code sheet driver

function doGet(e){
   return handleResponse(e);
}
var SHEET_NAME = "Sheet1";
var SCRIPT_PROP = PropertiesService.getScriptProperties(); // new property service
function handleResponse(e) {
  var lock = LockService.getPublicLock();
  lock.waitLock(1000);
  try {
      var doc = SpreadsheetApp.openById(SCRIPT_PROP.getProperty("key"));
      var sheet = doc.getSheetByName(SHEET_NAME);
      var headRow = e.parameter.header_row || 1;
      var headers = sheet.getRange(1, 1, 1, sheet.getLastColumn()).getValues()[0];
      var nextRow = sheet.getLastRow()+1;
      var row = []; 
      for (i in headers){
          if (headers[i] == "Timestamp"){
             row.push(new Date());
          } else {
             row.push(e.parameter[headers[i]]);
          }
      }
      sheet.getRange(nextRow, 1, 1, row.length).setValues([row]);
      return ContentService.createTextOutput(JSON.stringify({"result":"success", "row": nextRow})).setMimeType(ContentService.MimeType.JSON);
  } catch(e){
     return ContentService.createTextOutput(JSON.stringify({"result":"error", "error": e})).setMimeType(ContentService.MimeType.JSON);
 } finally {
     lock.releaseLock();
 }
}

function setup() {
   var doc = SpreadsheetApp.getActiveSpreadsheet();
   SCRIPT_PROP.setProperty("key", doc.getId());
}