# RDS Supabase GitHub SSO演示源码配置指导
#### 操作场景
本章节用于指导如何完整的创建演示Demo项目，并创建好所有的源码文件。请严格按照目录及文件结构，在本地创建项目工程及相关目录；并依次新建对应的文件，拷贝所有源码内容。
#### 目录及文件结构
图1Demo项目目录及文件结构概览   
![](https://support.huaweicloud.com/bestpractice-rds-pg/zh-cn_image_0000002743967213.png "点击放大")
Demo项目目录及文件结构层次关系如下：
```
supabase_auth_github  //项目根目录
├── .env  //Supabase环境变量配置
├── index.html  //首页界面
├── package.json  //打包依赖配置
├── vite.config.js
└── src  //核心功能源码目录
├── App.jsx
├── index.css
├── main.jsx
├── components
│   ├── Dashboard.jsx
│   └── Login.jsx
├── context
│   ├── AuthContext.jsx
│   └── LanguageContext.jsx
├── i18n
│   └── index.js
└── lib
└── supabaseClient.js
```
#### 文件内容
#### .env
```
# 替换为RDS Supabase的公网访问地址
VITE_SUPABASE_URL={supabase_url}
# 替换为RDS Supabase的Anon API Key
VITE_SUPABASE_ANON_KEY={supabase_api_key}
```
#### index.html
```
<!doctype html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Supabase GitHub SSO 登录</title>
  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.jsx"></script>
  </body>
</html>
```
#### package.json
```
{
  "name": "supabase-github-sso",
  "private": true,
  "version": "0.1.0",
  "type": "module",
  "scripts": {
    "dev": "vite",
    "build": "vite build",
    "preview": "vite preview"
  },
  "dependencies": {
    "@supabase/supabase-js": "^2.45.4",
    "react": "^18.3.1",
    "react-dom": "^18.3.1",
    "react-router-dom": "^6.26.2"
  },
  "devDependencies": {
    "@vitejs/plugin-react": "^5.0.0",
    "vite": "^6.3.0"
  }
}
```
#### vite.config.js
```
import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
// https://vitejs.dev/config/
export default defineConfig({
  plugins: [react()],
  server: {
    host: true,
    port: 5173
  }
})
```
#### App.jsx
```
import { Navigate, Route, Routes } from 'react-router-dom'
import { AuthProvider, useAuth } from './context/AuthContext'
import { LanguageProvider, useLang } from './context/LanguageContext'
import Login from './components/Login'
import Dashboard from './components/Dashboard'
function LangSwitch() {
  const { lang, toggleLang } = useLang()
  return (
    <button className="lang-switch" onClick={toggleLang} aria-label="Switch language">
      {lang === 'zh' ? 'EN' : '中'}
    </button>
  )
}
function ProtectedRoute({ children }) {
  const { session, loading } = useAuth()
  const { t } = useLang()
  if (loading) {
    return (
      <div className="full-center">
        <span className="spinner spinner-lg" />
        <p>{t.loadingSession}</p>
      </div>
    )
  }
  if (!session) {
    return <Navigate to="/" replace />
  }
  return children
}
function RootRoute() {
  const { session, loading } = useAuth()
  const { t } = useLang()
  if (loading) {
    return (
      <div className="full-center">
        <span className="spinner spinner-lg" />
        <p>{t.loadingSession}</p>
      </div>
    )
  }
  if (session) {
    return <Navigate to="/demo" replace />
  }
  return <Login />
}
export default function App() {
  return (
    <LanguageProvider>
      <AuthProvider>
        <LangSwitch />
        <Routes>
          <Route path="/" element={<RootRoute />} />
          <Route
            path="/demo"
            element={
              <ProtectedRoute>
                <Dashboard />
              </ProtectedRoute>
            }
          />
          <Route path="*" element={<Navigate to="/" replace />} />
        </Routes>
      </AuthProvider>
    </LanguageProvider>
  )
}
```
#### index.css
```
:root {
  --color-primary: #3ecf8e;
  --color-primary-dark: #1a7f5a;
  --color-bg: #f0fdf4;
  --color-bg-gradient-start: #f0fdf4;
  --color-bg-gradient-end: #dcfce7;
  --color-card: #ffffff;
  --color-text: #1f2937;
  --color-text-secondary: #6b7280;
  --color-border: #bbf7d0;
  --color-error: #ef4444;
  --color-error-bg: #fef2f2;
  --color-success: #10b981;
  --color-success-bg: #ecfdf5;
  --color-info: #3b82f6;
  --color-info-bg: #eff6ff;
  --color-elevated: #f0fdf4;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 16px rgba(0, 0, 0, 0.04);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body,
#root {
  height: 100%;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter',
    'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', Roboto, sans-serif;
  background: linear-gradient(135deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 100%);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}
/* ===== 语言切换按钮 ===== */
.lang-switch {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  z-index: 100;
  transition: all 0.2s ease;
}
.lang-switch:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: scale(1.05);
}
/* ===== 装饰性背景光斑 ===== */
.auth-page,
.dashboard-page {
  position: relative;
}
.auth-page::before,
.auth-page::after,
.dashboard-page::before,
.dashboard-page::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}
.auth-page::before,
.dashboard-page::before {
  width: 400px;
  height: 400px;
  background: var(--color-primary);
  top: -100px;
  right: -100px;
}
.auth-page::after,
.dashboard-page::after {
  width: 300px;
  height: 300px;
  background: var(--color-primary-dark);
  bottom: -50px;
  left: -50px;
  opacity: 0.2;
}
.auth-page > *,
.dashboard-page > * {
  position: relative;
  z-index: 1;
}
/* ===== 全局居中加载 ===== */
.full-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  height: 100vh;
  color: var(--color-text-secondary);
}
/* ===== 登录页 ===== */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}
.auth-card {
  width: 100%;
  max-width: 520px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow);
}
.auth-logo {
  width: 84px;
  height: 84px;
  margin: 0 auto 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-title {
  margin-bottom: 24px;
  white-space: nowrap;
}
.auth-title-highlight {
  display: block;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  padding-bottom: 16px;
}
.auth-title-highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
}
.auth-subtitle {
  color: var(--color-text-secondary);
  font-size: 13px;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}
.btn-github {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}
.btn-github:hover:not(:disabled) {
  background: var(--color-primary-dark);
}
.btn-github:active:not(:disabled) {
  transform: scale(0.98);
}
.btn-github:disabled {
  opacity: 0.6;
  cursor: default;
}
.auth-error {
  margin-top: 16px;
  padding: 10px 12px;
  font-size: 13px;
  color: #991b1b;
  background: var(--color-error-bg);
  border: 1px solid #fecaca;
  border-radius: 8px;
}
.auth-flow {
  margin-top: 24px;
  padding: 14px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  text-align: left;
}
.auth-flow-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary-dark);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.auth-flow-steps {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.auth-flow-steps li {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.auth-flow-step-num {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.auth-flow-step-content {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}
.auth-flow-step-content strong {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
}
.auth-flow-step-content span {
  font-size: 11px;
  color: var(--color-text-secondary);
  line-height: 1.4;
}
/* ===== 仪表盘页 ===== */
.dashboard-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}
.dashboard-card {
  width: 100%;
  max-width: 520px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.dashboard-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 24px 20px;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(135deg, var(--color-bg-gradient-start), var(--color-bg-gradient-end));
}
.dashboard-header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.github-corner {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  transition: all 0.2s ease;
}
.github-corner:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: scale(1.05);
}
.dashboard-theme {
  white-space: nowrap;
}
.dashboard-theme-highlight {
  display: inline-block;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  padding-bottom: 14px;
}
.dashboard-theme-highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
}
.dashboard-welcome {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}
.dashboard-welcome-name {
  color: var(--color-primary-dark);
  font-weight: 600;
}
.btn-logout:disabled {
  opacity: 0.6;
  cursor: default;
}
.profile {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 28px 24px;
}
.avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  flex-shrink: 0;
}
.avatar-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: 28px;
  font-weight: 700;
}
.profile-info {
  min-width: 0;
}
.profile-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.profile-username {
  color: var(--color-primary-dark);
  font-size: 14px;
  margin-bottom: 2px;
}
.profile-email {
  color: var(--color-text-secondary);
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.detail-list {
  padding: 0 24px 24px;
  display: flex;
  flex-direction: column;
}
.detail-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  cursor: pointer;
  transition: background 0.2s ease;
  border-bottom: 1px solid var(--color-border);
}
.detail-row:first-child {
  padding-top: 0;
}
.detail-row:last-child {
  border-bottom: none;
}
.detail-row:hover {
  background: var(--color-bg);
  margin: 0 -12px;
  padding-left: 12px;
  padding-right: 12px;
  border-radius: 6px;
}
.detail-label {
  color: var(--color-text-secondary);
  font-size: 13px;
  flex-shrink: 0;
  font-weight: 500;
}
.detail-value {
  font-size: 13px;
  color: var(--color-text);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 320px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}
.detail-token {
  color: var(--color-primary-dark);
}
.detail-row-token {
  cursor: default;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
}
.detail-row-token:hover {
  background: transparent;
  margin: 0;
  padding-left: 0;
  padding-right: 0;
  border-radius: 0;
}
.token-field {
  display: flex;
  gap: 8px;
}
.token-input {
  flex: 1;
  padding: 8px 12px;
  font-size: 13px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.token-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(62, 207, 142, 0.15);
}
.token-copy-btn {
  flex-shrink: 0;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}
.token-copy-btn:hover:not(:disabled) {
  background: var(--color-primary-dark);
}
.token-copy-btn:active:not(:disabled) {
  transform: scale(0.96);
}
.token-copy-btn:disabled {
  opacity: 0.6;
  cursor: default;
}
.detail-row-logout {
  cursor: default;
  padding-top: 20px;
}
.detail-row-logout:hover {
  background: transparent;
  margin: 0;
  padding-left: 0;
  padding-right: 0;
  border-radius: 0;
}
.btn-logout {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}
.btn-logout:hover:not(:disabled) {
  background: var(--color-primary-dark);
}
.btn-logout:active:not(:disabled) {
  transform: scale(0.98);
}
/* ===== 加载动画 ===== */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.spinner-lg {
  width: 36px;
  height: 36px;
  border-width: 3px;
  border-color: var(--color-border);
  border-top-color: var(--color-primary);
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
```
#### main.jsx
```
import React from 'react'
import ReactDOM from 'react-dom/client'
import { BrowserRouter } from 'react-router-dom'
import App from './App'
import './index.css'
ReactDOM.createRoot(document.getElementById('root')).render(
  <React.StrictMode>
    <BrowserRouter>
      <App />
    </BrowserRouter>
  </React.StrictMode>
)
```
#### Dashboard.jsx
```
import { useAuth } from '../context/AuthContext'
import { useLang } from '../context/LanguageContext'
import { useNavigate } from 'react-router-dom'
import { useState, useMemo } from 'react'
export default function Dashboard() {
  const { user, session, signOut } = useAuth()
  const { t, lang } = useLang()
  const navigate = useNavigate()
  const [signingOut, setSigningOut] = useState(false)
  const [tokenCopied, setTokenCopied] = useState(false)
  const meta = user?.user_metadata ?? {}
  const name = meta.full_name || meta.name || meta.user_name || t.githubUser
  const username = meta.user_name
  const avatar = meta.avatar_url
  const email = user?.email || meta.email
  const loginTime = useMemo(() => {
    const raw = session?.created_at || user?.created_at
    if (!raw) return '—'
    const d = new Date(raw)
    if (isNaN(d.getTime())) return '—'
    return d.toLocaleString(lang === 'zh' ? 'zh-CN' : 'en-US', {
      year: 'numeric',
      month: '2-digit',
      day: '2-digit',
      hour: '2-digit',
      minute: '2-digit',
      second: '2-digit'
    })
  }, [session?.created_at, user?.created_at, lang])
  const handleSignOut = async () => {
    setSigningOut(true)
    const ok = await signOut()
    setSigningOut(false)
    if (ok) navigate('/', { replace: true })
  }
  const copyToClipboard = async (text) => {
    if (!text) return false
    try {
      await navigator.clipboard.writeText(text)
      return true
    } catch {
      try {
        const textarea = document.createElement('textarea')
        textarea.value = text
        textarea.style.position = 'fixed'
        textarea.style.opacity = '0'
        document.body.appendChild(textarea)
        textarea.select()
        const ok = document.execCommand('copy')
        document.body.removeChild(textarea)
        return ok
      } catch {
        return false
      }
    }
  }
  const handleCopyToken = async () => {
    const token = session?.access_token
    if (!token) return
    const ok = await copyToClipboard(token)
    if (ok) {
      setTokenCopied(true)
      setTimeout(() => setTokenCopied(false), 2000)
    }
  }
  const handleCopy = async (text) => {
    await copyToClipboard(text)
  }
  return (
    <div className="dashboard-page">
      <div className="dashboard-card">
        <header className="dashboard-header">
          <div className="dashboard-header-top">
            <h2 className="dashboard-theme">
              <span className="dashboard-theme-highlight">Supabase GitHub SSO</span>
            </h2>
            <a
              href="https://github.com"
              target="_blank"
              rel="noopener noreferrer"
              className="github-corner"
              aria-label="GitHub"
            >
              <svg viewBox="0 0 16 16" width="20" height="20" aria-hidden="true">
                <path
                  fill="currentColor"
                  d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.01 8.01 0 0 0 16 8c0-4.42-3.58-8-8-8z"
                />
              </svg>
            </a>
          </div>
          <p className="dashboard-welcome">
            {t.dashboardWelcome}
          </p>
        </header>
        <div className="profile">
          {avatar ? (
            <img className="avatar" src={avatar} alt={name} />
          ) : (
            <div className="avatar avatar-fallback">{name.charAt(0).toUpperCase()}</div>
          )}
          <div className="profile-info">
            <h3 className="profile-name">{name}</h3>
            {username && <p className="profile-username">@{username}</p>}
            {email && <p className="profile-email">{email}</p>}
          </div>
        </div>
        <div className="detail-list">
          <div className="detail-row" onClick={() => handleCopy(user?.id)}>
            <span className="detail-label">{t.userId}</span>
            <span className="detail-value" title={user?.id}>{user?.id ?? '—'}</span>
          </div>
          <div className="detail-row" onClick={() => handleCopy(email)}>
            <span className="detail-label">{t.email}</span>
            <span className="detail-value" title={email}>{email ?? '—'}</span>
          </div>
          <div className="detail-row detail-row-token">
            <span className="detail-label">{t.accessToken}</span>
            <div className="token-field">
              <input
                type="password"
                className="token-input"
                value={session?.access_token ?? ''}
                readOnly
              />
              <button
                type="button"
                className="token-copy-btn"
                onClick={handleCopyToken}
                disabled={!session?.access_token}
              >
                {tokenCopied ? t.copied : t.copyToken}
              </button>
            </div>
          </div>
          <div className="detail-row">
            <span className="detail-label">{t.loginMethod}</span>
            <span className="detail-value">
              {user?.app_metadata?.provider ?? 'github'}
            </span>
          </div>
          <div className="detail-row">
            <span className="detail-label">{t.loginTime}</span>
            <span className="detail-value">{loginTime}</span>
          </div>
          <div className="detail-row detail-row-logout">
            <button
              type="button"
              className="btn-logout"
              onClick={handleSignOut}
              disabled={signingOut}
            >
              {signingOut ? t.loggingOut : t.logout}
            </button>
          </div>
        </div>
      </div>
    </div>
  )
}
```
#### Login.jsx
```
import { useState } from 'react'
import { useAuth } from '../context/AuthContext'
import { useLang } from '../context/LanguageContext'
export default function Login() {
  const { signInWithGitHub, error } = useAuth()
  const { t } = useLang()
  const [pending, setPending] = useState(false)
  const handleGitHubLogin = async () => {
    setPending(true)
    await signInWithGitHub()
    setPending(false)
  }
  return (
    <div className="auth-page">
      <div className="auth-card">
        <div className="auth-logo">
          <svg viewBox="0 0 24 24" width="56" height="56" aria-hidden="true">
            <path
              fill="#1f2937"
              d="M12 2C6.48 2 2 6.58 2 12.25c0 4.53 2.87 8.37 6.84 9.73.5.1.68-.22.68-.49 0-.24-.01-.88-.01-1.73-2.78.62-3.37-1.37-3.37-1.37-.46-1.18-1.11-1.5-1.11-1.5-.91-.64.07-.62.07-.62 1 .07 1.53 1.06 1.53 1.06.89 1.56 2.34 1.11 2.91.85.09-.66.35-1.11.63-1.37-2.22-.26-4.55-1.14-4.55-5.07 0-1.12.39-2.03 1.03-2.75-.1-.26-.45-1.3.1-2.71 0 0 .84-.28 2.75 1.05A9.36 9.36 0 0 1 12 6.84c.85 0 1.71.12 2.51.35 1.91-1.33 2.75-1.05 2.75-1.05.55 1.41.2 2.45.1 2.71.64.72 1.03 1.63 1.03 2.75 0 3.94-2.34 4.81-4.57 5.06.36.32.68.94.68 1.9 0 1.37-.01 2.48-.01 2.82 0 .27.18.6.69.49A10.26 10.26 0 0 0 22 12.25C22 6.58 17.52 2 12 2z"
            />
          </svg>
        </div>
        <h1 className="auth-title">
          <span className="auth-title-highlight">Supabase GitHub SSO</span>
        </h1>
        <p className="auth-subtitle">{t.loginSubtitle}</p>
        <button
          type="button"
          className="btn-github"
          onClick={handleGitHubLogin}
          disabled={pending}
        >
          {pending ? (
            <>
              <span className="spinner" aria-hidden="true" />
              {t.loginPending}
            </>
          ) : (
            <>
              <svg viewBox="0 0 16 16" width="20" height="20" aria-hidden="true">
                <path
                  fill="currentColor"
                  d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.01 8.01 0 0 0 16 8c0-4.42-3.58-8-8-8z"
                />
              </svg>
              {t.loginButton}
            </>
          )}
        </button>
        {error && <p className="auth-error" role="alert">{error}</p>}
        <div className="auth-flow">
          <p className="auth-flow-title">{t.flowTitle}</p>
          <ol className="auth-flow-steps">
            <li>
              <span className="auth-flow-step-num">1</span>
              <div className="auth-flow-step-content">
                <strong>{t.flowStep1Title}</strong>
                <span>{t.flowStep1Desc}</span>
              </div>
            </li>
            <li>
              <span className="auth-flow-step-num">2</span>
              <div className="auth-flow-step-content">
                <strong>{t.flowStep2Title}</strong>
                <span>{t.flowStep2Desc}</span>
              </div>
            </li>
            <li>
              <span className="auth-flow-step-num">3</span>
              <div className="auth-flow-step-content">
                <strong>{t.flowStep3Title}</strong>
                <span>{t.flowStep3Desc}</span>
              </div>
            </li>
            <li>
              <span className="auth-flow-step-num">4</span>
              <div className="auth-flow-step-content">
                <strong>{t.flowStep4Title}</strong>
                <span>{t.flowStep4Desc}</span>
              </div>
            </li>
          </ol>
        </div>
      </div>
    </div>
  )
}
```
#### AuthContext.jsx
```
import { createContext, useContext, useEffect, useState, useCallback } from 'react'
import { supabase } from '../lib/supabaseClient'
const AuthContext = createContext(null)
export function AuthProvider({ children }) {
  const [session, setSession] = useState(null)
  const [loading, setLoading] = useState(true)
  const [error, setError] = useState(null)
  useEffect(() => {
    let mounted = true
    // 初始化时获取当前会话
    supabase.auth.getSession().then(({ data, error }) => {
      if (!mounted) return
      if (error) {
        setError(error.message)
      } else {
        setSession(data.session)
      }
      setLoading(false)
    })
    // 监听认证状态变化
    const { data: listener } = supabase.auth.onAuthStateChange((_event, newSession) => {
      setSession(newSession)
      setError(null)
    })
    return () => {
      mounted = false
      listener.subscription.unsubscribe()
    }
  }, [])
  // 使用 GitHub OAuth 登录
  const signInWithGitHub = useCallback(async () => {
    setError(null)
    const { error } = await supabase.auth.signInWithOAuth({
      provider: 'github',
      options: {
        redirectTo: window.location.origin
      }
    })
    if (error) {
      setError(error.message)
      return false
    }
    return true
  }, [])
  // 登出
  const signOut = useCallback(async () => {
    setError(null)
    const { error } = await supabase.auth.signOut()
    if (error) {
      setError(error.message)
      return false
    }
    setSession(null)
    return true
  }, [])
  const value = {
    session,
    user: session?.user ?? null,
    loading,
    error,
    signInWithGitHub,
    signOut
  }
  return <AuthContext.Provider value={value}>{children}</AuthContext.Provider>
}
export function useAuth() {
  const ctx = useContext(AuthContext)
  if (ctx === null) {
    throw new Error('useAuth 必须在 AuthProvider 内部使用')
  }
  return ctx
}
```
#### LanguageContext.jsx
```
import { createContext, useContext, useState, useCallback, useEffect } from 'react'
import { translations } from '../i18n'
const LanguageContext = createContext(null)
export function LanguageProvider({ children }) {
  const [lang, setLang] = useState(() => {
    const saved = localStorage.getItem('app-lang')
    return saved === 'en' ? 'en' : 'zh'
  })
  useEffect(() => {
    localStorage.setItem('app-lang', lang)
  }, [lang])
  const toggleLang = useCallback(() => {
    setLang((prev) => (prev === 'zh' ? 'en' : 'zh'))
  }, [])
  const t = translations[lang]
  const value = { lang, toggleLang, t }
  return <LanguageContext.Provider value={value}>{children}</LanguageContext.Provider>
}
export function useLang() {
  const ctx = useContext(LanguageContext)
  if (ctx === null) {
    throw new Error('useLang must be used within LanguageProvider')
  }
  return ctx
}
```
#### index.js
```
export const translations = {
  zh: {
    // Login page
    loginSubtitle: '使用 GitHub 账号登录以继续',
    loginButton: '使用 GitHub 登录',
    loginPending: '正在跳转 GitHub...',
    flowTitle: 'SSO 认证流程',
    flowStep1Title: '发起授权',
    flowStep1Desc: '点击登录后，应用通过 Supabase 向 GitHub OAuth 发起授权请求',
    flowStep2Title: 'GitHub 授权',
    flowStep2Desc: '跳转至 GitHub 页面，由您确认授权应用访问您的账号信息',
    flowStep3Title: '回调换令牌',
    flowStep3Desc: 'GitHub 授权后携带 code 回调本应用，Supabase 用 code 换取 Access Token',
    flowStep4Title: '建立会话',
    flowStep4Desc: 'Supabase 创建用户会话，自动返回本应用并完成登录',
    // Dashboard
    dashboardWelcome: '登录成功，欢迎您体验RDS AI应用开发平台',
    userId: '用户 ID',
    email: '邮箱',
    accessToken: 'Access Token',
    copyToken: '点击复制',
    copied: '已复制',
    loginMethod: '登录方式',
    loginTime: '登录时间',
    logout: '退出登录',
    loggingOut: '登出中...',
    githubUser: 'GitHub 用户',
    // App loading
    loadingSession: '正在加载会话...',
  },
  en: {
    // Login page
    loginSubtitle: 'Sign in with your GitHub account to continue',
    loginButton: 'Sign in with GitHub',
    loginPending: 'Redirecting to GitHub...',
    flowTitle: 'SSO Authentication Flow',
    flowStep1Title: 'Initiate Auth',
    flowStep1Desc: 'After clicking, the app sends an OAuth request to GitHub via Supabase',
    flowStep2Title: 'GitHub Authorize',
    flowStep2Desc: 'Redirect to GitHub where you authorize the app to access your account',
    flowStep3Title: 'Callback & Token',
    flowStep3Desc: 'GitHub redirects back with a code, Supabase exchanges it for an Access Token',
    flowStep4Title: 'Establish Session',
    flowStep4Desc: 'Supabase creates a user session and returns to the app, completing login',
    // Dashboard
    dashboardWelcome: 'Login successful, welcome to RDS AI Application Development Platform',
    userId: 'User ID',
    email: 'Email',
    accessToken: 'Access Token',
    copyToken: 'Copy',
    copied: 'Copied',
    loginMethod: 'Login Method',
    loginTime: 'Login Time',
    logout: 'Sign Out',
    loggingOut: 'Signing out...',
    githubUser: 'GitHub User',
    // App loading
    loadingSession: 'Loading session...',
  },
}
```
#### supabaseClient.js
```
import { createClient } from '@supabase/supabase-js'
const supabaseUrl = import.meta.env.VITE_SUPABASE_URL
const supabaseAnonKey = import.meta.env.VITE_SUPABASE_ANON_KEY
if (!supabaseUrl || !supabaseAnonKey) {
  throw new Error(
    '缺少 Supabase 环境变量，请在 .env 中配置 VITE_SUPABASE_URL 和 VITE_SUPABASE_ANON_KEY'
  )
}
export const supabase = createClient(supabaseUrl, supabaseAnonKey, {
  auth: {
    persistSession: true,
    autoRefreshToken: true,
    detectSessionInUrl: true
  }
})
```