@gablura/auth-next

Production-ready Next.js authentication with NextAuth.js. Drop-in auth with credentials, Google OAuth, 2FA, email verification, and password reset.

Why it exists

NextAuth handles session management and OAuth. This package adds what NextAuth does not provide out of the box:

Features

• NextAuth.js with JWT strategy
• Credentials + Google OAuth providers
• 2FA (TOTP) for both credential and OAuth logins
• Email verification with token-based flow
• Password reset with email delivery
• Token exchange — HMAC-signed proof to backend
• Silent refresh — Automatic token renewal
• Pre-built UI components — Login, register, forgot/reset password, email verification
• React hooks — Build your own custom UI with form logic
• API route handlers — Ready-to-use Next.js route handlers
• ORM-agnostic — Works with Prisma, Drizzle, MongoDB, or any custom backend

Next.js Compatibility

Two ways to use

Option A: Pre-built Components

import { AuthPage, ForgotPasswordPage, ResetPasswordPage, VerifyEmailPage } from "@gablura/auth-next/components";

// Full auth UI with zero custom code

Option B: Custom UI (Hooks)

"use client";
import { useAuthForm } from "@gablura/auth-next/hooks";

export default function MyLogin() {
  const { register, handleSubmit, errors, isSubmitting, onSubmit, handleGoogle } = useAuthForm({
    mode: "login",
    callbackUrl: "/dashboard",
  });

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input {...register("email")} placeholder="Email" />
      <input {...register("password")} type="password" placeholder="Password" />
      <button type="submit" disabled={isSubmitting}>Sign in</button>
      <button type="button" onClick={handleGoogle}>Google</button>
    </form>
  );
}

Installation

Install

npm install @gablura/auth-next next-auth

Peer dependencies

Environment variables

AUTH_SECRET=your-shared-secret-with-backend
NEXTAUTH_SECRET=your-nextauth-jwt-secret
NEXTAUTH_URL=https://your-app.com
BACKEND_URL=http://localhost:5000

# Google OAuth (optional)
GOOGLE_CLIENT_ID=...
GOOGLE_CLIENT_SECRET=...

# Email
EMAIL_SERVER_HOST=smtp.example.com
EMAIL_SERVER_PORT=587
EMAIL_SERVER_USER=...
EMAIL_SERVER_PASSWORD=...
EMAIL_FROM=noreply@example.com

Quick Start

1. Create API route

// app/api/auth/[...nextauth]/route.ts
import { createAuthOptions } from "@gablura/auth-next";
import { PrismaAdapter } from "@next-auth/prisma-adapter";
import { prisma } from "@/lib/prisma";

const authOptions = await createAuthOptions({
  hmacSecret: process.env.AUTH_SECRET!,
  nextAuthSecret: process.env.NEXTAUTH_SECRET,
  backendUrl: process.env.BACKEND_URL,
  google: {
    clientId: process.env.GOOGLE_CLIENT_ID!,
    clientSecret: process.env.GOOGLE_CLIENT_SECRET!,
  },
  adapter: PrismaAdapter(prisma),
  dataStore: {
    findUserByEmail: (email) => prisma.user.findUnique({ where: { email } }),
    createUser: (data) => prisma.user.create({ data }),
    updateUserByEmail: (email, data) => prisma.user.update({ where: { email }, data }),
    createVerificationToken: (data) => prisma.verificationToken.create({ data }),
    findVerificationToken: (token) => prisma.verificationToken.findUnique({ where: { token } }),
    deleteVerificationToken: (token, identifier) =>
      prisma.verificationToken.delete({ where: { token_identifier: { token, identifier } } }),
    createPasswordResetToken: (data) => prisma.passwordResetToken.create({ data }),
    findPasswordResetToken: (token) => prisma.passwordResetToken.findFirst({ where: { token, expires: { gt: new Date() } } }),
    deletePasswordResetToken: (email) => prisma.passwordResetToken.delete({ where: { email } }),
  },
  userStore: {
    findByEmail: (email) => prisma.user.findUnique({ where: { email } }),
    findById: (id) => prisma.user.findUnique({ where: { id } }),
    update: (id, data) => prisma.user.update({ where: { id }, data }),
  },
  pages: {
    signIn: "/auth/login",
    error: "/auth/error",
  },
});

export const GET = authOptions.handlers.GET;
export const POST = authOptions.handlers.POST;

2. Add auth pages

// app/auth/login/page.tsx
import { AuthPage } from "@gablura/auth-next/components";

export default function Login() {
  return <AuthPage callbackUrl="/dashboard" />;
}

3. Set up proxy (Next.js 16+)

// proxy.ts (Next.js 16+)
import { withAuth } from "next-auth/middleware";

export default withAuth({
  pages: { signIn: "/auth/login" },
});

export const config = {
  matcher: ["/dashboard/:path*", "/settings/:path*"],
};

Configuration

AuthNextConfig

interface AuthNextConfig {
  backendUrl?: string;          // Backend URL (default: env.BACKEND_URL)
  hmacSecret: string;           // Required — shared with backend
  nextAuthSecret?: string;      // Optional — defaults to hmacSecret
  google?: {
    clientId: string;
    clientSecret: string;
  };
  pages?: {
    signIn?: string;
    error?: string;
  };
  adapter?: unknown;            // PrismaAdapter, DrizzleAdapter, etc.
  dataStore: DataStore;         // Required — database operations
  userStore: {
    findByEmail(email: string): Promise<User | null>;
    findById(id: string): Promise<User | null>;
    update?(id: string, data: Record<string, unknown>): Promise<void>;
  };
  callbackRoutes?: {
    success?: string;           // After login (default: "/authentication/success")
    login?: string;             // Sign-in page
    register?: string;          // Register page
    twoFactor?: string;         // 2FA page
    verifyEmail?: string;       // After email verified
    verifyEmailPage?: string;   // Verify-email page in emails
    forgotPassword?: string;    // Forgot password
    resetPassword?: string;     // Reset password
    error?: string;             // Error page
  };
  sessionMaxAge?: number;       // Default: 7 days (seconds)
  sessionUpdateAge?: number;    // Default: 24 hours (seconds)
}

DataStore

The dataStore is required and makes the package ORM-agnostic:

interface DataStore {
  findUserByEmail(email: string): Promise<User | null>;
  createUser(data: { name?: string; email: string; password?: string }): Promise<{ id: string }>;
  updateUserByEmail(email: string, data: Record<string, unknown>): Promise<void>;
  createVerificationToken(data: { identifier: string; token: string; expires: Date }): Promise<void>;
  findVerificationToken(token: string): Promise<{ identifier: string; expires: Date } | null>;
  deleteVerificationToken(token: string, identifier: string): Promise<void>;
  createPasswordResetToken(data: { email: string; token: string; expires: Date }): Promise<void>;
  findPasswordResetToken(token: string): Promise<{ email: string; token: string } | null>;
  deletePasswordResetToken(email: string): Promise<void>;
}

Usage

Pre-built Components

All components are imported from @gablura/auth-next/components.

AuthPage

Full-screen login/register page with toggle.

import { AuthPage } from "@gablura/auth-next/components";

<AuthPage callbackUrl="/dashboard" />

ForgotPasswordPage

import { ForgotPasswordPage } from "@gablura/auth-next/components";

<ForgotPasswordPage />

ResetPasswordPage

import { ResetPasswordPage } from "@gablura/auth-next/components";

<ResetPasswordPage token={searchParams.get("token")} />

VerifyEmailPage

import { VerifyEmailPage } from "@gablura/auth-next/components";

<VerifyEmailPage token={searchParams.get("token")} />

Hooks

All hooks are imported from @gablura/auth-next/hooks.

useAuthForm

"use client";
import { useAuthForm } from "@gablura/auth-next/hooks";

function MyForm() {
  const {
    register,
    handleSubmit,
    errors,
    isSubmitting,
    onSubmit,
    handleGoogle,
    formError,
    clearFormError,
  } = useAuthForm({
    mode: "login",
    callbackUrl: "/dashboard",
  });

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input {...register("email")} />
      {errors.email && <span>{errors.email.message}</span>}
      <input {...register("password")} type="password" />
      <button type="submit" disabled={isSubmitting}>Sign in</button>
      <button type="button" onClick={handleGoogle}>Google</button>
    </form>
  );
}

useForgetPasswordPage

const { error, success, register, handleSubmit, errors, isSubmitting, onSubmit } = useForgetPasswordPage();

useResetPasswordPage

const { error, success, register, handleSubmit, errors, isSubmitting, onSubmit } = useResetPasswordPage({ token });

useVerifyEmail

const { status, message } = useVerifyEmail({ token });

API Route Handlers

All handlers are imported from @gablura/auth-next/api.

Email Functions

import { sendVerificationEmail, sendPasswordResetEmail } from "@gablura/auth-next/email";

License

MIT License

Copyright 2026 Gablura

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.