[Twisted-Python] I see, remote_method can also return a deferred. Perhaps we could document that?

[David Kao]

Or we could just use Brian's example.

David Kao



On Thu, Sep 22, 2011 at 9:19 PM, David Kao <a.libran at gmail.com> wrote:
> I almost gave up choosing twisted until I found this explanation
>
> http://twistedmatrix.com/pipermail/twisted-python/2004-April/007517.html
>
> which basically says a remote_method can return a deferred. In this
> case, the PB server won't return the result of the Deferred back to
> the client until the server-side callback fires. The result of the
> remote_method is then returned to the client, which then triggers
> client side's deferred callback.
>
> So, I thought one of the following would be helpful:
>
> 1) An example showing remote_method returning a deferred
>
> and/or
>
> 2) A section named "Server side remote_* methods can be async by
> returning deferreds" could be added as a 7th item in
>
> http://twistedmatrix.com/documents/current/core/howto/pb-usage.html
>
> .
>
> I spent some quality 30+ hours carefully reading 90% of the
>
> http://twistedmatrix.com/documents/current/core/howto/index.html
>
> and I do not remember picking this subtlety up. (Or you can point me
> the right place in doc.) (great doc btw.)
>
> Should I submit an improvement ticket for this? I could also make the
> server side example using Echoer, remote_echo, and deferToThread just
> so that whoever fixes the ticket can just copy and paste.
>
> David Kao
>