Idempotency Is Easy Until the Second Request Is Different

이 글은 API 설계에서 중요한 개념인 멱등성(idempotency)의 복잡성을 다룬다. 단순히 키-값 조회로 멱등성을 구현하는 것은 쉬우나, 동일 키에 대해 다른 요청이 들어올 때 발생하는 문제와 이를 처리하는 방법에 대해 상세히 설명한다. 특히, 요청의 동등성 판단, 재시도 정책, 응답 재생, 그리고 멱등성 키의 범위 설정과 해시 계산 방법 등이 핵심 주제로 다뤄진다. 멱등성 구현 시 발생할 수 있는 다양한 예외 상황과 이를 해결하기 위한 데이터베이스 설계 및 API 응답 전략도 제시한다. 이는 신뢰성 높은 API 설계에 필수적인 내용이다.

https://blog.dochia.dev/blog/idempotency/

#idempotency #apidesign #reliability #http #softwareengineering

Ever shipped an API and regretted your generic signatures later? Wildcards everywhere. Confusing bounds. Mental overhead. Michel Charpentier breaks down why variance matters—and why #Java still feels heavy here.

Read + apply: https://javapro.io/2026/01/27/what-i-still-miss-my-most-wanted-java-features/

#APIDesign #Generics #JVM

Most devs think backend = APIs.
It’s not.
It’s:
• Efficient request handling
• Clean architecture
• Smart DB design
• Caching strategies
• Security
• Reliability under load
Great backend ≠ just code
It’s systems that don’t break in the real world.
Tools change. Principles don’t.

https://jaswalaryan.space/article/backend-development-beyond-apis-complete-guide

#BackendDevelopment #WebDevelopment #APIDesign #SoftwareEngineering #SystemArchitecture #DatabaseDesign #Caching #Security #PerformanceOptimization #DevOps #Scalability #CodeQuality #Programming

Currently integrating with an API that uses pagination.

To get the next page of results you just provide a page=x parameter.

The number of pages info is in the results, so you can use that to build the pagination engine.

What happens if you go over the number of pages available? You get the last page of results again, with a 200 response code.

Fair play I guess. A simple trap to catch the idiot developer who can't count :D

#api #apiDesign

🎥 𝗩𝗶𝗱𝗲𝗼 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝘄𝗶𝘁𝗵 𝗘𝗿𝗶𝗸 𝗪𝗶𝗹𝗱𝗲 & 𝗧𝗵𝗶𝗹𝗼 𝗙𝗿𝗼𝘁𝘀𝗰𝗵𝗲𝗿 𝗼𝗻 𝘁𝗵𝗲 𝗖𝗣𝗦𝗔-𝗔𝗱𝘃𝗮𝗻𝗰𝗲𝗱 𝗟𝗲𝘃𝗲𝗹 𝗠𝗼𝗱𝘂𝗹𝗲 𝗔𝗣𝗜 – 𝗥𝗲𝗮𝗹 𝗜𝗻𝘀𝗶𝗴𝗵𝘁𝘀 𝗶𝗻𝘁𝗼 𝗠𝗼𝗱𝗲𝗿𝗻 𝗔𝗣𝗜 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 ✨

#APIs drive scalable systems, business value, and AI-ready architectures. Erik Wilde and Thilo Frotscher, two of the module’s curators, share insights on design, governance, DX & AX, and building APIs that truly work.

Watch the full interview 👉 https://t1p.de/td3mh

#iSAQB #Softwarearchitecture #CPSA #AI #API #APIDesign

Friday, March 20, 2026

Day 78 of Year 3
Day 809 overall since Jan 1, 2024

nhcarrigan-mentorship:
• Strengthened backend API workflows
• Reviewed request validation and route handling
• Ensured consistent response formatting across endpoints

Consistency in APIs = reliability in production. Building systems that behave exactly as expected.

#JavaScript #BackendDevelopment #APIDesign #NodeJS #ExpressJS #PrismaORM #WebDevelopment #DevJourney #SoftwareEngineering #CodingProgress #100DaysOfCode

Mastering FastAPI Request Bodies: Handling User Profiles and Token Authentication

In 2026, building scalable backend services requires a robust understanding of how API endpoints process complex payloads. This session explores the standard patterns for managing data models and secu...

📺 Watch here: https://www.youtube.com/watch?v=ABt48n3S7UA

##FastAPI ##Python ##BackendDevelopment ##APIDesign