WebForm.gs

// MIT License

// Copyright (c) 2021 Rupak Chowdhury

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
        
		var sheetName = <SHEET_NAME>
		var scriptProp = PropertiesService.getScriptProperties()

		function intialSetup () {
		  var activeSpreadsheet = SpreadsheetApp.getActiveSpreadsheet()
		  scriptProp.setProperty('key', activeSpreadsheet.getId())
		}

		function doPost (e) {
		  var lock = LockService.getScriptLock()
		  lock.tryLock(10000)

		  try {
			var doc = SpreadsheetApp.openById(scriptProp.getProperty('key'))
			var sheet = doc.getSheetByName(sheetName)

			var headers = sheet.getRange(1, 1, 1, sheet.getLastColumn()).getValues()[0]
			var nextRow = sheet.getLastRow() + 1

			var newRow = headers.map(function(header) {
			  return header === 'Time' ? new Date().toString() : e.parameter[header]
              
			})

			sheet.getRange(nextRow, 1, 1, newRow.length).setValues([newRow])
			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()
		  }
		}