在rapns上，我如何知道未注册的GCM设备的令牌，以便我可以从我的数据库中删除它们？ [英] On rapns, how can I know the token for unregistered GCM devices so I can remove them from my database?

问题描述

我使用rapns来提供GCM和APNS支持。对于APNS，我知道哪些未注册的设备必须通过on.apns_feedback（rapns.rb）删除：

  on.apns_feedback do |反馈| 
 device = AppleDevice.find_by_token（feedback.device_token）
 device.destroy if device 
 end 
  

但是对于GCM，我无法找到一种方法来知道什么设备是未注册的，所以我可以从我的数据库中删除它。

我试过与反射API，但我没有得到on.notification_failed和on.error每当引发一个Rapns :: DeliveryError异常，并且这些方法似乎并没有让我知道未注册的令牌的方式。

我尝试捕捉Rapns :: DeliveryError，但它似乎不起作用。

  messenger = PushMessenger :: Gcm.new 
 GoogleDevice.find_in_batches：batch_size => 1000个|设备| 
 tokens = devices.map（& token）
 begin 
 messenger.deliver（app，token，payload，nil，true）
 rescue Rapns :: DeliveryError =>错误
 GoogleDevice.destroy_all＃只是看看它的工程
结束
结束
  

PushMessenger：

 模块PushMessenger 
 class Gcm 
 def deliver（app，token，payload， collapse_key = nil，delay_while_idle = nil，expiry = 1.day.to_i）
 tokens = * tokens 
n = Rapns :: Gcm :: Notification.new 
 n.app = app 
 n.registration_ids =令牌
 n.collapse_key = collapse_key 
 n.delay_while_idle = delay_while_idle 
 n.expiry =过期
 n.data =有效负载
n.save！ 
 end 
 end 
 end 
  

如何知道令牌对于这些未注册的设备，所以我可以从我的数据库中删除它们？

解决方案

我使用rapns几乎完全相同，所以在这里我的两美分：首先，对于Android设备，您不需要device_token来停用/移除设备（在GCM device_token == registration_id上）。您可以使用Reflection API从 on.notification_failed 回调中获得registration_id。

最后，哪个版本的rapns你正在用吗？现在最后一个版本（3.4.1）的 on.notification_failed 有一个错误，但是3.3.2版本的工作很好，你可以执行如下操作：

  on.notification_failed do | notification | 
 device = Device.find_by_token（notification.registration_ids.first）
 device.destroy if device 
 end 
  

希望有所帮助。

I am using rapns to provide GCM and APNS support. For APNS, I know what unregistered device I must delete via on.apns_feedback (rapns.rb):

on.apns_feedback do |feedback|
    device = AppleDevice.find_by_token(feedback.device_token)
    device.destroy if device
end

but for GCM, I can't find a way to know what device is unregistered so I can delete it from my database.

I tried with the reflection API, but I'm not getting on.notification_failed and on.error called whenever a Rapns::DeliveryError exception is raised and those methods doesn't seem to give me a way to know the unregistered tokens.

I tried catching the Rapns::DeliveryError, but it doesn't seem to work.

messenger = PushMessenger::Gcm.new
GoogleDevice.find_in_batches :batch_size => 1000 do |devices|
  tokens = devices.map(&:token)
  begin
    messenger.deliver(app, tokens, payload, nil, true)
  rescue Rapns::DeliveryError => error
    GoogleDevice.destroy_all # Just to see it works
  end
end

PushMessenger:

module PushMessenger
    class Gcm
        def deliver(app, tokens, payload, collapse_key=nil, delay_while_idle=nil, expiry=1.day.to_i)
            tokens = *tokens
            n = Rapns::Gcm::Notification.new
            n.app = app
            n.registration_ids = tokens
            n.collapse_key = collapse_key
            n.delay_while_idle = delay_while_idle
            n.expiry = expiry
            n.data = payload
            n.save!
        end
    end
end

How can I know the token for these unregistered devices so I can remove them from my database?

解决方案

I'm using rapns to do pretty much the same, so here my two cents:

First, for Android devices you don't need the device_token to deactivate/remove the device (On GCM device_token == registration_id). You can get that registration_id from the on.notification_failed callback with the Reflection API.

Last, which version of rapns are you using? Right now the last version (3.4.1) has a bug with on.notification_failed, but version 3.3.2 works just fine and you'll be able to do something like:

on.notification_failed do |notification|
  device = Device.find_by_token(notification.registration_ids.first)
  device.destroy if device
end

Hope that helps.

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