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class="header_search_close"><i class="las la-times"></i><span class="blind">Close</span></button></header><div class="notification_banner"><p>As of October 1, 2023, LINE has been rebranded as LY Corporation. Visit the new blog of LY Corporation here: <a href="https://techblog.lycorp.co.jp/en" target="_blank" rel="noopener noreferrer">LY Corporation Tech Blog</a></p></div><div class="search_mask"></div><main id="contents" class="contents"><h1 class="blind">Blog</h1><div class="post_wrap"><div class="post_area"><ul class="post_list"><li class="post_list_item"><h2 class="title"><a href="/en/blog/LY-Corporation-Tech-Blog/">Notice: Moved to "LY Corporation Tech Blog"</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1666859718584.jpg?updatedAt=1666859719000"/></div><div class="text_area"><a href="/en/blog/author/LINE Engineering" class="text_name">LINE Engineering</a><span class="text_date">2023-10-02</span><p class="text_desc">LINE Engineering Blog official account</p></div></div><p class="desc"><a href="/en/blog/LY-Corporation-Tech-Blog/"><span class="text">As of October 1, 2023, LINE has been rebranded as LY Corporation. Visit the new blog of LY Corporation here: LY Corporation Tech Blog （https://techblog.lycorp.co.jp/en/blog） LY Corporation Tech Blog's RSS You can still read our previous posts on this site. We greatly appreciate your ongoing support.</span></a></p><ul class="text_hashtag"> ;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/line-achieves-openchain-isoiec-5230-certification/">Behind the scenes: LINE's OpenChain certification and improved open source management</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1666854342112.png?updatedAt=1666854343000"/></div><div class="text_area"><a href="/en/blog/author/LINE Open Source Program Office TF" class="text_name">LINE Open Source Program Office TF</a><span class="text_date">2023-09-27</span><p class="text_desc">We create LINE's OSS policy and culture.</p></div></div><p class="desc"><a href="/en/blog/line-achieves-openchain-isoiec-5230-certification/"><span class="text">Hello, we are the Open Source Program Office TF. The Linux Foundation operates the OpenChain project, which sets the standard specifications for open source management. For about two years, we have been running a large-scale project to apply the standards set by the OpenChain project to LINE. As a result, we have received certification for compliance with ISO/IEC 5230, the international standard for open source management. In this post, we'll first introduce what the OpenChain project is, a</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Open Source">Open Source</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/from-hiveql-to-sparksql-troubleshooting/">Fixing issues we've faced while migrating from HiveQL to Spark SQL</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1692341125763.jpeg?updatedAt=1692349175000"/></div><div class="text_area"><a href="/en/blog/author/Woo-yeong Jeong" class="text_name">Woo-yeong Jeong</a><span class="text_date">2023-09-26</span><p class="text_desc">A data engineer at LINE.</p></div></div><p class="desc"><a href="/en/blog/from-hiveql-to-sparksql-troubleshooting/"><span class="text">Hello. I'm Woo-yeong Jeong, a data engineer from the LINE Plus Messaging Data Eng Dev (NP) team. Recently, I've been working on a task to migrate HiveQL (Hive SQL) jobs to Spark SQL. I primarily used the SQL statement INSERT OVERWRITE TABLE to load data. However, depending on the Spark settings, several issues occurred that did not happen in Hive. In this article, I will introduce what I learned in the process of finding the cause and solution. This article will first introduce the backgrou</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Data/AI">Data/AI</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/AES-GCM-SIV-optimization/">How we optimized the AES-GCM-SIV encryption algorithm</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1668512843446.png?updatedAt=1668512844000"/></div><div class="text_area"><a href="/en/blog/author/Juhong Han" class="text_name">Juhong Han</a><span class="text_date">2023-09-21</span><p class="text_desc">In charge of security technology research and security consulting in the Security R&D team.</p></div></div><p class="desc"><a href="/en/blog/AES-GCM-SIV-optimization/"><span class="text">Hello, this is Juhong Han, who is in charge of security research and consulting in the Security R&D team. There are various security technologies in the world, and among them, cryptographic algorithms are essential for data security. LINE also applies various cryptographic algorithms to protect sensitive data when providing services. And in our team, we are developing cryptographic libraries to make it easier to use for other LINE developers who are not used to cryptographic algorithms. AES-</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Security">Security</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/reliable-and-consistent-metric-anomaly-detection-algorithms/">【Internship】Reliable and consistent metric anomaly detection algorithms</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1695112161414.jpg?updatedAt=1695112162000"/></div><div class="text_area"><a href="/en/blog/author/Fu Xinghong" class="text_name">Fu Xinghong</a><span class="text_date">2023-09-19</span><p class="text_desc"> Messaging Server Dev TeamA</p></div></div><p class="desc"><a href="/en/blog/reliable-and-consistent-metric-anomaly-detection-algorithms/"><span class="text">Nice to meet you! I'm Shin, a rising sophomore at the Massachusetts Institute of Technology studying mathematics and computer science. I'm very grateful to have been given the opportunity to spend an amazing six weeks at the LINE Tokyo office to work on an exciting internship project: "Improving reliability and consistency in metric anomaly detection". Not only was it one of my first few work experiences in the tech industry, it was also my first time in Japan. There were so many learning experi</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Server-side">Server-side</a></li><li><a href="/en/blog/tag/monitoring">monitoring</a></li><li><a href="/en/blog/tag/internship">internship</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/untangle-the-threads-between-rxswift-and-combine/">Untangle the threads between RxSwift and Combine</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1693550459867.jpg?updatedAt=1693550460000"/></div><div class="text_area"><a href="/en/blog/author/Zhihao Zang" class="text_name">Zhihao Zang</a><span class="text_date">2023-09-04</span><p class="text_desc">I am an iOS engineer on the LINE B2B App Dev Team. I work on the LINE app and the LINE Official Account app.</p></div></div><p class="desc"><a href="/en/blog/untangle-the-threads-between-rxswift-and-combine/"><span class="text">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 fr</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/iOS">iOS</a></li><li><a href="/en/blog/tag/Swift">Swift</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/line-live-closing-takeaways-closure-live/">Takeaways from the closure of LINE LIVE</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1692951560398.jpg?updatedAt=1692951561000"/></div><div class="text_area"><a href="/en/blog/author/Hieu Do Duc" class="text_name">Hieu Do Duc</a><span class="text_date">2023-08-31</span><p class="text_desc">Android Mobile Developer from LTV</p></div></div><p class="desc"><a href="/en/blog/line-live-closing-takeaways-closure-live/"><span class="text">We have carried out the closure of the LINE LIVE app. Given that this app had a substantial user base, with many users potentially having made significant payments within the app, we couldn't abruptly remove the app from the store and cease user support. Some of the challenges we needed to tackle included notifying users, offering compensation, and determining how to secure users' acceptance while preserving their trust in our company and group. The plan Step 1: Notification To widely disse</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Server-side">Server-side</a></li><li><a href="/en/blog/tag/LINE LIVE">LINE LIVE</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/mobile-device-management-with-androids-work-profile/">Mobile device management with Android's work profile</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1690788962367.jpeg?updatedAt=1690788963000"/></div><div class="text_area"><a href="/en/blog/author/Prashant Pol" class="text_name">Prashant Pol</a><span class="text_date">2023-08-28</span><p class="text_desc">Android Engineer at LINE messaging application.</p></div></div><p class="desc"><a href="/en/blog/mobile-device-management-with-androids-work-profile/"><span class="text">Many companys desire a communication medium that keeps their employees connected. To achieve this, they often install a company-specific communication app. This can be done either by providing a new dedicated device to the employee or by implementing a bring your own device (BYOD) policy, where the company asks employees to use their personal devices. Under the BYOD policy, companies require employees to install a mobile device management (MDM) app and activate a work profile. Before, I had a ba</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Android">Android</a></li><li><a href="/en/blog/tag/Security">Security</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/from-traditional-cms-to-landpress-content/">Why we're moving from traditional CMS to LandPress Content</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1690859650275.jpeg?updatedAt=1690859651000"/></div><div class="text_area"><a href="/en/blog/author/Healin Yoon" class="text_name">Healin Yoon</a><span class="text_date">2023-08-25</span><p class="text_desc">Backend developer for LandPress Content on the LINE UIT team</p></div></div><p class="desc"><a href="/en/blog/from-traditional-cms-to-landpress-content/"><span class="text">Two years ago, LINE internally launched LandPress Content, a new headless CMS that improved the structure and performance of existing headless CMS. Since then, several LINE services using traditional CMS have begun retooling to use LandPress Content. In this article, we will look at some things to watch out for when migrating from traditional CMS to headless CMS and what improvements have been made since the migration. How headless CMS came to be First, let's look at the background of headless C</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Web Development">Web Development</a></li>;</ul></li><li class="post_list_item"><h2 class="title"><a href="/en/blog/create-figma-translation-plugin-with-vuejs/">How I made a Figma translation plugin with Vue.js after a couple of drinks</a></h2><div class="written_by"><div class="img_profile"><img src="https://vos.line-scdn.net/landpress-content-v2_1761/1680656159922.jpeg?updatedAt=1680659458000"/></div><div class="text_area"><a href="/en/blog/author/Min Seob Kim" class="text_name">Min Seob Kim</a><span class="text_date">2023-07-28</span><p class="text_desc">In charge of backend development at ABC Studio.</p></div></div><p class="desc"><a href="/en/blog/create-figma-translation-plugin-with-vuejs/"><span class="text">Hello. I'm Minseob Kim, a backend developer at LINE ABC Studio. In this post, I'd like to share our recent experience building a Figma translation plugin using Papago. While I won't go into detail on how to build the plugin or go down to the code level, I'll focus on the challenges we faced while building the plugin, how we solved them, and the process we went through as a team. When developing Figma plugins, the Figma Developers site is a good place to start. You'll also need knowledge of HTML</span></a></p><ul class="text_hashtag"> <li><a href="/en/blog/tag/Server-side">Server-side</a></li><li><a href="/en/blog/tag/Front-End">Front-End</a></li>;</ul></li></ul><div class="pagination"><a aria-label="Prev"><i class="la-wp las la-chevron-left"></i></a><a aria-current="page" class="page" hrefLang="en" href="/en/blog">1</a><a aria-current="" class="page" hrefLang="en" href="/en/blog/page/2">2</a><a aria-current="" class="page" hrefLang="en" href="/en/blog/page/3">3</a><a aria-current="" class="page" hrefLang="en" href="/en/blog/page/4">4</a><a aria-current="" class="page" hrefLang="en" href="/en/blog/page/5">5</a><a aria-label="Next" hrefLang="en" href="/en/blog/page/6"><i class="la-wp las la-chevron-right"></i></a></div></div><aside class="sidebar"><div class="search_box"><form role="search" method="GET"><div class="search_input on"><button type="submit" class="btn_search" aria-label="Submit Search for Keyword"><i class="las 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