GCM（现为FCM）是否有任何限制？ [英] Is GCM (now FCM) free for any limit?

问题描述

我想知道Firebase云消息传递对于无限制用户是免费还是免费的？ 除< AL 的回答 。
从定价页面Faq ：

哪些产品付款？ Firebase的付费基础设施产品包括实时数据库，
Firebase存储，托管和测试实验室。除了测试实验室之外，我们为这些产品的所有
提供免费级别。

Firebase还有许多免费产品：Analytics，App Indexing，
身份验证，动态链接，云消息传递，通知，
邀请，崩溃报告和远程配置。您可以在所有计划中使用无限
的金额，包括我们的免费Spark计划。

所以，它是免费的。限制在文档中没有提及，但Firebase实时数据库存在限制，如常见问题解答中所述：

同时对应用程序数据库的连接数量进行了严格的限制。这些限制是为了保护Firebase和我们的用户免受滥用。

免费计划限制为100，不能提高。 Flame and Blaze
计划的初始限制是10,000个并发数据库
连接。这是为了防止滥用，并可以通过联系
提供24小时的Firebase支持。

这个限制与用户总数不一样您的应用程序
，因为您的用户不一次全部连接。我们鼓励您
监控您的高峰同步数据库连接和升级，如果
需要。

我们正在努力删除最初的10,000同时$

因此，如果您使用Firebase数据库来保存您的用户数据并希望使用存储在Firebase数据库中的FCM注册令牌将大量推送通知发送到您的用户设备，您可能会在免费的Spark计划中达到上限，但是达到10k限制真的很难。

I would like to know if Firebase Cloud Messaging is free or not for unlimited users?

解决方案

In addition to the answer from AL.
From the Pricing page Faqs:

Which products are paid? Which are free?

Firebase's paid infrastructure products are the Realtime Database, Firebase Storage, Hosting, and Test Lab. We offer a free tier for all of these products except Test Lab.

Firebase also has many free products: Analytics, App Indexing, Authentication, Dynamic Links, Cloud Messaging, Notifications, Invites, Crash Reporting, &, Remote Config. You can use an unlimited amount of these in all plans, including our free Spark Plan.

So, it's free. The limit is not mentioned anywhere in the docs, however there's a limit on the Firebase realtime database, as mentioned in the FAQs:

Firebase imposes hard limits on the number of connections to your app's database at the same time. These limits are in place to protect both Firebase and our users from abuse.

The free plan limit is 100, and cannot be raised. The Flame and Blaze Plans have an initial limit of 10,000 simultaneous database connections. This is to prevent abuse and can be raised by contacting Firebase support with 24 hours notice.

This limit isn't the same as the total number of users of your app, because your users don't all connect at once. We encourage you to monitor your peak simultaneous database connections and upgrade if needed.

We're working hard to remove the initial 10,000 simultaneous connection cap on the Flame and Blaze plans.

So if you are using the Firebase Database to save your User's data and want to send a lot of Push Notifications to your user's devices using the FCM registration token stored in the Firebase Database, you might hit the limit in the free Spark plan, however it's really tough to hit the 10k limit.

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