Try this:
Google Web App Script (bound to spreadsheet):
function doPost(e) {
var data = eval(e.postData.contents) ;
var ss = SpreadsheetApp.getActive();
var sh = ss.getSheetByName('Sheet1');
for (var i=0;i<data.length;i++) {
sh.appendRow(data[i]);
}
return ContentService.createTextOutput("Success") ;
}
Blocks
