I need some wisdom regarding how to handle a problem. I have code that sends and receives responses using JSON::RPC::Client. We changed our HTTPServer to nginx and now my program does not work.

I get the message:

malformed JSON string, neither array, object, number, string or atom, at character offset 0 (before "Content-Type: applic...") at /root/perl5/perlbrew/perls/perl-5.16.3/lib/site_perl/5.16.3/JSON/RPC/Client.pm line 186.

My application call looks like: 

    my $callobj = {
        method  => "$cmd",
        version => '2.0',
        id      => '3232',
    };

    my $res = $client->call( $uri, $callobj, );

    if ($res->is_success) {

       print "Success\n";
    } else {

       print "Error\n";
    }

[download]

I do see in wireshark the response and it is properly decoded by wireshark. My program simply crashes at:

my $res = $client->call( $uri, $callobj, );

[download]

and I have no way of "seeing" what the response is. If I use "curl" to send the same request using command line, that works. What can I do to troubleshoot/bypass/fix this issue? Thanks

In reply to JSON RPC by dlal66

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