Re: [Ring] Sending failes or takes hours even if my contacts are online

[AmarOk]

Long answer to describe a little bit how works push notifications.

Push notifications on a device works with the push provider of the 
device vendor (for example, APN for iOS). A notification pass through 
this provider and is connected to your phone. Because it uses 
authentification, only nodes which have some infos can send 
notifications to your phone (like a certificate).

In short, if you want to use notifications, you will ask a node to 
listen the DHT for your phone. When a node receives a new value it will 
send a wake up notification through a push server (which have infos to 
send notifications). This push server will use the API of the push 
provider which will send the notification to your phone (and your phone 
will wake up and get the value from the DHT)

So, technically, the push provider is a central point.

I wrote a this on the wiki: 
https://github.com/savoirfairelinux/opendht/wiki/Push-notifications-support

Have a nice day,


On 01/16/2018 02:21 PM, Maxim Cournoyer wrote:
> > > ----- Original Message -----
> > > > From: address@hidden
> > > > To: "Maxim Cournoyer" <address@hidden>
> > > > Cc: address@hidden
> > > > Sent: Tuesday, January 16, 2018 1:26:05 PM
> > > > Subject: Re: [Ring] Sending failes or takes hours even if my contacts are online
> > > > Hi Maxim,
> > > >
> > > > you mean that my Android contact's should check their power settings, right?
> > > Yes, if your contacts are using Ring on Android, they would have to make sure
> > > their Ring client is not "power optimized" by Android.
> > > This isn't very user friendly; we are working on push notifications that should
> > > make things easier in this regard.
> > Btw. do push notifications work in a decentralised network - without connecting
> > to servers running in the background?
> Short answer: no. The push service frameworks available on mainstream mobile 
> platforms (Android, iOS) are centralized by nature: a connection is at all 
> times maintained between them and the push server, AFAIK.
>
> Maxim