Google Apps Script code to accept feedback from Xamarin iOS & Android apps

XamarinToGoogleSheet.gs

function doPost(request){
  // Open Google Sheet using ID
  var sheet = SpreadsheetApp.openById("{SheetID}");
  var result = {"Status": "SUCCESS", "Message": "Thank you for your feedback"};
  try{
    // Convert post data content to a JS object
    var resultObject = JSON.parse(request.postData.contents)
    // Append data on Google Sheet
    var rowData = sheet.appendRow([resultObject.Name, resultObject.Email, resultObject.Phone, resultObject.Feedback]);
  }catch(exc){
    // If error occurs, throw exception
    result = {"Status": "FAILED", "Message": exc};
  }

  // Return result
  return ContentService
  .createTextOutput(JSON.stringify(result))
  .setMimeType(ContentService.MimeType.JSON);
}