FCM:消息到多个注册 ID 限制? [英] FCM: Message to multiple registration ids limit?

问题描述

根据我发现的这句话:

• registration_ids – 类型字符串数组 –(可选)[消息的收件人]多个注册令牌，最少 1 个，最多 1000 个.

• registration_ids – Type String array – (Optional) [Recipients of a message] Multiple registration tokens, min 1 max 1000.

这是我可以向其发送单条消息的设备令牌的实际限制吗?发给主题的消息也有同样的限制吗?

Is this the actual limit of device tokens I can send a single message to? And do messages to topics have the same limit?

例如:

{
  "to": [reg_token_01, reg_token_02, ..., reg_token_1000],
  "priority": "high",
  "data": {
    "title": "Hi Peeps!",
    "message": "This is a special message for only for you...  More details are available..."
  }
}

一如既往，感谢您的信息和指导！

As always, thanks for the info and direction!

推荐答案

更新:v1似乎不再支持registration_ids.强烈建议改用主题.

Update: For v1, it seems that registration_ids is no longer supported. It is strongly suggested that topics be used instead.

鉴于 FCM 是基于 GCM 核心的，使用 registration_ids 参数时您可以发送的最大注册令牌数为 1000.我很确定您确实在官方中看到了文档.

Seeing as FCM is based from the GCM core, the maximum number of registration tokens you can send to when using the registration_ids parameter is 1000. I'm pretty sure you did see that in the official documentation.

因此，如果您仍打算使用 registration_ids 参数但需要将其发送到 1000 多个，您可以按照@Eran 在他的回答中所说的 这里:

So if ever you still intend to use the registration_ids parameter but you need to send it to more than 1000, you can follow what was @Eran said in his answer here:

如果您需要向 1000 多个注册 ID 发送相同的消息，您只需将发送过程分成 1000 个注册 ID 的组.每个组将在单独的请求中发送到 GCM 服务器.

If you need to send the same message to more than 1000 Registration IDs, you simply split the sending process into groups of 1000 Registration IDs. Each group would be sent in a separate request to GCM server.

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但是，当涉及到主题时，没有限制.曾经有，但几年前就被废弃了.我之前的答案已经提到过:

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However, when it comes to topics, there is no limit. There used to be, but it was scrapped years ago. I have mentioned it my previous answers before:

• 答案1:

不.根据他们 2015 年 12 月的 博客:

Nope. As per their blog last December 2015:

我们现在很高兴地宣布，我们允许为您的应用提供无限的免费主题.这意味着应用开发者可以在每个主题中放置无限数量的设备并创建无限数量的主题.

We’re now happy to announce that we’re allowing unlimited free topics for your app. This means app developers can place an unlimited number of devices within each topic and create an unlimited number of topics.

• 答案2:

不.看到 FCM 以 GCM 为核心，任何应用的 Topics 数量都没有限制.曾经有 100 万个限制，但已被删除.你可以参考这个Google 开发者博客.

Nope. Seeing that FCM has GCM as its core, there is no limit in the number of Topics for any app. There used to be a 1 million limit, but it was removed. You can refer to this Google Developers Blog for that.

此外，根据此 post，在 FCM 中创建主题时，它似乎需要一天的时间才能可用.

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