Sending messages
The Channels API supports many of the features of Line; however, due to the omni-channel nature of the API, there may be some differences between the Channels API message and the native Line API.To send a Line message, you must have an active Line channel and perform an HTTP request to the following endpoint with a valid access key
When sending outbound messages as well as setting the receiver information you must set message body field in all cases
Body
You can send messages to users who have added your LINE Official Account as a friend or in group chats and multi-person chats that your LINE Official Account has joined. Additionally, you can send messages to users who have sent a message to your LINE Official Account within the past seven days.
The Channels API supports many of the features of Line; however, due to the omni-channel nature of the API, there may be some differences between the Channels API message and the native Line API. Here is an overview of the Line message types and Channels API message types:
Outbound messages
Text
Text message
Text message with emoji
To include an emoji in a text message, specify the product ID and emoji ID within the text message object. Set the index
, productId
, and emojiId
properties, as shown in the example below. These properties can be found in text.metadata.line.emoji.items
. Refer to the official documentation for detailed LINE emoji definitions.
Text message with reply buttons
Text message with postback actions
Text message with reply and postback actions
Text message with location request
Image
Single image message
Single image message with text
Multiple image message
Single image message with postback actions
Single image message with label and reply actions
Single image message with label, postback and reply actions
Multiple images message with labels and postback actions
Multiple images message with reply actions
Multiple images message with labels, postback and reply actions
File
Single file message
Multiple files message
Location
Carousel
Single card with title, description and actions
Single card with image, title, description and actions
Multiple cards with title, description and actions
Multiple cards with image title, description and actions
List
List message without sections
ReplyTo
You can send any outbound message as a reply to a previous message by setting the replyTo object as shown below. The replyTo.id should be set to the id of a received message and the replyTo.type should be set to "message".
ReplyTo with a text message
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