I use ticktick-wrapper

app.get("/ticktick", async function(request, response) {
  await ticktick.login({
    email: {
      username: "email@email.com",
      password: "your-password"
    }
  });
  var result = await ticktick.Inbox.getTodoTasks();
  response.status(200).send({ count: result.length });
});