Google Scripts bound spreadsheet script to get data from Steam Spy and place in sheet

SteamSpyUtil.gs

function getSteamSpyAppDetails() {
  // Get the appId from spreadsheet for now:
  var sheet = SpreadsheetApp.getActiveSheet();
  var appId = sheet.getDataRange().getCell(1, 1).getValue();
  
  // Build query
  var url = 'https://steamspy.com/api.php'
    + '?request=appdetails&appid=' + encodeURIComponent(appId);

  Logger.log("Sending: \"%s\"", url);
  var response = UrlFetchApp.fetch(url, {'muteHttpExceptions': true});
  Logger.log(response);
  
  // Get the data out
  var json = response.getContentText();
  var data = JSON.parse(json);
  Logger.log("Tags: %s", data.tags);
  var tags = data.tags;
  
  // If we didn't use sheets above, do it now
  // var sheet = SpreadsheetApp.getActiveSheet();
  
  // Process tags data into 2 arrays (from {"FPS":20545,"Multiplayer":16593} to ["FPS","Multiplayer"] and [20545,16593]
  var headers = new Array();
  var values = new Array();
  for (var k in tags) {
    headers.push(k);
    values.push(tags[k]);
  }
//  Logger.log("headers: \"%s\"", headers);
//  Logger.log("values: \"%s\"", values);
  
  // Append to the spreadsheet
  sheet.appendRow(headers);
  sheet.appendRow(values);
}