Tips for Developers

Hi, I'm Habara, an engineer working on the Messaging API. The Messaging API includes a message type called text message (v2), which makes it easy to embed mentions and LINE emojis. Unlike the original text message, you can specify where men...

Hello! I'm Zenigami, a technical writer. When using the Messaging API SDKs provided by LY Corporation, have you ever wondered, "How do I actually translate these specifications into real code?" One of the best ways to solve this problem is ...

Running a LINE Official Account means thinking about message delivery costs. Each pricing plan comes with a set number of free messages. You may wonder how one message is actually counted. This article gives a quick overview. One bubble doe...

Hello! I'm Furuki, a technical writer. The LIFF SDK used in LIFF apps and LINE MINI Apps continues to gain new methods. In this article, I'd like to introduce the liff.requestFriendship() method, added on March 24, 2026, as one of my favori...

Hi! I’m Okajima, a technical writer in charge of documentation for the LINE Developers site. Have you ever read the LINE Developers documentation and thought, "Wait, did something change"? You can actually check the change history of the LI...

Have you ever used a LINE MINI App, tapped the Open in LINE button, and found that LINE didn't launch? If you're a LINE MINI App developer, you may also have received questions such as, "I can't open the MINI App from Facebook." This kind o...

With Flex Messages, you can create flexible and advanced messages based on the CSS Flexible Box (CSS Flexbox) specification. Flex Messages let you send message designs that are difficult to express with traditional message types, without re...

Hello! I'm Zenigami, a technical writer. Are you using the Messaging API SDKs provided by LY Corporation? Previously, SDK updates corresponding to new Messaging API features were done manually. By switching to automatic generation using Ope...