The following are the the core integration elements for Angular with Rails:

• http://jsonapi.org/
• https://github.com/jakubrohleder/angular-jsonapi

Alternatives to the Rails / Angular approach:

• http://yahooeng.tumblr.com/post/134800436351/elide-simplify-your-crud

The back-end could be provides through GraphQL with Falcor supporting.

• https://facebook.github.io/react/blog/2015/02/20/introducing-relay-and-graphql.html
• https://www.youtube.com/watch?v=ByNs9TG30E8
• https://facebook.github.io/react/blog/2015/05/01/graphql-introduction.html
• http://hueypetersen.com/posts/2015/10/26/querying-graphql-with-falcor/