Load data in background

[Ibrahim_Jamar (DevSphere </>)]

Its works but with this script

function doGet() {
  try {
    const ss = SpreadsheetApp.getActiveSpreadsheet();
    const sheets = ss.getSheets();

    let result = {};

    sheets.forEach(sheet => {
      result[sheet.getName()] = sheet.getDataRange().getValues();
    });

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

  } catch (e) {
    return ContentService
      .createTextOutput(
        JSON.stringify({ status: "error", message: e.toString() })
      )
      .setMimeType(ContentService.MimeType.JSON);
  }
}

@Sagar_Thosre you need to deploy this in your google sheets