@cnippet-helm/auth-better-auth

Better Auth adapter for Admin Kit. Implements the AuthAdapter interface so Admin Kit can read the current session from Better Auth.

Install

pnpm add @cnippet-helm/auth-better-auth better-auth

Usage

// lib/auth.ts — your Better Auth instance
import { betterAuth } from "better-auth";
import { prismaAdapter } from "better-auth/adapters/prisma";
import { db } from "@/lib/db";

export const auth = betterAuth({
  database: prismaAdapter(db, { provider: "postgresql" }),
  emailAndPassword: { enabled: true },
});

// src/lib/admin.config.ts
import { defineConfig } from "@cnippet-helm/core";
import { betterAuthAdapter } from "@cnippet-helm/auth-better-auth";
import { headers } from "next/headers";
import { auth } from "@/lib/auth";
import { db } from "@/lib/db";

export const adminConfig = defineConfig({
  basePath: "/admin",
  db,
  auth: betterAuthAdapter({
    auth,
    getHeaders: () => headers(),
  }),
  resources: [],
});

API

betterAuthAdapter(options: {
  auth: BetterAuthInstance;     // your betterAuth({ ... }) instance
  getHeaders: () => Headers | Promise<Headers>;  // use next/headers in App Router
}): AuthAdapter

The adapter exposes:

• getSession() — calls auth.api.getSession({ headers }), returns { user: { id, email, name, ... } } or null
• getLoginUrl() — returns "/api/auth/sign-in"
• getLogoutUrl() — returns "/api/auth/sign-out"

See the Admin Kit docs for full usage.