What is Oso?
noun /ˈō-sō/ — a batteries-included framework for building authorization in your application
Oso is a library.
Oso is a library. It's embedded in your application, it uses your data models, and Oso policies live alongside your application code. Oso supports Python, Node.js, Go, Java, Ruby, and Rust.
Oso comes with built-in authorization primitives.
You write policies to express who can do what in your app using Polar, Oso's declarative policy language. When writing policies, you have direct access to all your app data, models, classes and methods. Use any of the built-in primitives for patterns like roles, relationships and hierarchies. Or write custom rules for anything you need.