Line::Bot::API

Line::Bot::API - SDK of the LINE Messaging API for Ruby.

About the LINE Messaging API

See the official API reference documentation for more information.

https://devdocs.line.me/

Synopsis

Usage:

# app.rb
require 'sinatra'
require 'line/bot'

def client
  @client ||= Line::Bot::Client.new { |config|
    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 { |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
  }

  "OK"
end

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

License

Copyright (C) 2016 LINE Corporation.

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.