NAME

Dancer2::Core::Error - Class representing fatal errors

VERSION

version 0.400000

SYNOPSIS

    # taken from send_file:
    use Dancer2::Core::Error;

    my $error = Dancer2::Core::Error->new(
        status    => 404,
        message => "No such file: `$path'"
    );

    Dancer2::Core::Response->set($error->render);

DESCRIPTION

With Dancer2::Core::Error you can throw reasonable-looking errors to the user instead of crashing the application and filling up the logs.

This is usually used in debugging environments, and it's what Dancer2 uses as well under debugging to catch errors and show them on screen.

ATTRIBUTES

title

The title of the error page.

This is only an attribute getter, you'll have to set it at "new".

status

The status that caused the error.

This is only an attribute getter, you'll have to set it at "new".

METHODS

my $error=new Dancer2::Core::Error(status => 404, message => "No such file: `$path'");

Create a new Dancer2::Core::Error object. For available arguments see ATTRIBUTES.

throw($response)

Populates the content of the response with the error's information. If $response is not given, acts on the app attribute's response.

backtrace

Show the surrounding lines of context at the line where the error was thrown.

This method tries to find out where the error appeared according to the actual error message (using the "message" attribute) and tries to parse it (supporting the regular/default Perl warning or error pattern and the Devel::SimpleTrace output) and then returns an error-highlighted "message".