How to update / refresh Better Auth session without disabling cookie cache?

While I am working on Lipy — India’s local commerce app. I wanted users to be able to create their store and after that I want to quickly update their sessions with their store details.

But I had cookie cache enabled + I have secondary store where I am caching user session in Redis DB and I wanted to update session directly.

So there were two options in front of me —

1. Either disable cookie caches & secondary storage — ( which means long response time.)
2. Update Redis store directly & expire cookie cache.

I went with second option, Below is an function which helps you update session directly from Redis & then expire cookie data.

Assuming you’re not beginner with Better Auth, I have shared the helper function below:

If you find this function difficult to understand, feel free to ask questions or refer to Better Auth documentation.

import type { Context } from "hono";
import { deleteCookie } from "hono/cookie";
import { auth } from "@/auth";
import env from "@/env";
import { redis } from "@/services/cache";
import type { ServerContext } from "@/types";

export const updateSession = async (
  c: Context<ServerContext>,
  data: NonNullable<Awaited<ReturnType<typeof auth.api.getSession>>>
) => {
  if (!data?.session?.token) throw Error("No token!");
  await redis.set(data.session.token, JSON.stringify(data));
  await clearSessionDataCookie(c);
  return true;
};

export const clearSessionDataCookie = async (c: Context<ServerContext>) => {
  const sessData = (await auth.$context).authCookies.sessionData.name;
  deleteCookie(c, sessData, {
    path: "/",
    maxAge: 0,
    expires: new Date(0),
    sameSite: env.IN_PROD ? "None" : "Lax",
    ...(env.IN_PROD && {
      secure: true,
      httpOnly: true,
      domain: `.${env.BETTER_AUTH_URL.split(".").slice(1).join(".")}`,
    }),
  });
};

If you know any better way to accomplish this feel free to comment!