try-to-get-hatebu-count.rb

#!/usr/bin/env ruby

require 'net/http'
require 'xmlrpc/client'

# http://d.hatena.ne.jp/snaka72/20110702/1309595184
# slobby patch for Hatena bookmark API
module Net
  module HTTPHeader
    alias :old_hash :[]
    def [](key)
      key == 'Content-Type' ?  'text/xml' : old_hash(key)
    end
  end
end

target_uri = 'http://masutaka.net/chalow/'
counter_api = XMLRPC::Client.new('b.hatena.ne.jp', '/xmlrpc')
current = counter_api.call('bookmark.getTotalCount', target_uri)
p current
# Occur!!
# /Users/masutaka/.rbenv/versions/2.0.0-p353/lib/ruby/2.0.0/xmlrpc/client.rb:506:in `do_rpc': Wrong size. Was 136, should be 116 (RuntimeError)
#         from /Users/masutaka/.rbenv/versions/2.0.0-p353/lib/ruby/2.0.0/xmlrpc/client.rb:281:in `call2'
#         from /Users/masutaka/.rbenv/versions/2.0.0-p353/lib/ruby/2.0.0/xmlrpc/client.rb:262:in `call'
#         from /Users/masutaka/test/ruby/test.rb:19:in `<main>'

See also http://masutaka.net/chalow/2014-02-04-1.html