> Discover all available pages from the documentation index: https://mastra.zisheng.pro/zh-TW/llms.txt # Composite Auth `CompositeAuth` 類別可讓你將多個驗證 Provider 合併為單一驗證處理常式。它會依序嘗試每個 Provider,直到其中一個成功為止。 ## 使用情境 - 同時支援 API 金鑰與 OAuth 權杖 - 在驗證 Provider 之間移轉,且不中斷現有用戶端 - 允許多個身分 Provider(例如網頁使用 Clerk、整合使用 API 金鑰) - 逐步推出新的驗證方法 ## 安裝 CompositeAuth 已包含在 `@mastra/core` 中,不需要其他套件。 ```typescript import { CompositeAuth } from '@mastra/core/server' ``` ## 使用範例 結合 SimpleAuth(用於 API 金鑰)與 Clerk(用於使用者工作階段): ```typescript import { Mastra } from '@mastra/core' import { CompositeAuth, SimpleAuth } from '@mastra/core/server' import { MastraAuthClerk } from '@mastra/auth-clerk' // API key users type ApiKeyUser = { id: string name: string type: 'api-key' } const apiKeyAuth = new SimpleAuth({ tokens: { 'sk-integration-key-123': { id: 'integration-1', name: 'CI/CD Pipeline', type: 'api-key', }, }, }) // Clerk users (from web app) const clerkAuth = new MastraAuthClerk({ publishableKey: process.env.CLERK_PUBLISHABLE_KEY, secretKey: process.env.CLERK_SECRET_KEY, jwksUri: process.env.CLERK_JWKS_URI, }) export const mastra = new Mastra({ server: { auth: new CompositeAuth([apiKeyAuth, clerkAuth]), }, }) ``` ## 運作方式 收到請求時,CompositeAuth 會: 1. 從 `Authorization` 標頭擷取權杖 2. 依序嘗試每個 Provider 的 `authenticateToken()` 方法 3. 傳回第一個成功 Provider 的使用者 4. 如果所有 Provider 都失敗,則傳回 `null`(401 Unauthorized) 進行授權時,它會呼叫每個 Provider 的 `authorizeUser()` 方法,直到其中一個傳回 `true`。 ```typescript // Pseudocode of CompositeAuth behavior async authenticateToken(token, request) { for (const provider of this.providers) { const user = await provider.authenticateToken(token, request); if (user) return user; // First match wins } return null; // All providers failed } ``` ## Provider 順序 由於 Provider 的順序會影響效能,請將最常用的驗證方法放在最前面: ```typescript // If most requests use Clerk, put it first new CompositeAuth([ clerkAuth, // Checked first (most common) apiKeyAuth, // Checked second (less common) ]) // If most requests use API keys, put it first new CompositeAuth([ apiKeyAuth, // Checked first (most common) clerkAuth, // Checked second (less common) ]) ``` ## 多個 OAuth Provider 支援來自不同身分 Provider 的使用者: ```typescript import { CompositeAuth } from '@mastra/core/server' import { MastraAuthClerk } from '@mastra/auth-clerk' import { MastraAuthAuth0 } from '@mastra/auth-auth0' const clerkAuth = new MastraAuthClerk({ publishableKey: process.env.CLERK_PUBLISHABLE_KEY, secretKey: process.env.CLERK_SECRET_KEY, jwksUri: process.env.CLERK_JWKS_URI, }) const auth0Auth = new MastraAuthAuth0({ domain: process.env.AUTH0_DOMAIN, audience: process.env.AUTH0_AUDIENCE, }) export const mastra = new Mastra({ server: { auth: new CompositeAuth([clerkAuth, auth0Auth]), }, }) ``` ## 移轉範例 從 JWT 移轉至 Clerk,同時維持向下相容性: ```typescript import { CompositeAuth } from '@mastra/core/server' import { MastraJwtAuth } from '@mastra/auth' import { MastraAuthClerk } from '@mastra/auth-clerk' // Legacy JWT auth (existing clients) const legacyAuth = new MastraJwtAuth({ secret: process.env.JWT_SECRET, }) // New Clerk auth (new clients) const clerkAuth = new MastraAuthClerk({ publishableKey: process.env.CLERK_PUBLISHABLE_KEY, secretKey: process.env.CLERK_SECRET_KEY, jwksUri: process.env.CLERK_JWKS_URI, }) // Support both during migration export const mastra = new Mastra({ server: { auth: new CompositeAuth([ clerkAuth, // New auth method (preferred) legacyAuth, // Legacy support ]), }, }) ``` ## 搭配自訂 Provider 結合內建 Provider 與自訂實作: ```typescript import { CompositeAuth, SimpleAuth } from '@mastra/core/server' import { MyCustomAuth } from './my-custom-auth' const apiKeyAuth = new SimpleAuth({ tokens: { 'sk-key-123': { id: 'user-1', name: 'API User' }, }, }) const customAuth = new MyCustomAuth({ apiUrl: process.env.CUSTOM_AUTH_URL, }) export const mastra = new Mastra({ server: { auth: new CompositeAuth([apiKeyAuth, customAuth]), }, }) ``` ## 錯誤處理 CompositeAuth 會靜默攔截個別 Provider 的錯誤,並繼續嘗試下一個。這可避免單一 Provider 發生錯誤時阻擋驗證: ```typescript // If clerkAuth throws an error, apiKeyAuth still gets tried new CompositeAuth([clerkAuth, apiKeyAuth]) ``` 若要偵錯驗證問題,請在自訂 Provider 中加入記錄,或檢查各個 Provider 的設定。 ## 限制 - 所有 Provider 共用來自 `Authorization` 標頭的相同權杖 - 各 Provider 的使用者型別可能不同(如有需要,請使用可辨識聯集) - 沒有內建方式可識別是哪個 Provider 驗證了請求 ### 處理不同的使用者型別 當 Provider 傳回不同的使用者型別時,請使用可辨識聯集: ```typescript type ApiKeyUser = { type: 'api-key' id: string name: string } type ClerkUser = { type: 'clerk' sub: string email: string } type User = ApiKeyUser | ClerkUser // In your application code function handleUser(user: User) { if (user.type === 'api-key') { console.log('API key user:', user.name) } else { console.log('Clerk user:', user.email) } } ```