When you moved the helper, you moved your render outside of the callback,
so it's called immediately rather than when the actions are done. Also, you
cannot return values from the delay back to where the helper was called,
because the helper returns immediately, the delay happens later. You can
make your helper take a callback and call that from the last step of the
delay.
my ($self, $params, $cb) = @_;
...
sub {
my $delay = shift;
my $req2 = ...
$self->$cb($req2);
});
# here is where you can return something immediately from the helper,
before the delay runs
Then you would call it like this:
$self->a_proxy( { ... }, sub {
my ($self, $req2) = @_;
$self->render(json => $req2);
});
On Fri, Jan 22, 2016 at 8:52 AM, Pavel Serikov <[email protected]>
wrote:
> I need to send one request, then wait 10 seconds, then send another
> request, then render result.
> Assume that I need to use Mojo::IOLoop for that (please correct me if
> there are other options).
>
> If I do it inside route everything works fine:
> get '/a' => sub {
> my $self = shift;
> my $req1 = $self->ua->post(...)->res;
> Mojo::IOLoop->timer(10 => sub {
> my $req2 = $self->ua->get('...'.$req1)->res;
> $self->render(json => $req2);
> });
> };
>
> But if move this code to helper it doesn't work, Mojo render result
> immediately.
> helper a_proxy => sub {
> my ($self, $params) = @_;
> my $delay = Mojo::IOLoop->delay(
> sub {
> my $delay = shift;
> my $req1 = $self->ua->post('...' => $delay->begin);
> },
> sub {
> my ($delay, $tx) = @_;
> $delay->data({id => $tx->res});
> Mojo::IOLoop->timer(10 => $delay->begin);
> },
> sub {
> my $delay = shift;
> my $req2 = $self->ua->get('...'.$delay->data->{id})->res;
> return $req2;
> }
> );
> };
>
> ..
>
> get '/a' => sub {
> my $self = shift;
> my $r = $self->a_proxy( { ... } );
> $self->render(json => $r);
> };
>
> What am I doing wrong?
>
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