Release notes

Table of contents

You can log in with a QR Code

February 5, 2019

Web apps that use LINE Login 2.1 now allow users to log in by scanning a QR code on the login screen. They can scan the QR code with LINE on their smartphones. As before, they can also log in with their email address and password.

We have applied this new feature to all channels with LINE Login 2.1 enabled. You don't need any further development.

November 22, 2018

The behavior of a consent screen displayed to users at login has been changed when you use LINE Login to request your users to grant your app permission to get their email address.

Previously, when a user attempted to log in, a consent screen was displayed at each login with or without the prompt parameter.

Currently, a consent screen is not displayed for a certain period unless the user's email address changes.

For more information, see Authentication and authorization process.

New permission to get users' email address released

February 28, 2018

Now you can request users who log in using LINE Login to grant your app the permission to get their email address. To do so, you first need to apply for the permission in the console.

For more information, see the sections below in Integrating LINE Login with your web app.

November 21, 2017

We've added an option to display a prompt to let you display an option for users to add your bot as a friend when logging in to your app with LINE Login. To do this, first, link a bot to your LINE Login account from the new "Bot linked to this channel" item in the LINE Developers console, then include the bot_prompt query parameter in the authorization URL for LINE Login.

For more information on this feature, see Linking a bot with your LINE Login channel.

In addition, we've released a new resource for the Social API which lets you get the friendship status between your bot and a user. Send a GET request to https://api.line.me/friendship/v1/status to see if the user has added your bot as a friend or not.

To see the API reference for this resource, go to Get friendship status.

LINE Login v2.1 released

Septemper 28, 2017

We have released LINE Login v2.1 which provides new features to make it easier for you to implement a login feature to your application. The new version adds support for the OpenID Connect 1.0 specification which is an identity layer on top of OAuth 2.0.

Here are some of the key changes.

ID tokens

With LINE Login 2.1, you'll be able to get ID tokens which contain user profile information when you retrieve the access token. This means that you no longer need to send a separate request to retrieve a user's profile information.

For more information, see ID tokens.

Login sessions

In version 2.1, when users are redirected to the authorization endpoint, we'll be able to check the login session to determine if the user is logged in to LINE or not. If users are logged in to LINE and their browsing session is valid, they will not be required to enter their email and passwords to log in.

For more information, see Authentication and authorization process.

Updated endpoints

We have updated our authorization endpoints where you can use the new version 2.1 features. You can find more detailed information on the following pages.

Note: You'll still be able to use our LINE Login v2 endpoints.

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