How can I read the contents of a form within a DoGet() function?-CodePudding

I am making a

Script:

function doGet(e) {
  return HtmlService.createHtmlOutputFromFile('Index');
}

function processData(data) {
  const lock = LockService.getScriptLock();
  lock.tryLock(10000);
  try {
    const doc = SpreadsheetApp.openById(ScriptProperties.getProperty('key'));
    const sheet = doc.getSheetByName(data['sheet']);

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

    const newRow = headers.map(function(header) {
      return header === 'timestamp' ? new Date() : data[header];
    });

    sheet.getRange(nextRow, 1, 1, newRow.length).setValues([newRow]);
  } catch(e) {    
  } finally {
    lock.releaseLock();
  }
}

Index.html:

<!DOCTYPE html>
<html>
  <head>
    <base target="_top">
  </head>
  <body>
    <form name="submit-to-google-sheet">
      <label for="sheet">Sheet:</label><br>
      <select id="sheet" name="sheet">
        <option value="Local">Local</option>
        <option value="Global">Global</option>
        <option value="Dungeon">Dungeon</option>
      </select>
      <input name="email" type="email" placeholder="Email" required>
      <input name="firstName" type="text" placeholder="First Name">
      <input name="lastName" type="text" placeholder="Last Name">
      <button type="submit" onclick="google.script.run.processData(this.form);">Send</button>
    </form> 
  </body>
</html>

Input:

Output:

CodePudding user response：

Octavia, thankyou for the detailed proof. However, the answer to my question was this:

const sheet = doc.getSheetByName(e.parameter[sheetName])

I am able to refer to the incoming form data using the syntax e.parameter[<column header>]