Generate JWT for LINE Channel access token v2.1

Reference:

Upload file and LINE Channel ID to generate short-lived JWT for access token

Field Value Description
Channel:
Expiry: minutes The expiry date of the JWT. Set this value in minutes. The max lifetime of a JWT Assertion is 30 minutes.
Token Expire: seconds Required when requesting a channel access token. This represents a valid expiration time for the channel access token in seconds. The max lifetime of a channel access token is 30 days.
File: Private key file which download from LINE developer console
or just paste json data here:
PrivKey JSON
JWT generated