GraphHopper using R

Please I have some challenges I’d need help with.
I have some co-ordinates on a road network/map and I would like to plot the routes of all coordinates starting from a point through way-points and returning back to that point.

How can I get this done. I make use of R and would appreciate solution codes for this, either through GraphHopper API or any solutions

There are clients in R:

Thanks @karussell but how can I plot the routes of multiple coordinates when I just have the coordinates with out their stops id.