custom Attribute Based Access Control | Angular & Rails

I am implementing Attribute Based Access Control in angular typescript application with rails server.

I've searched for different solutions like followings but could not manage to implement cause of unclear solutions.

1. Custom Roles Based Access Control RBAC in ASP NET
2. simple attribute based access control with spring

please help guide me how can I implement custom access control system in efficient way without using GEM or Package.

any suggestion and tips are welcome.

via LukyBoy -KU