Ruby script to get twitter access token from consumer key.

twitter_access_token.rb

# ***************************************
# Oauth - Access Token, Secret 取得処理
# ***************************************
require 'oauth'

class TwitterAccessToken
  SITE_URL = "https://twitter.com"

  def get_token
    # Consumer 情報入力
    print 'Please input CONSUMER KEY   : '
    consumer_key    = gets.chomp
    print 'Please input CONSUMER SECRET: '
    consumer_secret = gets.chomp

    # Oauth オブジェクト生成
    oauth = OAuth::Consumer.new(
      consumer_key,
      consumer_secret,
      site: SITE_URL
    )

    # リクエストトークン取得
    request_token = oauth.get_request_token

    # PIN コード取得
    puts  "Please access this URL      : #{request_token.authorize_url}"
    print "Please enter the PIN code   : "
    pin_code = gets.to_i

    # アクセストークン取得
    access_token = request_token.get_access_token(
      oauth_verifier: pin_code
    )

    # アクセストークン表示
    puts "---"
    puts "ACCESS TOKEN                : #{access_token.token}"
    puts "ACCESS TOKEN SECRET         : #{access_token.secret}"
  rescue => e
    puts "[#{e.class}] #{e.message}"
    exit 1
  end
end

TwitterAccessToken.new.get_token