# Line Bot Plugin Integration Guide Author: @kevintsai1202 (https://github.com/kevintsai1202/difyplugin.git) Version: 0.0.5 Type: extension ## What's Changed # 0.0.5 1. Fix/New Feature: When group_id (LINE group chat), room_id (chat room) exist, Session uses group_id or room_id to save conversation_id. The effect is that group chats on Dify will maintain the same conversation. thanks to [@ryantsai](https://github.com/ryantsai] 2. New Feature: When the message contains markdown, send to LINE as FlexMessage. Can be adjusted in Plugin parameters, default is off. thanks to [@ryantsai](https://github.com/ryantsai] 3. New Feature: Image upload uses Dify API URL parameterization, supports community edition scenarios. thanks to [@ryantsai](https://github.com/ryantsai] # 0.0.4 1. Add the /clearconversationhistory command, thanks to [@ryantsai](https://github.com/ryantsai] When a user enters it on LINE, it will clear the session storage, and the next message sent to Dify will start a brand-new, clean session. 2. Image message handling, thanks to [@ryantsai](https://github.com/ryantsai] Generate responses based on the uploaded images. 3. Message Handling Enhancement, thanks to [@ryantsai](https://github.com/ryantsai] Added support for Markdown image URLs. `[url](http://xxx.xxx)` 4. Handle image content in responses[@ryantsai](https://github.com/ryantsai] Ensure that generated images are properly displayed on LINE. 5. Identifier Retrieval Support, thanks to [@jimcchi](https://github.com/jimcchi] Capture user_id, room_id, and group_id from incoming messages. ## Plugin Overview The Line Bot plugin integrates the Dify chat workflow application with the Line Official Account Messaging API. It enables users to interact with AI through a Line Official Account. The plugin only processes message reception and responses; it does not store any user information. ## Setup Steps Follow these steps to install and configure the Line Bot plugin: 1. Create a Provider and Messaging API Channel Go to the [LINE Developers](https://developers.line.biz) website。

2. Copy the Channel Secret and Channel Access Token of the Messaging API - Navigate to the Basic settings page. - Copy the Channel Secret (if it hasn’t been generated yet, click "Issue" to create one).

- Navigate to the Messaging API page. - Enable Use Webhook. - Copy the Channel Access Token (if it hasn’t been generated yet, click "Issue" to create one).

3. Set Up the Dify Line Bot Endpoint - Set an Endpoint Name. - Paste the Channel Secret and Channel Access Token. - Obtain the API Key for the Dify workflow.(option) - Set the image variable, and ensure that the workflow also configures the same file variable. - Select a Chat Workflow.

4. Save and Copy the Line Bot Webhook URL

5. Set the Webhook URL and Verify - Return to the Messaging API page on the LINE Developers platform. - Paste the Webhook URL obtained in the previous step. - Verify the Line Bot.

6. Use Line to add the Line Official Account and start chatting with AI.

/clearconversationhistory

Describe the image

Generation image Sample ChatFlow on Dify using gpt-image-1 for generation(DSL file can be imported into Dify)

LinebotImageChatSample.zip FlexMessage