bobtfish at bobtfish
Dec 7, 2011, 1:39 AM
Post #2 of 2
(236 views)
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On 7 Dec 2011, at 07:32, Denis Spichkin wrote:
> chunked response and Catalyst ??
Totally possible.
> Is there any way of generating chunked response inside Catalyst and
> any its Views.
>
The default way that the views / RenderView extension works is to
render an entire page and give that to the user, as that's simplest.
> I have inside side that create chunked response , created gradually
> output for example such as
>
You can setup your headers, then call ->render on your view to render
a chunk, and call $c->write to write chunks out in a loop - this will
work just fine :)
Doing a multipart streaming response to javascript code (using
DUI.Stream or whatever on the client side) would work something like
this:
my $boundary = MIME::Base64::encode(join("", map chr(rand(256)),
1..$size*3), "");
$boundary =~ s/[\W]/X/g; # ensure alnum only
$c->res->header("Content-Type" => 'multipart/mixed; boundary="' .
$boundary . '"');
$c->res->body('');
$c->write("--" . $boundary . "\n");
while (my $thing = $iter->next) {
$c->stash(item => $thing);
my $payload = $c->view('JSON')->render;
$c->write("Content-Type: application/json\n\n$payload\n--" .
$boundary. "\n" );
}
>
> I have inside side that create chunked response , created gradually
> output for example such as
> http://www.websitepulse.com/help/testreq.php?host=www.ya.ru&location=9&type=1&singletestpage=ping-test&pass=&ttref=http%3A%2F%2Fwww.websitepulse.com%2F&__=1323068838832
>
I note that the example you've given here _is not_ doing a chunked
response. 'Chunked' implies RFC 2405/2406 MIME chunking, whereas the
above serves a plain HTML page and just flushes it to the browser in
parts (much simpler, but both less powerful).
More analogous code would be something like:
for (1..10) {
$c->write('response part ' . $_);
sleep 1;
}
> I need create Catalyst Controller that after getting client request
> will generate request to my inside resource and get chunked response
> and while getting chunked response will generate through any Catalyst
> View chunked response to first client request.
>
I'm not quite sure what you're after here, or if what I've suggested
above solves it - please feel free to ask for more details :)
Cheers
t0m
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