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  • Outcomes of the LINE Security Bug Bounty Program
    Lee Myeongjae 2017.02.08

    He is a security engineer at LINE.

    About the LINE Security Bug Bounty Program

    Hello, my name is Lee Myoung Jae (MJ) and I'm in charge of security at LINE. In this post I'm going to talk about the LINE Security Bug Bounty Program and the results of the program in 2016. The LINE Security Bug Bounty Program is an ongoing program to make the LINE app more secure for our users by letting external engineers submit bug (vulnerability) reports which we would then immediately fix.

    We first conducted a trial run of the program called the LINE Bug Bounty Program from August 24 to September 23 in 2015. Based on our experience from that trial, we made various changes to create an improved bug bounty program for 2016. And on June 2, 2016, we launched the new and improved LINE Security Bug Bounty Program.

    For more information about the LINE Bug Bounty Program, see our previous blog posts: "Introducing the LINE Bug Bounty Program" and "Results From the LINE Bug Bounty"

    LINE Security Bug Bounty Program website: https://bugbounty.linecorp.com/

    BugBounty Security

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  • LINE Haskell Boot Camp
    Hyunje Jun 2017.01.25

    He is a front-end developer at LINE. He's interested in programming languages.

    Greetings! I'm Jun, a frontend engineer at LINE.

    We had a five-day event for internal engineers called the "LINE Haskell Boot Camp" starting on October 24th, 2016 at the LINE Shibuya office. I will share what the event was about, and what Haskell is in this post.

    What is Haskell?

    Haskell is a modern application programming language that helps you write high-performance software with a great deal of flexibility, composability, and safety. With recent successful cases of adopting Haskell by companies like Facebook or Standard Chartered, this innovative tool has been gaining attention as it has inspired many libraries and concepts in other languages.

    LINE is not an exception in this regard. With growing interest in Haskell, there is an increasing number of developers having study group meetings on Haskell or developing internal services written in Haskell. The LINE Haskell Boot Camp was a five-day gathering of engineers attempting to enter the world of safer and happier programming. Instead of diving into the depths of Haskell's theoretical background, we chose to have a hands-on experience to effectively spur further enthusiasm for Haskell. The event was organized by Han, a LINE Plus Corporation engineer who recently released an internal web service in Haskell.

    haskell

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  • Using LINE Notify to send stickers and upload images
    LINE 2016.11.30

    LINE Dev

    Hi, my name is Hasebe. I'm in charge of the development of LINE Notify.

    In a previous post, we introduced how you can use LINE Notify to send messages to LINE from the command-line. Today, I'm going to introduce two features newly implemented in the LINE Notify API. One is sending stickers and the other is uploading images.

    Sending stickers

    The use case demonstrated in the previous post was sending a build result from Jenkins to LINE by using LINE Notify. In that use case, an image of Moon laughing was used to show how it can notify us of a build failure. It was during that time that we came to wonder, "why not make LINE Notify send stickers as well as images?"

    We thought that sending stickers would make LINE Notify more "LINE-ish." That's why we decided to develop this feature.

    Sending stickers from the command-line

    Let's try sending a sticker by using the curl command.

    $ curl -X POST https://notify-api.line.me/api/notify -H 'Authorization: Bearer
    YOUR_PERSONAL_ACCESS_TOKEN' -F 'message=test' -F 'stickerPackageId=1' -F 'stickerId=113'
    

    LINE Notify

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  • Automated Testing Using the LINE Ad SDK
    LINE 2016.11.24

    LINE Engineering

    This post introduces how to run tests with the ad client module provided for the LINE Platform. The LINE ad client module runs on both mobile and the web. This post will focus on testing with a mobile client.

    LINE Ads Platform overview

    The structure of the LINE Platform is quite simple as shown below. Various types of protocols can be used for server-client communications. This post will focus on testing with the HTTP protocol.

    Ad SDK

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  • LINE TODAY Service - True Agile development
    Marco Chen & Rita Yang 2016.11.14

    Marco Chen: He is a director of the LINE Taiwan engineering office. He is interested in the softeware development process and system architecture in which he has 18 years of experience. Rita Yang: She is a backend engineer working at LINE to design and implement backend systems for LINE services.

    Introduction

    In this blog post, I'd like to explain how the LINE TODAY service was developed using the Agile development method. LINE TODAY is a mobile news service that was released in Taiwan, Thailand, Indonesia, Myanmar, and the United States in early 2016. As of July 30, 2016, the service recorded nearly 30M daily PV (page views). In Japan, a service similar to LINE TODAY is available under the name of LINE NEWS.

    LINE TODAY Agile

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