[aerogear-dev] Mozilla API Alignment for SimplePush

[Sebastien Blanc]

This sounds good !
With the Aerodoc Web Client we were indeed running into some problems when
refreshing/restarting. We ended up deleting the localstorage entries at
each startup/refresh.
Seb



On Wed, Aug 28, 2013 at 4:12 PM, Kris Borchers <kris at redhat.com> wrote:

> As I work more and more toward aligning with the API spec laid out by
> Mozilla for SimplePush, I find myself needing to make a major change to the
> way we have implemented channel registrations. Basically what I have found
> is that our storage and reuse of channels between app restart/refresh,
> though meant to be an improvement to performance, is causing more issues
> than it's solving.
>
> The Proposal
> I would like to only persist the user agent id (UAID) in storage and only
> keep the channel registrations in memory while the app is running. Each
> time the app starts up, the workflow would be:
>
>
>    - First Start
>       1. Client Hello => Server
>       2. Server Ack => Client
>       3. Client 1 or more channel registrations => Server
>       4. Server stores channel and sends pushEndpoint => Client
>       5. Client registers endpont => App Server or UP Server
>       6. Push messages abound
>    - Restart / Refresh
>       1. Client Hello => Server
>       2. Server recognizes UAID and since no channels were included in
>       Hello, all existing channels are removed as per the spec and sends Ack =>
>       Client
>       3. Client 1 or more channel registrations => Server
>       4. Server stores channel and sends pushEndpoint => Client
>       5. Client registers endpont => App Server or UP Server
>       6. Push messages abound
>
>
> The only possible downside I see here is there will be slightly more
> chatter over the network since the registrations will happen every time the
> app loads. There should be no performance decrease and may see a
> performance boost since we will be eliminating a number of synchronous
> calls into localStorage. The main benefit is that this will allow us to
> almost completely synchronize our API with Mozilla's which would then allow
> for immediate use of one of our apps as a web app and Firefox OS app with
> NO modifications.
>
> Any thoughts?
>
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