in reply to Invoking API

Single quotes do not interpolate variables. Double quotes should work. See Quote Like Operators.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In Section Seekers of Perl Wisdom