Sheetsu APIでの複数行(rows)POSTの実装 ref: http://qiita.com/sakadon/items/cfda5c80bcf170bda867

file0.txt

curl -X POST -H "Content-Type: application/json" https://sheetsu.com/apis/v1.0/ENDPOINT -d '{ "rows": [{"TimeStamp":"2016/9/27 1:23","undefined":"fuga"}, {"TimeStamp":"2016/9/28 2:34","undefined":"moga"}] }'

file1.js

var request = {
  rows: [
    {}, {}, {}, ...
  ]
};

file2.js

$.ajax({
  type : 'POST',
  url : '//sheetsu.com/apis/v1.0/ENDPOINT',
  dataType: 'json',
  contentType: 'application/json',
  data : JSON.stringify(request)
})