Having no personal experience with channels so far, the only thing I
can suggest is the following small improvement:

for each channelId in list {
  try { send } catch { remove the affected channel from the list }
}

See also channel wish list above...

Best regards,

Remigius.

On Feb 3, 6:59 pm, Thomas Wiradikusuma <[email protected]> wrote:
> Hi guys,
>
> I learn that (at least in Java) ChannelService.sendMessage will throw
> exception when sending to non-existent channel (i.e. channelId no
> longer valid).
>
> Now assume this situation:
> Every time someone opens your website, clientId token is generated and
> kept in a list in the server, so you can push them messages.
> Some of them may close the website shortly after visiting. But of
> course our server app doesn't know how to update the list, so it will
> have some dead channelIds.
>
> I can handle that by:
>
> for each channelId in list {
>   try { send } catch (ignore it)
>
> }
>
> But isn't that slow? Is there any better way to handle this situation?

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