make-the-most-of-your-tweet

gist-1.html

<a href="https://twitter.com/share" class="twitter-share-button"
                                    data-count="vertical"
                                    data-via="rondale_sc">Tweet</a>

<script type="text/javascript" src="//platform.twitter.com/widgets.js"></script>

gist-2.rb

class Article < ActiveRecord::Base
  before_save :populate_short_url

  def populate_short_url
    self.short_url = get_shortened_url
  end

  def get_shortened_url
    http = Net::HTTP.new("www.googleapis.com", 443)
    http.use_ssl = true
    http.verify_mode = OpenSSL::SSL::VERIFY_PEER
    http.ca_file = File.join(Rails.root, "lib", "cacert.pem")
    key = File.read(File.join(Rails.root, "lib", "google_api.txt")).strip
    params = {'longUrl' => get_article_url }.to_json # self.url is your article slug
    resp = http.post("/urlshortener/v1/url?key=#{key}", params, {'Content-Type' => 'application/json'})
    body = JSON.parse(resp.body)

    if resp.code.to_i == 200
      @short_url = body["id"]
    else
      error = body["error"]
      raise "Error: #{error["code"]} : #{error["message"]}"
    end
  end

  def get_article_url
    "YOUR_ROOT_URL" + self.url
  end
end

gist-3.erb

# app/views/_tweet_button.html.erb

<a href="https://twitter.com/share" class="twitter-share-button"
                                    data-url="<%= @article.short_url %>"
                                    data-counturl="<%= request.url %>"
                                    data-count="vertical"
                                    data-via="rondale_sc">Tweet</a>

gist-4.erb

# in app/view/articles/show
<% content_for :head do %>
  <%= content_tag("title", @article.title) %>
<% end %>