How OpenAPI Is Transforming API Client Development

Time
2025年8月09日 10:00 ~ 10:30
Speaker
4geru
Room
TR409-2
Collaborative Notes
https://hackmd.io/r1qg25Z_lg
EnglishIntermediate
Let's read the open source code

Abstract

OpenAPI-driven automation is changing how we build and maintain API clients. This session shares real-world lessons from migrating the LINE API Ruby SDK from manual maintenance (v1) to automated, OpenAPI-based generation (v2). We’ll cover the “God Class” problem, update delays, and how automation improved quality and speed.

About the Speaker

4geru

4geru

I’m a LINE API Expert, recognized by LINE as an external professional skilled in their APIs.

For the last 7 years, I’ve been working as both a Ruby engineer and an active LINE API Expert.

In addition to my work, I enjoy organizing hands-on developer events 3 to 4 times each year. I don’t just use the official LINE API packages; I also help improve them by creating Pull Requests (PRs).