Web Token › Can use any JWT library or write your own code from scratch to Generate a JWT from your Assertion Signing Key. Channel Access Token v2.1 Supports HTTP/2 › The handshake overhead is reduced and the connection efficiency is improved. Developer Center and Document › Faster and more developer friendly › Detailed Flex Message tutorial added
› Flex Message Simulator has also been updated Limitation Extended › Limitation of messages such as length of Text message, size of media are now extended Narrow cast message › Can create audience group and send message via API › Includes users who clicked link in past messages, opened message and tagged in LINE Official Account Manager › Created audience group can be used in LINE Official Account Manager and LINE Ad Manager
event webhook Retry Key › Can safely retry a request without duplicate API requests being processed Video Play Complete Event › Can receive webhook that indicates user plays whole video sent via API Webhook Setting API › Can get/set information regard to Webhook setting with API
webhook notification source will be discontinued at the end of January 2021 › Please see below and confirm communication from the new environment during the transition period. https://developers.line.biz/en/news/2020/10/06/update-webhook-client-and-root-certificate/
and use LIFF App with external Browser › Set OGP information are now can be seen in preview of talk window Customizable OGP Added share button on header › LIFF users can share link of LIFF App Can include pass and query parameter › Can include pass and query parameter in LIFF URL
Service B UI Communication Payment MINI App API UI Auth • Promotion opportunities • APIs Provide App Better service experience • Use • Payment Developer User