Line Message API : Push Message & Reply

Workflow Description This workflow demonstrates how to use the LINE Messaging API to handle two scenarios: Replying to a user's message using a reply token. Sending a push message to a specific LINE user using their user ID.

Key Features Webhook Integration: Receives and processes incoming messages from LINE using a webhook. Conditional Logic: Checks if the received event type is a message and handles it accordingly. Reply Message: Automatically responds to the user's message using the LINE reply token. Push Message: Sends a test message to a specific LINE user using their unique user ID.

Pre-Configuration To simplify the setup process, create a Header Auth credential in n8n: Name**: Authorization Value**: Bearer {line token}
This will authenticate all API requests to the LINE Messaging API. Node Configurations

1.1. Webhook from LINE Message Purpose**: Captures incoming events from the LINE Messaging API. Configuration**: HTTP Method: POST Path: {n8n-webhook-page}

1.2. If Condition Purpose**: Checks if the received event type is message. Configuration**: Condition: {{ $json.body.events[0].type }} equals "message"

1.3. Line: Reply with Token Purpose**: Replies to the user's message using the LINE reply token. Configuration**: Method: POST URL: https://api.line.me/v2/bot/message/reply JSON Body: { "replyToken": "{{ $('Webhook from Line Message').item.json.body.events[0].replyToken }}", "messages": [ { "type": "text", "text": "收到您的訊息 : {{ $('Webhook from Line Message').item.json.body.events[0].message.text }}" } ] } 2.1. Manual Trigger: Test Workflow Purpose**: Triggers the workflow for testing the push message functionality. Configuration**: No additional setup required.

2.2. Edit Fields Purpose**: Prepares the unique LINE user ID for the push message. Configuration**: Field: line_uid: Uxxxxxxxxxxxx

2.3. Line: Push Message Purpose**: Sends a test message to a specific LINE user. Configuration**: Method: POST URL: https://api.line.me/v2/bot/message/push JSON Body: { "to": "{{ $json.line_uid }}", "messages": [ { "type": "text", "text": "推播測試" } ] } 工作流程描述 此工作流程展示如何使用 LINE Messaging API 處理兩種情境: 使用 reply token 回應使用者的訊息。 使用使用者的 user ID 發送 推播訊息。

主要功能 Webhook 整合:透過 Webhook 接收並處理來自 LINE 的訊息。 條件邏輯:檢查接收到的事件類型是否為訊息並進行處理。 回應訊息:使用 LINE 的 reply token 自動回覆使用者的訊息。 推播訊息:使用 LINE User ID 向指定用戶發送測試訊息。

預先設定 為簡化設定流程,請在 n8n 中建立 Header Auth 憑證: 名稱**:Authorization 值**:Bearer {line token}
此設定將用於認證所有 LINE Messaging API 的請求。 節點設定

1.1. Webhook from LINE Message 用途**:接收來自 LINE Messaging API 的事件。 設定**: HTTP 方法:POST 路徑:{n8n-webhook-page}

1.2. If 條件判斷 用途**:檢查接收到的事件類型是否為 message。 設定**: 條件: {{ $json.body.events[0].type }} 等於 "message"

1.3. Line: Reply with Token 用途**:使用 LINE reply token 回應使用者訊息。 設定**: 方法:POST URL:https://api.line.me/v2/bot/message/reply JSON 主體: { "replyToken": "{{ $('Webhook from Line Message').item.json.body.events[0].replyToken }}", "messages": [ { "type": "text", "text": "收到您的訊息 : {{ $('Webhook from Line Message').item.json.body.events[0].message.text }}" } ] } 2.1. 手動觸發:測試工作流程 用途**:測試推播訊息功能。 設定**:無需額外設定。

2.2. Edit Fields 用途**:準備推播訊息所需的 LINE 使用者 ID。 設定**: 欄位: line_uid:Uxxxxxxxxxxxx

2.3. Line: 推播訊息 用途**:向特定 LINE 使用者發送測試訊息。 設定**: 方法:POST URL:https://api.line.me/v2/bot/message/push JSON 主體: { "to": "{{ $json.line_uid }}", "messages": [ { "type": "text", "text": "推播測試" } ] }

完成示意圖 (Storyboard Example):

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Author:darrell_tw(View Original →)
Created:8/14/2025
Updated:8/25/2025

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