LINE Assistant with Google Calendar and Gmail Integration
This workflow provides intelligent assistant features by integrating the LINE chat platform, Google Calendar, and Gmail. It supports users in querying and creating calendar events through natural language, as well as obtaining email summaries. Its highlights include seamless collaboration across multiple systems and intelligent semantic understanding, which can effectively enhance user productivity, facilitate schedule and email management, and alleviate the hassle of frequently switching between applications. It is suitable for both individual users and corporate assistants.

Workflow Name
LINE Assistant with Google Calendar and Gmail Integration
Key Features and Highlights
This workflow integrates the LINE messaging platform with Google Calendar and Gmail to deliver an intelligent assistant capable of understanding users’ natural language requests. It assists users in querying and creating calendar events while retrieving relevant email content. Highlights include seamless multi-system collaboration, intelligent semantic understanding and dialogue management powered by OpenAI and LangChain, as well as real-time error handling and context memory support.
Core Problems Addressed
It solves the pain point of users needing to quickly manage schedules and email information within LINE chats, eliminating the hassle of manually switching between multiple applications. Through intelligent Q&A and automated operations, it enhances work efficiency and facilitates convenient information access.
Use Cases
- Users querying or creating Google Calendar events directly via LINE chat
- Quickly obtaining email summaries within specified time ranges
- Enterprise or personal assistant scenarios for managing schedules and email reminders
- Supporting multi-turn conversations suitable for complex schedule planning and information tracking
Main Workflow Steps
- Receive User Message: Listen for user text messages via LINE Webhook.
- Message Type Determination: Identify if the message is text; non-text messages trigger error response flow.
- Context Memory Management: Maintain a conversation memory window based on user ID to support multi-turn dialogues.
- AI Semantic Understanding: Use LangChain AI Agent to invoke OpenAI GPT model for parsing user requests.
- Information Retrieval Calls:
- Access Google Calendar to read or create events
- Query Gmail to retrieve emails within specified time frames
- Utilize Wikipedia tool to assist with knowledge queries
- Text Cleaning and Formatting: Clean and format AI-generated replies to ensure clarity and readability.
- Respond to User: Send the processed response back to the user via LINE Messaging API, handling normal and error replies separately.
Involved Systems and Services
- LINE Messaging API: User interaction entry point and response channel
- Google Calendar API: Read/write operations for calendar events
- Gmail API: Query and retrieve email content
- OpenAI GPT-4o-mini Model: Natural language understanding and generation
- LangChain Framework: Supports AI Agent, memory management, and tool integration
- Wikipedia Tool: Assists in providing knowledge query responses
Target Users and Value Proposition
- Individual users who need to manage schedules and emails via instant messaging tools
- Internal corporate assistants or customer service teams aiming to improve automation and response efficiency
- Developers and product managers looking to build cross-platform intelligent assistants
- Users who value natural language interaction and seek to enhance office automation through AI
This workflow centers on intelligent conversation, combining multiple services to create a feature-rich and responsive LINE smart assistant, greatly facilitating efficient schedule and email management within the chat environment.