index.js

delete("/v1/users/:id", async (context) => {
  if (context.params && context.params.id && !isNaN(parseInt(context.params.id))) {
    let isDeleted = await storage.deleteUser(context.params.id);
    if (isDeleted) {
      context.response.status = 204;
    } else {
      context.response.status = 404;
      context.response.body = { error: `User ${context.params.id} not found` };
    }
  } else {
    context.response.status = 400;
    context.response.body = { error: "Id must be number" };
  }
})