To install Plack::Middleware::Validate_Google_IAP_JWT, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Plack::Middleware::Validate_Google_IAP_JWT
CPAN shell
perl -MCPAN -e shell install Plack::Middleware::Validate_Google_IAP_JWT
For more information on module installation, please visit the detailed CPAN module installation guide.