why is the hash value missing in the below code-CodePudding

I wanted to do a POST request to jira and jfrog. while I try to get the values of the hash within the loop am not able to get the value the second time. I try to read the variable(API token instead of password) from env, if not set it will pass the username and password.

my %urls = (
    'jira' => {
        'url' => 'https://jira.com:123/rest/api/2/issue/', 
        'token' => 'JIRA_TOKEN'
    },
    'jfrog' => {
        'url' => 'https://jfrog.com/artifactory/api/storage/path/to/artifacts',
        'token' => 'JFROG_TOKEN'
    }
);

my $jira_ua = Mojo::UserAgent->new();
for my $outer_elem ( keys %urls ) {
    for my $inner_elem ( keys %{$urls{$outer_elem}} ) {
        # print $inner_elem;
        if ( !$ENV{$urls{$outer_elem}{'token'}} ) {
            print "Enter username : \n";
            my $username = <STDIN>;
            chomp($username);
            my $passwd = read_password("Enter Password: ");
            $url = Mojo::URL->new($urls{$outer_elem}->{'url'})
            ->userinfo($username.':'.$passwd);
        }
        else {
            $jira_ua->on( start => sub { 
                my( $ua, $tx ) = @_;
                $tx->req->headers->authorization(
                    "Bearer $ENV{$urls{$outer_elem}->{'token'}}"
                );
            });
        }
        print $outer_elem . "\n";
        $tx = my $ua->get($urls{$outer_elem}->{'url'}); # <--- line 170
        my $res = $tx->res->code;
        print $res;
    }
}

I get below output

D:\scripts>perl emtf.pl
jira
Can't call method "get" on an undefined value at emtf.pl line 170.

CodePudding user response：

The error you're getting is:

Can't call method "get" on an undefined value

And the line of code that generates the error is:

$tx = my $ua->get($urls{$outer_elem}->{'url'});

The error means that $ua contains undef when you try to call the get() method on it. That's because you create a new variable called $ua on this line of code - that's what my does. And because you don't assign a value to this new variable, it will contain undef.

I'm not sure why the my is there. And I'm not sure I really understand how your code is supposed to work. There's another variable called $ua that is defined but not used in the anonymous subroutine that's defined a few lines above (my( $ua, $tx ) = @_;) but that variable doesn't exist outside that subroutine.

Did you, perhaps mean the line to use $jira_ua instead:

$tx = $jira_ua->get($urls{$outer_elem}->{'url'});