LY Corporation Tech Blog: Recent Episodes
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We are promoting the technology and development culture that supports the services of LY Corporation and LY Corporation Group (LINE Plus, LINE Taiwan and LINE Vietnam).
Hello, we're Jong Sic Kim and Sanghyuk Nam from LINE Plus ABC Studio, developing apps. Our team is ...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
In the realm of software development, managing complex states is an unavoidable challenge, particula...
Hello. We're Kang Hyun Yang and Byungchan Lee, backend developers at LINE Plus Contents Service Engi...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
In the fast-paced world of data analytics, moving from legacy systems like Hive to modern platforms...
Hello, I'm Juhong Han from the Security R&D team. Our team is responsible for researching, developin...
Hello. This is Ujin Jeong, an Android engineer developing LINE Album and sharing services, and Seung...
I'm John Baligod, an Android app engineer at LY Corporation.This article presents the unique way o...
Hello from Chang Hyun Lee, an ML engineer developing the recommendation system for LINE VOOM, and H...
"Demae-can" is one of Japan's largest food delivery services which started in 2000. Demae-can wa...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, we're Doyeon Kim and Younghyun Kim from the Security R&D team, responsible for developing the...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hi there. I'm Zhihao Zang, an iOS engineer on the LINE App OA Dev team. We are the team behind the O...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
This page lists past articles from the weekly series "Improving code quality".At LY Corporation's d...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
With the introduction of generative AI in the industry, new methods are emerging to enhance producti...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
IntroductionHello, I'm Healin Yoon from the UIT team. At LY Corp., we operate an in-house headless ...
IntroductionHello, we are Doyeon Kim, Younghyun Kim, Kyungjoon Park, Charles Hubain, and Sanghwan A...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is ...
In a previous article, Measuring voice quality in the LINE app, we introduced how the LINE app adapt...
Three years ago, we internally launched LandPress Content, a new headless CMS that improved the str...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is ...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Ishikawa, and I develop the mobile clients for the LINE messaging app.This article is th...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.This article is...
Hello, I'm Munetoshi Ishikawa, a mobile client developer for the LINE messaging app.To boost our de...
Hello, I am Inoue from the Developer Relations Team of LY Corporation's Fukuoka Development Divisio...
Hello, I'm Youngjae Kim from ABC Studio. I oversee development of Demaecan, Japan's leading delivery...
Hi there. I'm Zhihao Zang, an iOS engineer on the LINE App OA Dev team. We are the team behind the O...
Event reportThere are over 100 employees in the LY Fukuoka Development Division, and over half of ...
Hello, I'm Zhan(湛) from the Technology Incubation Division. I work in research and development of im...
Hello, I'm Heewoong Park, a Machine Learning (ML) engineer from the AI Services Lab team. Our team i...
Large-scale change (LSC) within software development often presents massive challenges. It's a scena...
In the ever-evolving landscape of iOS development, a myriad of database libraries have emerged, each...
Following the merger of LINE Corporation and Yahoo! Japan Corporation, we launched a subscription-ba...
Hello, this is Youngjae Kim from ABC Studio. I've directed and developed over 10 open-source project...
Hello. We are Jaehoon Yoo and Donggyu Seo, working on the LINE Pay team. The Pay SRE team is respons...
Hello, I'm Yuhan Chen, an iOS developer from the Messenger Product App Dev 2 Team.IntroductionThe ...
It's crucial to have various deployment strategies to ensure that new versions of your software is ...
The LINE app offers real-time communication services such as LINE one-on-one calls, LINE group calls...
When undertaking a project one must balance between the upfront development cost and long term cost ...
Hello. I'm Seyoung Cho from the Service Client Dev 1 team that develops the Android version of LINE....
I'm Wei Wang from the LINE B2B App Development Team 2. Apple recently announced its new Observation ...
A/B tests play a crucial role in decision-making at LINE NEWS as they help determine what modificati...
LINE and Yahoo! JAPAN became LY Corporation on October 1, 2023.Going forward, we'll share our findin...
Question: What kind of bug can only be easily reproduced on a device as old as an iPhone 7 or older?
Hi there. I'm Zhihao Zang, an iOS engineer on the LINE B2B App Dev team. A big part of what we do involves developing and maintaining the LINE Official Account app. Today, I'd like to share our experience (including some of the hurdles we faced) in migrating the LINE Official Account app from using RxSwift to using Combine.
Background: RxSwift and Combine
We use RxSwift, a Reactive Programming framework, for the LINE Official Account app. RxSwift has a solid reputation and a pretty long history: the earliest rel
Introduction
Hello from Donghyeok Kim, Jina Kim, and Seoyeon Lee. We are in charge of open source management at LINE and are currently working in the Developer Relations team and the Open Source Program Office TF to bring LINE's development culture closer to the open source development culture.
In 2021, we introduced the LINE Open Source Sprint event in the article below. In this post, we'll share the process and results of LINE Open Source Sprint 2023.
While mobile device storage capacity is getting bigger and bigger nowadays, user data is also increasing in size as well. Users can have tons of extremely high quality photos or videos which can eat away their storage capacity very fast. Moreover, digital content can be easily shared among users in many social media apps or messaging apps such as our own LINE app or Instagram to name a few. This data duplication can even put more pressure on device storage as well. Our LINE app is not only the same but also allows user to share their photos in their original size in chat, which can occupy a significant amount of storage capacity. The important thing is that device storage capacity is limited and often can't be changed after purchase. Users have no choice except to clean up their data, buy more cloud storage, or switch to a new device with bigger capacity.
Many LINE users may send messages that contain important data they would want to keep locally on their device. This is a p
Hello, everyone. I'm Nao, a developer of LINE's Messaging Server.
In 2014 we introduced a new development and release process for LINE Server (Blog post in Japanese only). Since then, the development environment and code has changed. In this post, I'd like to introduce the points that have been improved.
LINE's Messaging Platform consists of many Server Applications. One of them, Messaging Server, is a platform responsible for messaging functions, and we're working on multiple projects in parallel with developers from other teams.
Previous Development and Release Process
When working on multiple projects at the same time, it's easy to get conf
Hello, I'm Keisuke Yamashita (keke) from the Verda Reliability Engineering team. In this post, I'd like to describe Verda's journey towards Infrastructure as Code and our vision of resource (for example, virtual machines, load balancers, Redis clusters) provisioning and management on Verda. This entry will also cover the necessary tooling preparations for using Terraform as a platform-wide resource provisioning and management tool.
What is Verda?
Verda is LINE's private cloud based on OpenStack, a project that began in 2016. It's a public cloud similar to Amazon Web Services (AWS) or
We at the Open Source Program Office TF are finding many ways of cultivating a culture where LINE engineers and open-source ecosystems come together in a close relationship. In this post, we would like to highlight one of those many efforts: How LINE became a Silver Sponsor for the Apache Software Foundation. About the Apache Software Foundation The Apache […]
The post LINE as Apache Software Foundation’s Silver sponsor appeared first on LINE ENGINEERING.
We at the Open Source Program Office TF are working diligently to close the distance between LINE’s development culture and open-source development culture. With how many of LINE’s developers are dependent on open-source software, many of them may have had one of the following thoughts at some point: “One of these days I should really […]
The post LINE Open Source Sprint 2021: Promoting open-source contribution appeared first on LINE ENGINEERING.
LINE supports not only one-on-one but multi-user conversations as well. There were two types of multi-user conversations in LINE, Rooms and Groups, for different uses. Rooms were designed for temporary conversations in general. When creating a Room, you didn’t need to give it a name. When inviting a friend into the Room, you didn’t need to wait for their approval, […]
The post Unification of Group Chat on the LINE App appeared first on LINE ENGINEERING.
My name is Hanatani (@potato4d). I am a member of the Front-End Dev.9 team at the Front-end Development Center (commonly called UIT).
In this post, let me introduce the sponsorship activities of the front-end domain led by UIT.
The post LINE has started to donate to Prettier – why companies should support OSS appeared first on LINE ENGINEERING.
TL;DR:The baseline for web development in 2022 is: low-spec Android devices in terms of performance, Safari from two years before in terms of Web Standards, and 4G in terms of networks. The web in general is not answering those needs properly, especially in terms of performance where factors such as an over-dependence on JavaScript are […]
The post The baseline for web development in 2022 appeared first on LINE ENGINEERING.
This is Sato from the Developer Success team looking back at LINE DEVELOPER DAY 2021, which took place during November 10 to November 11 this year. I would like to thank every attendee and staff member who made the event possible. Due to COVID-19, this year's event was once again exclusively online. In this post, I'd like to take a look at some statistics relating to this year's event.
The post LINE DEVELOPER DAY 2021 retrospective report appeared first on LINE ENGINEERING.
Hello, this is MJ from LINE's Security Team.
The LINE Anti Phishing promotion begins today (December 1).
The post About the LINE Anti Phishing promotion appeared first on LINE ENGINEERING.
My name is Naoyuki Tachibana. I participated in the LINE internship joining the Network Development Team of the Verda Department for six weeks from September 6th. I developed an extension of the SRv6 function for the IS-IS daemon of FRR, which is the open-source routing platform LINE used in the data center, as the theme of the internship. I will introduce the result in this article.
The post 【Internship Report】Design and Implementation of FRRouting IS-IS SRv6 Extension appeared first on LINE ENGINEERING.
Hello. My name is Ryoto Suzuki. I am a first-year master's student at the Graduate School of the University of Tokyo.
I participated in the LINE internship of the engineer/working-type course for six weeks from August 23rd.
During this internship, I belonged to the IU Dev Team of the Data Platform Department and was engaged in the improvement of the search function of the data catalog "IU Web," which was used in LINE. In this blog, I will introduce the details.
The post 【Internship Report】 Implementation of the IU Web search completion function appeared first on LINE ENGINEERING.
Hello, this is Kyungjoon from the Security R&D team. I work as a FIDO (Fast Identity Online) engineer. Continuing from our last post FIDO at LINE: A First Step to a World Without Passwords, I would like to introduce you to FIDO2, and also share my experiences from participating in the interoperability testing event hosted by the FIDO Alliance earlier this year in March. Lastly I will talk about our very own LINE FIDO2 server, which will be made available as an open-source project.
The post FIDO at LINE: FIDO2 server as an open-source project appeared first on LINE ENGINEERING.
I work on the backend code that supports some of LINE’s location-based features, and we’ve recently had an exciting project to improve our support for keeping track of nearby points of interest (PoIs) — shops, museums, anything you might want to know that you were close to. In order to deliver this as quickly as […]
The post Profiling a simple performance issue in a JVM-based server appeared first on LINE ENGINEERING.
LINE has become a large platform that is host to a myriad of features over the years, and with each new feature added, so were new menus and items added to the settings menu as well. With more than 47 settings menu and 185 items that cover everything from personal info, themes, permission, and notifications […]
The post How we added settings searching to the LINE app appeared first on LINE ENGINEERING.
In my last post, Monitoring Prometheus metrics from Armeria, we took a look at how you can monitor Armeria metrics using Grafana. In this post, I would like to show you how you can customize Armeria metrics to suit your needs. The sample code in this post uses the same sample code from Monitoring Prometheus metrics from […]
The post Customizing Armeria metrics appeared first on LINE ENGINEERING.
In this post, we’ll be taking a look at how you can monitor Prometheus metrics collected with Armeria. For those of you who are trying Armeria for the first time, I will be adding simple practice samples so that you can follow along. Practice exercise The practice session was designed on macOS Big Sur. Let’s now take a look […]
The post Monitoring Prometheus metrics from Armeria appeared first on LINE ENGINEERING.