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- Getting started with LIFF
Getting started with LIFF
To start using LIFF, you must first create a channel on the LINE Developers console.
What's a channel?
A channel is a communication path for using the functions provided by the LINE Platform in the services developed by the provider. To use the LINE Platform, create a channel and associate your service with the channel. Channels must have a name, description, and icon image. When a channel is created, a unique channel ID is issued to identify the channel.
You can use a LIFF app with both LINE Login channels and Messaging API channels.
When using the LIFF server API on a LINE Login channel, you need to issue a channel access token as described in 6. Prepare a channel access token.
Note: Use of LIFF is not supported on channels associated with services other than the LINE Login and Messaging API.
Creating a channel
1． Log in to the console
Log in to the LINE Developers console with the email address and password of your LINE account or a QR Code displayed on the login screen.
Note: If you do not have a LINE account, download LINE and create your LINE account.
2． Register as a developer (only on first login)
Enter your name and email address to create a developer account on the LINE Developers console.
3． Create a new provider
Enter a name for the provider. The provider is the entity that offers your app. For example, you can use your own name or the name of your company.
4． Create a channel
Enter the required information for your channel.
- "LINE" or a similar string cannot be included in the channel name.
5． Confirm
Confirm that your channel was created.
6． Prepare a channel access token
On a Messaging API channel
A channel access token is also issued when a channel is created. Check the value in the "Channel access token (long-lived)" field in the "Messaging settings" section in the "Channel settings" page. The validity period of this token is so long that you do not need to consider expiration.
On a LINE Login channel
Issue a channel access token by calling the API. To do so, send an HTTP POST request to the /v2/oauth/accessToken endpoint. The validity period of a channel access token issued by the API is 30 days.
Example request
curl -v -X POST https://api.line.me/v2/oauth/accessToken \
-H "Content-Type:application/x-www-form-urlencoded" \
--data-urlencode 'grant_type=client_credentials' \
--data-urlencode 'client_id={channel ID}' \
--data-urlencode 'client_secret={channel secret}'
A channel access token is returned on success.
Example response
{
"access_token":"{channel access token}",
"expires_in":2592000,
"token_type":"Bearer"
}
For more information, see Issue channel access token in the Messaging API reference documentation.
Next steps
You have now created a channel for your LIFF app. Next, deploy the sample LIFF app or develop your LIFF app.