LINE Things (IoT platform) at IFA, Europe’s largest consumer electronics exhibit

Hello, this is Jose from the Developer Product department. I’d like to share my visit to the IFA held in Berlin from August 31 to September 5. Introducing IFA IFA, Internationale Funkausstellung, is the largest consumer electronics exhibition in Europe, held annually around September in Berlin, which started off as a global exhibition on broadcasting technology. In the midst …

Redis Lua script for atomic operations and cache stampede

Hello, this is Kagaya, a member of the LINE GAME Platform development team. It’s nice to be back after writing a post on Lazybones (Japanese post), in 2016. Redis and LINE GAME Platform The LINE GAME Platform uses Redis — in-memory no SQL database — for its main database, mainly for cache. For instance, we are using …

LINE engineer wins third place in the biggest global IT contest in the world, Imagine Cup 2018

Hello you all, this is Kunihiko Sato, a member of the LINE AD Platform. Imagine Cup, an IT conference organized by Microsoft was held in Seattle from July 23–25 2018, which I attended as a representative of Japan. I’d like to share my experience there and story on winning third place. Imagine Cup is open to students, …

Effective code review

Now and then, code quality becomes an issue in a team and everyone starts to talk about how we can improve unit test and code coverage, but not for long. Eventually, it’s not a hot topic anymore as people get busy. But then, you will experience déjà vu probably within a year, because the same idea comes back the next year. My name is Bryan Liu, a quality engineer working on test automation of LINE NOW, and I’d like to share what I did to facilitate unit test and code review process in LINE Taiwan.

Introducing Flex Message, a new message type for LINE Messaging API

A new type of message has been added to the LINE Messaging API, Flex Message. We’ve been using a template-typed message in which you could place plain text, stickers, images, media types like videos, buttons and URLs. This type is quite useful for where the user had to select an option from available options, but there were restrictions such as the maximum number of buttons allowed, which is 4, for the button template, or the order in which you had to arrange the elements for a layout — title, content, and buttons.

What is Flex Message?

The Flex Message type frees you from the old restrictions and enables you to arrange layouts as desired. There is a display frame, but you can change the layout as you do with HTML code, and each component is neatly displayed. Here are a few of the layouts you can compose with Flex Message.

Interview with MEB

This article is an interview conducted by Jirawat Karanwittayakarn, a technology evangelist at LINE Thailand, with MEB Corporation. MEB Corporation is a well-known leader in the e-book industry in Thailand. We had a chance to meet them and ask how they integrated their service with LINE Pay.

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Interview with Double A

This article is an interview conducted by Jirawat Karanwittayakarn, a technology evangelist at LINE Thailand, with Double A Corporation, a company servicing cloud-based printing. Double A Corporation has integrated their service with LINE Pay, and we asked how they were going with it.

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Write the Docs Prague 2018 Recap

Hi all, this is Jeongil from Technical Writing team in LINE. I am based in Korea, and have been in the field of Technical writing for the past ten years. Currently, my main job is writing and managing Clova documentation for third-party developers.

Perhaps this is the first time for you to hear of technical writing or may be you have heard about it but don’t exactly know what it is. In Korea, there is no degree programs for technical writing and in fact, it is quite difficult to find a person of this profession, especially the ones in the software industry, writing infrastructure documents or API references.

Having a rather small ecosystem, us technical writers in Korea rely much on web searches or team members for getting the latest news, tips, know-hows and strategies for technical writing. We struggle with such limited resources. Write the Docs Prague 2018 really hit the spot for me.

Write you a webpack for great good

Module bundlers have become quite popular in the world of JavaScript. Today, I’d like us to briefly see the concept of it, get into how it really works, and I’ll share the story of making a module bundler myself.

What is a module bundler?

Module systems structure a large-scale code base into units of modules. For long, there has been no module system for JavaScript, but ever since Node.js started to use a module system called CommonJS from 2009, modular programming became a common practice. Also, ES Module, a new module system, has been added to the JavaScript specification in the ECMAScript 2015. It’s hard to imagine coding JavaScript without modules nowadays.