Blog - LINE ENGINEERING

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Using Headless Chrome with chatbots
Kazuki Nakajima2018-08-06
LINE Engineer
Hi again, this is Nakajima, LINE's Developer Advocate.Be smart in using web with chatbots I am sure you've had at least one or more encounters with the following and ended up with frustration:Entering something in on mobile-unfriendly websitesHaving to sign in every time you access a webpageEntering something in on smartphones itself LINE the app is mostly used on smartphone, and this is why we value and put much effort into UX. Having been frustrated myself, I wondered how LINE could ease u
How Promgen routes notifications
Paul Traylor2018-08-06
Currently working on making server monitoring and alerting easier for developers to use.
I'm Paul Traylor in LINE Fukuoka's Development Department where I focus on tooling to monitor many servers used to support LINE family apps. One of my main tasks is to maintain Promgen which is a tool for managing Prometheus targets and routing alerts to the correct team.How Prometheus and AlertManager process alerts Prometheus uses labels for many things, from writing PromQL to routing alerts, so understanding how labels are used is important to understanding how alerts are routed. Let's begi
- Open Source
- Prometheus
Agile Testing Days 2017
Marc Lihan and Kent Han2018-07-20
Marc and Kent are SQA engineers in LINE Taiwan. They are in charge of quality assurance and delivery management.
Introduction to Agile Testing Days Last winter in 2017, we—Marc and Kent, QA engineers from LINE Taiwan office—had an opportunity to attend one of the most well known software testing conferences in Europe called Agile Testing Days 2017 in Potsdam, Germany. Agile Testing Days or ATD has been hosting this conference every year for almost a decade and the community grows each year. It was a four full day conference with over 600 attendees, 160 sessions and 130 speakers. The conference
- Agile
- QA
- Appium
- Testing
- CI/CD
- DevOps
Announcing the LINE API Experts for 2018 Q2
Shinichiro Isago2018-07-08
LINE Engineer
LINE API Expert is a program that recognizes skilled engineers who have a deep understanding of the APIs provided by LINE and are influential in the community by giving them the title of "LINE API Expert". In addition to providing an array of benefits, LINE will also support the various activities of these LINE API experts through this program. We consider many factors in our screening process; influential power in developer communities, communication skills including writing and presentation,
- LINE Events
OpenStack Summit Vancouver 2018 Recap (1/2)
Yuki Nishiwaki2018-07-03
LINE株式会社にてOpenStackを含むPrivate Cloudの運用開発を担当しています.
A conference was held in Vancouver from May 21st to 24th this year, OpenStack Summit Vancouver, and I'd like to share my time there as an attendee as well as a speaker, over two postings. On this post I'll briefly introduce OpenStack and share some sessions with you. In the following post, I'll share the content of our presentation. What is OpenStack? First, let's quickly go through the basic concept of OpenStack. OpenStack is software, provided as an open source project, for building cloud-bas
- Event Report
V8 Hidden class
Masami Yonehara2018-06-26
I am a frontend engineer at LINE. I've moved from Fukuoka to Tokyo in 2016.
As a frontend engineer, I feel I still need to know more about the structure of JavaScript and web browsers, in order to provide quality UX to our users. Thankfully, we are given an access to peak through JavaScript's thoughts, thanks to Google and Mozilla for making their engine code available to public, along with nicely prepared documentation. The availability of various means for tracing and profiling code surely helps too. I'd like to take this opportunity to take you through hidden class,
- JavaScript
- Web Development
Presenting on RedisConf18
Jongyeol Choi2018-06-17
As a member of the Storage team for LINE Messenger Server, I develop modules related to Redis.
Hello, I am Jongyeol Choi, a member of the Redis team at LINE. LINE's services use various storage systems based on their needs. Our messaging service uses various open source storage systems such as Redis, HBase, and Kafka. As a member of the Redis team, I participated the RedisConf18 conference in San Francisco in U.S.A, on April 26th, as a speaker. The topic of my session was, "Redis at LINE, 25 billion messages per day". I'd like to take this opportunity to share the presentation preparation
LIFF, our latest product for third party developers
Sho Tachibana2018-06-14
I am a technical evangelist for the LINE platform, including LINE Messaging API and LINE Login.
日本語版はこちら What is LIFF? LIFF is one of our latest products out for LINE Messaging API users. So, what is LIFF? LIFF stands for the LINE Front-end Framework, a web app platform that runs inside the LINE app. LIFF apps running on the LINE app can obtain LINE user ID or tokens needed to use the LIFF API. With the information obtained, LIFF apps can provide features using user information, such as sending messages on behalf of the user. LIFF apps can be displayed in one of the following three sizes,
- LINE Messaging API
LINE Animation Sticker Checker on Web browser
ha1f2018-06-04
I develop iOS apps at LINE Fukuoka.
Great to meet you all. This is ha1f from LINE Fukuoka, I develop iOS apps at LINE. Back when I was as a part timer at LINE, I was involved in making in-house tools for LINE. To share a little bit of my background, I was hired as a part timer with a confirmed offer to a full time position. Anyway, today, I'd like to show you a tool I developed during my time as a part timer, the Animation Sticker Checker. What is APNG? Before we get into the details of the tool, let's discover what APNG is. APNG
- Web Development
'Let’s Contribute OSS!' for LINE's frontend engineers
kawasako2018-05-30
I am in charge of Web analytics.
Hi there you all, this is Kawasako from Frontend Standardization team in LINE. Our team is in charge of developing tools that are commonly required by the frontend development team, for developing products. Also we seek ways to boost information sharing and communication between developers. I'd like to take this opportunity to introduce our work and our recent workshop. LINE's developers, regardless of their office location, can make use of various packages registered, with Private npm (N