what are the options for programming an open vswitch (ovs) in C/C++?

I want configure/program an open vswitch. I am aware that I can use ovs-vsctl like commands on command line interface / bash. Also I know that ovs has interface for high level controllers like pox and ryu.

I was wondering if there are any other ways to configure/program an ovs. Maybe API's for languages like C/C++ ?