ふりがなGAS

Code.gs

var nsDefault = XmlService.getNamespace("urn:yahoo:jp:jlp:FuriganaService");

function parseXml() {
  var url = 'http://jlp.yahooapis.jp/FuriganaService/V1/furigana';
  var params = [
    'appid=XXXXXXXXXXXXXXXXXXXX',
    'sentence=' + encodeURIComponent('初音ミクさんを忘れないでください'),
    'grade=1'
  ]
  var xml = UrlFetchApp.fetch(url + '?' + params.join('&') ).getContentText();
  var document = XmlService.parse(xml);
  var root = document.getRootElement();
  var words = root
      .getChild('Result', nsDefault)
      .getChild('WordList', nsDefault)
      .getChildren('Word', nsDefault);
  for (var i = 0; i < words.length; i++) {
    
    var subWordList = words[i].getChild('SubWordList', nsDefault);
    var furigana = words[i].getChild('Furigana', nsDefault);
     
    if(subWordList){ // 入れ子の単語
      var subwords = subWordList.getChildren('SubWord', nsDefault);
      for(var j = 0; j < subwords.length; j++){
        printWord(subwords[j])
      } 
    }else if(furigana){ //入れ子じゃない単語(ふりがなつき)
      printWord(words[i])
      
    }else{ //入れ子じゃない単語(ふりがななし)
      var surfaceValue = words[i].getChild('Surface', nsDefault).getValue()
      Logger.log(surfaceValue);
    }
    
  }
}
    
function printWord(words){
  var surface = words.getChild('Surface', nsDefault);
  var furigana = words.getChild('Furigana', nsDefault);
  var surfaceValue = surface.getValue() || '[empty]';
  var furiganaValue = furigana.getValue() || '[empty]';
  Logger.log(surfaceValue + ' : ' + furiganaValue);
}