feat: Migrate from NextAuth to Better Auth

Backend changes:
- Add better-auth and pg packages
- Create Better Auth instance with PostgreSQL adapter
- Add Better Auth route handler at /api/auth/*
- Create migration script for Better Auth database schema
- Update main index to use Better Auth routes instead of custom auth
- Configure email/password and OAuth (GitHub/Google) providers

Frontend changes:
- Add better-auth client
- Create Better Auth client instance configuration
- Update lib/auth.ts to use Better Auth session
- Rewrite sign-in page with Better Auth methods
- Rewrite sign-up page with Better Auth methods
- Remove NextAuth route handler

Documentation:
- Add comprehensive migration guide with setup instructions
- Document environment variables and API endpoints
- Include testing checklist and rollback plan

Benefits:
- Unified authentication for both Elysia backend and Next.js frontend
- Database-backed sessions (more secure than JWT)
- Better TypeScript support
- Extensible plugin system for future features
- Active development and frequent updates
This commit is contained in:
Francesco
2026-02-20 04:13:26 +00:00
parent 73282c71af
commit f8356e0945
12 changed files with 583 additions and 154 deletions

View File

@@ -1,6 +1,6 @@
'use client';
import { signIn } from 'next-auth/react';
import { signIn } from '@/lib/better-auth';
import { useState } from 'react';
export default function SignIn() {
@@ -15,14 +15,13 @@ export default function SignIn() {
setError('');
try {
const result = await signIn('credentials', {
const result = await signIn.email({
email,
password,
redirect: false
});
if (result?.error) {
setError('Invalid credentials');
if (result.error) {
setError(result.error.message || 'Invalid credentials');
} else {
window.location.href = '/';
}
@@ -33,6 +32,17 @@ export default function SignIn() {
}
};
const handleSocialSignIn = async (provider: 'github' | 'google') => {
try {
await signIn.social({
provider,
callbackURL: '/',
});
} catch (err) {
setError(`Failed to sign in with ${provider}`);
}
};
return (
<div className="min-h-screen bg-gradient-to-br from-slate-900 to-slate-800 flex items-center justify-center p-4">
<div className="max-w-md w-full bg-slate-800/50 rounded-lg p-8 border border-slate-700">
@@ -99,16 +109,16 @@ export default function SignIn() {
<div className="mt-6 grid grid-cols-2 gap-4">
<button
onClick={() => signIn('github')}
onClick={() => handleSocialSignIn('github')}
className="bg-slate-700 hover:bg-slate-600 text-white font-semibold py-3 rounded-lg transition flex items-center justify-center gap-2"
>
<svg className="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
<path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546 1.377-1.333 1.377-1.333 1.06 0 1.783.591 1.783.591.266 0 .494-.107.68-.297.107-.297.469-.936.469-1.684 0-1.251-1.006-2.261-2.261-2.261-.965 0-1.757.781-1.757 1.753 0 .286.08.526.212.743.265.265.265.265.673 0 .995-.265.323-.646.454-.646.454-.323 0-.543-.181-.699-.468-.156-.287-.234-.744-.234-1.364v-2.261c-3.37.726-4.148-1.417-4.148-1.417-.557 1.39-1.353 1.39-1.353 1.073 0 1.814.603 1.814.603.277 0 .516-.111.728-.296.212-.185.313-.61.313-1.303 0-1.258-1.018-2.274-2.274-2.274-.984 0-1.796.802-1.796 1.796 0 .29.095.536.26.758.26.26.26.669 0 .996-.266.327-.649.457-.649.457-.33 0-.556-.186-.713-.48-.157-.293-.236-.767-.236-1.404v-2.279c-3.404.741-4.242-1.447-4.242-1.447-.569 1.416-1.379 1.416-1.379 1.084 0 1.829.616 1.829.616.283 0 .523-.113.742-.301.22-.188.327-.626.327-1.323 0-1.265-1.03-2.29-2.29-2.29-1.006 0-1.831.825-1.831 1.831 0 .294.099.543.277.767.277.277.277.693 0 1.004-.27.311-.663.437-.663.437-.34 0-.571-.197-.736-.506-.165-.31-.248-.794-.248-1.447v-2.293c-3.432.748-4.338-1.48-4.338-1.48-.583 1.44-1.404 1.44-1.404 1.095 0 1.846.629 1.846.629.29 0 .537-.116.76-.308.223-.192.34-.648.34-1.35 0-1.271-1.044-2.304-2.304-2.304-1.029 0-1.867.839-1.867 1.867 0 .298.102.55.286.775.286.286.286.718 0 1.039-.278.316-.682.443-.682.443-.349 0-.597-.204-.761-.523-.165-.32-.248-.825-.248-1.491v-2.307c-3.462.756-4.432-1.514-4.432-1.514-.597 1.463-1.431 1.463-1.431 1.105 0 1.864.64 1.864.64.297 0 .55-.119.774-.313.224-.193.353-.672.353-1.377 0-1.277-1.059-2.318-2.318-2.318-1.053 0-1.904.865-1.904 1.904 0 .302.105.557.297.786.297.297.297.741 0 1.075-.284.32-.716.447-.716.447-.358 0-.622-.211-.788-.549-.167-.338-.25-.858-.25-1.536v-2.322c-3.49.764-4.525-1.549-4.525-1.549-.611 1.487-1.457 1.487-1.457 1.116 0 1.882.651 1.882.651.303 0 .562-.123.792-.319.23-.196.361-.696.361-1.405 0-1.283-1.074-2.332-2.332-2.332-1.078 0-1.94.881-1.94 1.94 0 .306.107.567.303.798.303.303.303.763 0 1.111-.29.325-.75.452-.75.452-.367 0-.646-.219-.814-.575-.168-.357-.254-.891-.254-1.582v-2.336c-3.52.772-4.617-1.585-4.617-1.585-.625 1.511-1.484 1.511-1.484 1.127 0 1.9.663 1.9.663.309 0 .574-.127.81-.326.236-.199.368-.721.368-1.432 0-1.29-1.089-2.346-2.346-2.346-1.103 0-1.976.904-1.976 1.976 0 .31.109.579.31.81.31.31.31.784 0 1.147-.298.331-.783.457-.783.457-.376 0-.67-.227-.842-.602-.172-.376-.259-.923-.259-1.628v-2.35z"/>
<path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546 1.377-1.333 1.377-1.333 1.06 0 1.783.591 1.783.591.266 0 .494-.107.68-.297.107-.297.469-.936.469-1.684 0-1.251-1.006-2.261-2.261-2.261-.965 0-1.757.781-1.757 1.753 0 .286.08.526.212.743.265.265.265.673 0 .995-.265.323-.646.454-.646.454-.323 0-.543-.181-.699-.468-.156-.287-.234-.744-.234-1.364v-2.261c-3.37.726-4.148-1.417-4.148-1.417-.557 1.39-1.353 1.39-1.353 1.073 0 1.814.603 1.814.603.277 0 .516-.111.728-.296.212-.185.313-.61.313-1.303 0-1.258-1.018-2.274-2.274-2.274-.984 0-1.796.802-1.796 1.796 0 .29.095.536.26.758.26.26.26.669 0 .996-.266.327-.649.457-.649.457-.33 0-.556-.186-.713-.48-.157-.293-.236-.767-.236-1.404v-2.279c-3.404.741-4.242-1.447-4.242-1.447-.569 1.416-1.379 1.416-1.379 1.084 0 1.829.616 1.829.616.283 0 .523-.113.742-.301.22-.188.327-.626.327-1.323 0-1.265-1.03-2.29-2.29-2.29-1.006 0-1.831.825-1.831 1.831 0 .294.099.543.277.767.277.277.277.693 0 1.004-.27.311-.663.437-.663.437-.34 0-.571-.197-.736-.506-.165-.31-.248-.794-.248-1.447v-2.293c-3.432.748-4.338-1.48-4.338-1.48-.583 1.44-1.404 1.44-1.404 1.095 0 1.846.629 1.846.629.29 0 .537-.116.76-.308.223-.192.34-.648.34-1.35 0-1.271-1.044-2.304-2.304-2.304-1.029 0-1.867.839-1.867 1.867 0 .298.102.55.286.775.286.286.286.718 0 1.039-.278.316-.682.443-.682.443-.349 0-.597-.204-.761-.523-.165-.32-.248-.825-.248-1.491v-2.307c-3.462.756-4.432-1.514-4.432-1.514-.597 1.463-1.431 1.463-1.431 1.105 0 1.864.64 1.864.64.297 0 .55-.119.774-.313.224-.193.353-.672.353-1.377 0-1.277-1.059-2.318-2.318-2.318-1.053 0-1.904.865-1.904 1.904 0 .302.105.557.297.786.297.297.297.741 0 1.075-.284.32-.716.447-.716.447-.358 0-.622-.211-.788-.549-.167-.338-.25-.858-.25-1.536v-2.322c-3.49.764-4.525-1.549-4.525-1.549-.611 1.487-1.457 1.487-1.457 1.116 0 1.882.651 1.882.651.303 0 .562-.123.792-.319.23-.196.361-.696.361-1.405 0-1.283-1.074-2.332-2.332-2.332-1.078 0-1.94.881-1.94 1.94 0 .306.107.567.303.798.303.303.303.763 0 1.111-.29.325-.75.452-.75.452-.367 0-.646-.219-.814-.575-.168-.357-.254-.891-.254-1.582v-2.336c-3.52.772-4.617-1.585-4.617-1.585-.625 1.511-1.484 1.511-1.484 1.127 0 1.9.663 1.9.663.309 0 .574-.127.81-.326.236-.199.368-.721.368-1.432 0-1.29-1.089-2.346-2.346-2.346-1.103 0-1.976.904-1.976 1.976 0 .31.109.579.31.81.31.31.31.784 0 1.147-.298.331-.783.457-.783.457-.376 0-.67-.227-.842-.602-.172-.376-.259-.923-.259-1.628v-2.35z"/>
</svg>
GitHub
</button>
<button
onClick={() => signIn('google')}
onClick={() => handleSocialSignIn('google')}
className="bg-slate-700 hover:bg-slate-600 text-white font-semibold py-3 rounded-lg transition flex items-center justify-center gap-2"
>
<svg className="w-5 h-5" viewBox="0 0 24 24">