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require 'sinatra' # gem 'sinatra'
require 'line/bot' # gem 'line-bot-api'
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)
end
end
}
"OK"
end