App Check 使用入门(Unity 应用)
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
本页介绍了如何使用以下默认的提供程序在 Unity 应用中启用 App Check:Android 上的 Play Integrity,以及 Apple 平台上的 Device Check 或 App Attest。启用 App Check 有助于确保只有您的应用可以访问项目的 Firebase 资源。请查看此功能的概览。
1. 设置您的 Firebase 项目
将 Firebase 添加到您的 Unity 项目(如果尚未添加)。
在 Firebase 控制台的项目设置 > App Check 部分中注册您的应用,以便将 App Check 与 Play Integrity、Device Check 或 App Attest 提供程序搭配使用。
您通常需要注册项目的所有应用,因为在您为 Firebase 产品启用强制执行后,只有注册的应用才能访问产品的后端资源。
如需详细了解如何向每个提供程序注册您的应用,请参阅 Android 和 iOS 专用文档。
可选:在应用注册设置中,为提供方颁发的 App Check 令牌设置自定义存留时间 (TTL)。您可以将 TTL 设置为 30 分钟到 7 天之间的任何值。更改此值时,请注意权衡以下几个方面:
- 安全性:较短的 TTL 可以提供更强的安全性,因为它可以缩短攻击者可能滥用已泄露或者已被拦截的令牌的时长。
- 性能:较短的 TTL 意味着您的应用将更频繁地执行证明操作。由于每次执行应用证明过程都会增加网络请求的延迟时间,因此短 TTL 可能会影响应用的性能。
- 配额和费用:较短的 TTL 和频繁的重新证明会更快地耗尽您的配额,而对于付费服务,费用可能更高。请参阅配额和限制。
对于大多数应用而言,默认的 TTL 比较合理。请注意,App Check 库会在大约一半 TTL 时长时刷新令牌。
2. 将 App Check 库添加到您的应用
按照 App Check 的设置说明操作,将 App Check 库添加到您的一组依赖项中。
3. 初始化 App Check
将以下初始化代码添加到您的应用,使其在您使用任何 Firebase 服务(以及创建任何 Firebase 应用)之前运行。
Android
为 Firebase.AppCheck
添加 using 声明:
using Firebase.AppCheck
使用 Play Integrity 提供程序初始化 App Check 库:
FirebaseAppCheck.SetAppCheckProviderFactory(
PlayIntegrityProviderFactory.Instance);
iOS+
为 Firebase.AppCheck
添加 using 声明:
using Firebase.AppCheck
使用 Device Check 或 App Attest 提供程序初始化 App Check 库:
FirebaseAppCheck.SetAppCheckProviderFactory(
DeviceCheckProviderFactory.Instance);
后续步骤
将 App Check 库安装到您的应用中之后,开始将更新后的应用分发给用户。
更新后的客户端应用会开始将 App Check 令牌随其发出的每个请求一起发送到 Firebase;不过,您在 Firebase 控制台的 App Check 部分中启用强制执行之前,Firebase 产品并不会要求令牌必须有效。
监控指标并启用强制执行
不过,在启用强制执行之前,您应该确保这样做不会干扰现有的合法用户。另一方面,如果您发现自己的应用资源被非法使用,建议您尽快启用强制执行。
为帮助您做出相关决策,建议您查看自己使用的服务的 App Check 指标:
启用 App Check 强制执行
在了解 App Check 对用户有何影响并为后续操作做好准备之后,您便可以启用 App Check 强制执行:
在调试环境中使用 App Check
为应用启用 App Check 后,如果您希望在 App Check 通常不会归类为有效提供程序的环境(例如桌面环境、开发期间的模拟器)或持续集成 (CI) 环境中运行您的应用,可以创建应用的调试 build,该 build 使用 App Check 调试提供程序,而不是真正的证明提供程序。
请参阅将 App Check 与调试提供程序搭配使用(Unity 应用)。
如未另行说明,那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可,并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情,请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC):2025-08-04。
[null,null,["最后更新时间 (UTC):2025-08-04。"],[],[],null,["\u003cbr /\u003e\n\nThis page shows you how to enable App Check in a Unity app, using the\ndefault providers: Play Integrity on Android, and Device Check or App Attest on\nApple platforms. When you enable App Check, you help ensure that\nonly your app can access your project's Firebase resources. See an\n[Overview](/docs/app-check) of this feature.\n\n1. Set up your Firebase project\n\n1. [Add Firebase to your Unity project](/docs/unity/setup) if you haven't\n already done so.\n\n2. Register your apps to use App Check with the Play Integrity, Device Check,\n or App Attest providers in the\n [**Project Settings \\\u003e App Check**](https://console.firebase.google.com/project/_/appcheck)\n section of the Firebase console.\n\n You usually need to register all of your project's apps, because once you\n enable enforcement for a Firebase product, only registered apps will be able\n to access the product's backend resources.\n\n For detailed instructions on how to register with each provider, refer to\n the Android and iOS specific documentation.\n3. **Optional**: In the app registration settings, set a custom time-to-live\n (TTL) for App Check tokens issued by the provider. You can set the TTL\n to any value between 30 minutes and 7 days. When changing this value, be\n aware of the following tradeoffs:\n\n - Security: Shorter TTLs provide stronger security, because it reduces the window in which a leaked or intercepted token can be abused by an attacker.\n - Performance: Shorter TTLs mean your app will perform attestation more frequently. Because the app attestation process adds latency to network requests every time it's performed, a short TTL can impact the performance of your app.\n - Quota and cost: Shorter TTLs and frequent re-attestation deplete your quota faster, and for paid services, potentially cost more. See [Quotas \\& limits](/docs/app-check#quotas_limits).\n\n The default TTL\n is reasonable for most apps. Note that the App Check library refreshes\n tokens at approximately half the TTL duration.\n\n2. Add the App Check library to your app\n\nInclude the App Check library in your set of dependencies, following\n[the setup instructions](/docs/unity/setup#add-sdks) for App Check.\n\n3. Initialize App Check\n\nAdd the following initialization code to your app so that it runs before you\nuse any Firebase services including any creation of Firebase Apps. \n\nAndroid\n\n1. Add the using declaration for `Firebase.AppCheck`:\n\n ```c#\n using Firebase.AppCheck\n ```\n2. Initialize the App Check library with the Play Integrity provider:\n\n FirebaseAppCheck.SetAppCheckProviderFactory(\n PlayIntegrityProviderFactory.Instance);\n\niOS+\n\n1. Add the using declaration for `Firebase.AppCheck`:\n\n ```c#\n using Firebase.AppCheck\n ```\n2. Initialize the App Check library with the Device Check or App Attest\n provider:\n\n FirebaseAppCheck.SetAppCheckProviderFactory(\n DeviceCheckProviderFactory.Instance);\n\nNext steps\n\nOnce the App Check library is installed in your app, start distributing the\nupdated app to your users.\n\nThe updated client app will begin sending App Check tokens along with every\nrequest it makes to Firebase, but Firebase products will not require the tokens\nto be valid until you enable enforcement in the App Check section of the\nFirebase console.\n\nMonitor metrics and enable enforcement\n\nBefore you enable enforcement, however, you should make sure that doing so won't\ndisrupt your existing legitimate users. On the other hand, if you're seeing\nsuspicious use of your app resources, you might want to enable enforcement\nsooner.\n\nTo help make this decision, you can look at App Check metrics for the\nservices you use:\n\n- [Monitor App Check request metrics](/docs/app-check/monitor-metrics) for Realtime Database, Cloud Firestore, and Cloud Storage.\n- [Monitor App Check request metrics for Cloud Functions](/docs/app-check/monitor-functions-metrics).\n\nEnable App Check enforcement\n\nWhen you understand how App Check will affect your users and you're ready to\nproceed, you can enable App Check enforcement:\n\n- [Enable App Check enforcement](/docs/app-check/enable-enforcement) for Realtime Database, Cloud Firestore, and Cloud Storage.\n- [Enable App Check enforcement for Cloud Functions](/docs/app-check/cloud-functions).\n\nUse App Check in debug environments\n\nIf, after you have registered your app for App Check, you want to run your\napp in an environment that App Check would normally not classify as valid,\nsuch as on desktop, an emulator during development, or from a continuous\nintegration (CI) environment, you can create a debug build of your app that\nuses the App Check debug provider instead of a real attestation provider.\n\nSee [Use App Check with the debug provider in Unity apps](/docs/app-check/unity/debug-provider)."]]