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# Messaging API

# API reference

Messaging API

# Development guidelines

Development guidelines

# Quickstart

Messaging API overview

Messages types

Getting started with the Messaging API

Channel access tokens

Issuing a channel access token v2.1

Building a bot

# Guides

Receiving messages (webhook)

Sending messages

Counting characters in a text

Getting user IDs

List of available stickers

List of available LINE emojis

Using audiences

Using quick replies

Using rich menus

Get statistics per aggregation unit

Try out rich menus on Rich Menu Playground

Using LINE features with the LINE URL scheme

Using beacons

Sharing your LINE Official Account with users

Linking user accounts

Change icon and display name

Retrying a failed API request

(Tutorial) Make a sample reply bot using Node.js

# LINE Bot Designer

Using LINE Bot Designer

Download LINE Bot Designer

# Flex Message

Sending Flex Messages

Flex Message elements

Flex Message layout

Creating a Flex Message including a video

(Tutorial) Using Flex Message Simulator

Flex Message Simulator

# Concepts

Actions

Group chats and multi-person chats

Consent on getting user profile information

# Reference

LINE Beacon device specification

# Resources

Messaging API SDKs

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