gistfile1.rb

def resolve_postcode_position(code)
      cache_key = "postcode:geo:#{code.gsub(' ','')}"

      coords = Rails.cache.fetch(cache_key) do 
        postcode_uri = URI.encode "https://maps.googleapis.com/maps/api/geocode/json?address=#{code},UK&sensor=false&key=#{CONFIG[:google][:api_key]}"
        response = HTTParty.get(postcode_uri)
        begin
          response['results'].first['geometry']['location']
        rescue
          false
        end
      end
      # clear cache if unable to find
      Rails.cache.delete(cache_key) unless coords
      coords
    end