LINE Message API Reply Message Node

NODE-RED node for reply message to LINE Messaging API channel.

Usage

1. Create LINE Messaging API Channel in LINE Developer console. Use this official document Getting started with the Messaging API to create your own LINE Messaging API.

2. Obtain a Channel Access Token and Channel Secret from your created LINE Messaging API Channel (Actually, LINE Message API Reply Message Node use only Channel Access Token, but LINE Messaging API Configuration Node requires both Channel Access Token and Channel Secret for configuration).

3. Add Messaging API Channel to LINE application.

4. Add LINE Message API Reply Message Node in Node-RED workspace. Normally, LINE Message API Reply Message Node use with LINE Webhook Node for automatic reply when Webhook tricked. Morever, LINE Message API Reply Message Node uses replyToken for reply message. So, using LINE Message API Reply Message Node with LINE Webhook Node are easier than use single LINE Message API Reply Message Node.

5. Configure LINE Messaging API Channel Access Token and Channel Secret in Reply Message Node. See using LINE Messaging API Configuration Node

6. Setup Node values

• Use/Don't Use Reply Token from wired node. If use reply Token from wired node, it does not use Reply Token from Node Input.
  You can find replyToken for reply message by go to How to find User Id, Group Id or replyToken for testing Messaging API at solution NO 2.
  Remark : The replyToken come with the request will only valid for about 30 seconds. See reference

• Use/Don't use Message data from wired node. If use message data from wired node, it does not use message type and message content from Node Input.
• Message Type, Normal Text (string) or Custom Message Format (JSON)
• Message, message for reply.
• Disabled Push Notification, the user does/doesn't receive push notification when the message is sent.

7. Run workflow

8. Check result.

API Input

When setup node values to 'Use Reply Token from wired node', it uses msg object instead node input.

Property	Mandatory	Type	Description
replyToken	No (Yes, if select 'Use Reply Token from wired node')	string	Specified Reply Token value for reply message to.

When setup node values to 'Use message data from wired node', it uses msg object instead node input.

Property	Mandatory	Type	Description
messageType	No (Yes, if select 'Use Message data from wired node')	int	0 : for normal text message for reply message. 1 : for custom message format for reply message.
payload	No (Yes, if select 'Use Message data from wired node')	string or JSON	string : for normal text message JSON : for custom message format Payload reply message is validated at runtime.

API Output

Result from reply message by using msg object.

Property	Type	Description
status	number	Result status code
payload	string	Result status message

• Output success case

status = 0 payload = Reply message success: {"x-line-request-id":"xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx"}

Remark : {"x-line-request-id":"xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx"} is result from LINE Messaging API response.

• Output Fail case

status = <Error Number> payload = <Error message>

Examples

After install package, see usage examples at Node-RED Import menu at node-red-contrib-node-line-api, then line-reply-message-examples. There are using 'function' node for managing events message from LINE Webhook Node too.

More details

• See more details at LINE Messaging API (Send reply message) Document.
• See more details about Custom message format at LINE Message Types.
• See more details at List of available LINE emojis.
• Node has paste function data from clipboard, so allow paste permmision in browser to able to work paste function.