: ChatGPT “Cathy”
글 읽기 →Android Development Exercises
1. Start Small: Begin with simple modifications 2. Read Documentation: Use official Android docs 3. Experiment: Try breaking things and fixing them 4. Ask Questions: Don't hesitate to seek help 5. Practice Regularly: Con
글 읽기 →Android App Development with Kotlin Learning Guide
Explanation: lateinit var: Declares a variable that will be initialized later common in Android var: Mutable variable can be changed val: Immutable variable cannot be changed after initialization
글 읽기 →Android Development Learning Path
Week 1 Deliverables: Working Android Studio setup Basic Kotlin knowledge Understanding of Android project structure First modifications to the Blackjack app
글 읽기 →Blackjack (21) Overview
Blackjack 21 Overview Blackjack, also known as 21, is a popular card game often played in casinos. The goal is to have a hand value close to 21 without going over.
글 읽기 →Kotlin Syntax Quick Reference
// Mutable variables var count = 0 // Can be changed var message: String? = null // Nullable String
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