LINE Messaging API SDK for Ruby
Introduction
The LINE Messaging API SDK for Ruby makes it easy to develop bots using LINE Messaging API, and you can create a sample bot within minutes.
Documentation
See the official API documentation for more information
- English: https://developers.line.biz/en/docs/messaging-api/overview/
- Japanese: https://developers.line.biz/ja/docs/messaging-api/overview/
Also, generated documentation by YARD is available.
Requirements
This library requires Ruby 3.1 or later.
Installation
Add this line to your application's Gemfile:
gem 'line-bot-api'
And then execute:
bundle
Or install it yourself as:
gem install line-bot-api
Synopsis
Usage:
# app.rb
require 'sinatra'
require 'line/bot'
def client
@client ||= Line::Bot::Client.new { |config|
config.channel_id = ENV["LINE_CHANNEL_ID"]
config.channel_secret = ENV["LINE_CHANNEL_SECRET"]
config.channel_token = ENV["LINE_CHANNEL_TOKEN"]
}
end
post '/callback' do
body = request.body.read
signature = request.env['HTTP_X_LINE_SIGNATURE']
unless client.validate_signature(body, signature)
error 400 do 'Bad Request' end
end
events = client.parse_events_from(body)
events.each do |event|
case event
when Line::Bot::Event::Message
case event.type
when Line::Bot::Event::MessageType::Text
message = {
type: 'text',
text: event.message['text']
}
client.reply_message(event['replyToken'], message)
when Line::Bot::Event::MessageType::Image, Line::Bot::Event::MessageType::Video
response = client.get_message_content(event.message['id'])
tf = Tempfile.open("content")
tf.write(response.body)
end
end
end
# Don't forget to return a successful response
"OK"
end
Help and media
FAQ: https://developers.line.biz/en/faq/
News: https://developers.line.biz/en/news/
Versioning
This project respects semantic versioning.
Contributing
Please check CONTRIBUTING before making a contribution.
License
Copyright (C) 2016 LINE Corp.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.