一键
One Tap 插件允许用户通过一次轻触使用 Google 的 One Tap API 登录。该插件提供了一种将 One Tap 集成到你的应用中的简单方式,为你处理客户端和服务器端的逻辑。
🌐 The One Tap plugin allows users to log in with a single tap using Google's One Tap API. The plugin provides a simple way to integrate One Tap into your application, handling the client-side and server-side logic for you.
安装
🌐 Installation
添加服务器插件
🌐 Add the Server Plugin
将 One Tap 插件添加到你的身份验证配置中:
🌐 Add the One Tap plugin to your auth configuration:
import { betterAuth } from "better-auth";
import { oneTap } from "better-auth/plugins";
export const auth = betterAuth({
plugins: [
oneTap(), // Add the One Tap server plugin
]
});添加客户端插件
🌐 Add the Client Plugin
添加客户端插件,并指定用户登录后或需要额外验证(如双因素认证)时应重定向到的位置。
🌐 Add the client plugin and specify where the user should be redirected after sign-in or if additional verification (like 2FA) is needed.
import { createAuthClient } from "better-auth/client";
import { oneTapClient } from "better-auth/client/plugins";
export const authClient = createAuthClient({
plugins: [
oneTapClient({
clientId: "YOUR_CLIENT_ID",
// Optional client configuration:
autoSelect: false,
cancelOnTapOutside: true,
context: "signin",
additionalOptions: {
// Any extra options for the Google initialize method
},
// Configure prompt behavior and exponential backoff:
promptOptions: {
baseDelay: 1000, // Base delay in ms (default: 1000)
maxAttempts: 5 // Maximum number of attempts before triggering onPromptNotification (default: 5)
}
})
]
});用法
🌐 Usage
要显示 One Tap 弹出窗口,只需在你的身份验证客户端上调用 oneTap 方法即可:
🌐 To display the One Tap popup, simply call the oneTap method on your auth client:
await authClient.oneTap();自定义重定向行为
🌐 Customizing Redirect Behavior
默认情况下,登录成功后,插件会将用户直接重定向到 /。你可以按如下方式自定义此行为:
🌐 By default, after a successful login the plugin will hard redirect the user to /. You can customize this behavior as follows:
避免硬重定向
🌐 Avoiding a Hard Redirect
传递带有 onSuccess 回调的 fetchOptions,以在不重新加载页面的情况下处理登录响应:
🌐 Pass fetchOptions with an onSuccess callback to handle the login response without a page reload:
await authClient.oneTap({
fetchOptions: {
onSuccess: () => {
// For example, use a router to navigate without a full reload:
router.push("/dashboard");
}
}
});指定自定义回调 URL
🌐 Specifying a Custom Callback URL
要在登录后执行跳转到不同页面的硬重定向,请使用 callbackURL 选项:
🌐 To perform a hard redirect to a different page after login, use the callbackURL option:
await authClient.oneTap({
callbackURL: "/dashboard"
});使用指数退避处理提示取消
🌐 Handling Prompt Dismissals with Exponential Backoff
如果用户关闭或跳过提示,插件将根据你配置的 promptOptions 使用指数回退方式重新尝试显示一键提示。
🌐 If the user dismisses or skips the prompt, the plugin will retry showing the One Tap prompt using exponential backoff based on your configured promptOptions.
如果在达到最大尝试次数后仍未成功登录,你可以使用 onPromptNotification 回调来接收通知 - 这样你就可以呈现一个替代的用户界面(例如传统的 Google 登录按钮),以便用户可以手动重新启动该过程:
🌐 If the maximum number of attempts is reached without a successful sign-in, you can use the onPromptNotification callback to be notified—allowing you to render an alternative UI (e.g., a traditional Google Sign-In button) so users can restart the process manually:
await authClient.oneTap({
onPromptNotification: (notification) => {
console.warn("Prompt was dismissed or skipped. Consider displaying an alternative sign-in option.", notification);
// Render your alternative UI here
}
});客户选项
🌐 Client Options
clientId:你的 Google One Tap API 客户端 ID。autoSelect:如果用户已经登录,则自动选择账户。默认值为 false。cancelOnTapOutside:当用户点击弹窗外部时取消 One Tap 弹窗。要使用此选项,请禁用promptOptions.fedCM。默认值为 true。uxMode:用于 Google One Tap 流程的模式。可以是“popup”或“redirect”。默认值是“popup”。context:One Tap API 应该使用的上下文。可以是 "signin"、"signup" 或 "use"。默认值是 "signin"。additionalOptions:根据Google身份服务文档传递给Google初始化方法的额外选项。promptOptions:提示行为和指数回退的配置:baseDelay:重试的基础延迟时间,单位为毫秒。默认值为1000。maxAttempts:在调用onPromptNotification回调之前,最大的提示尝试次数。默认值为 5。fedCM:是否启用联邦凭证管理 (FedCM)支持。默认值为 true。
服务器选项
🌐 Server Options
disableSignUp:禁用注册选项,仅允许现有用户登录。默认值为 false。clientId:可选,如果你的社交提供商配置中未提供客户端 ID,可在此处传入。
授权的 JavaScript 来源
🌐 Authorized JavaScript origins
请确保已在 Google Cloud Console 中为你的客户端 ID 配置了授权的 JavaScript 来源(例如:http://localhost:3000,https://example.com)。这是使用 Google One Tap API 的必需步骤,如果来源未正确设置,该 API 将无法正常工作。
🌐 Ensure you have configured the Authorized JavaScript origins (e.g., http://localhost:3000, https://example.com) for your Client ID in the Google Cloud Console. This is a required step for the Google One Tap API, and it will not function correctly unless your origins are correctly set.