def get_json(path)
      @request_uri = "#{@base_uri}#{path}" 
      req  = get_request(path)
      @res = http_connection.start {|http| http.request(req) }
      handle_error(@res, @request_uri)
      JSON.parse(@res.body)
    end
def get_json(path)
      @request_uri = "#{@base_uri}#{path}" 
      req  = get_request(path)
      @res = http_connection.start {|http| http.request(req) }
      handle_error(@res, @request_uri)
      JSON.parse(@res.body)
    end
GET the JSON API
 @param [String] path
 @return [Hash] response body