To install R-restfulr, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install R-restfulr
To see what files were installed by R-restfulr, run:
port contents R-restfulr
To later upgrade R-restfulr, run:
sudo port selfupdate && sudo port upgrade R-restfulr
Reporting an issue on MacPorts Trac
The MacPorts Project uses a system called Trac to file tickets to report bugs and enhancement requests.
Though anyone may search Trac for tickets, you must have a GitHub account in order to login to Trac to create tickets.