Hi. I'm looking for a simple way to parse JSON objects out of a stream.

I am calling an HTTP service that returns a stream of json objects over time.

To read it, i registered a simple callback handler in LWP::UserAgent

$ua->add_handler( response_data => sub {
                my($response, $ua, $h, $data) = @_;
                return "true" if $data =~ /^\s*$/;
                print "Callback triggered\n";
                print "data: .${data}.\n";

                my $result = eval { $json->decode( $data ) };
                if ($@){
                        print "error: $@\n";
                        return "true";
                };
                print Dumper $result;
                return "true";
        } );
[download]

As expected, i sometimes get partial json objects in $data.

My first idea would be to so something like m/{.*?}/ against $data. Or rather some more elaborate version that deals with balanced parens and quoted strings.

My question is, is there an easier / simpler / more straightforward way to deal with something like this that I am missing?

-- Sec

EDIT: to clarify a bit.

The problem is that in the callback $data may just be

{ "foo": "bar" }
{ "foo" : "q
[download]

which means I have to grab one object, handle it, keep the rest and wait for more data.

I know how to write code for that "the long way". I was asking if there is something clever or an existing module that can help with this.

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