LINE Messaging API Reference

Overview

This skill provides a structured reference for integrating and interacting with the LINE Messaging API. It covers common specifications, webhook handling, signature verification, message formats, and rich menu management.

When to Use

• Implementing webhook endpoints to receive messages and event objects from the LINE Platform.
• Verifying the webhook request signatures (x-line-signature) for security.
• Sending reply, push, multicast, or broadcast messages.
• Fetching user profile information or downloading user-sent media content (images, videos, audio, files).
• Creating and managing rich menus (uploading images, linking/unlinking rich menus to users).

Core Pattern

Always perform signature validation on incoming webhooks before processing events, and immediately return a 200 OK response to the LINE Platform.