How can I use google or-tools in ruby for my rails app?

I need to solve tsp problem in my rails application. I want to use google or-tools for solving this problem of tsp. The documentation1 tells about using or-tools in c++, c#, java and python. The code for solving tsp using or-tools in python is working fine. But I need to use or-tools in ruby for my rails app. How can I do this?