Using Azure Active Directory's B2C identity platform and oso's open-source authorization library for Flask, we'll show how to add user authentication and access control to a simple Flask app.

When building support for Rust applications, we needed a system that could give us dynamic access to types, attributes and methods at runtime. Since Rust doesn't have native support for such things, we had to build our own version of a runtime reflection system.

In this post, we'll show how to incrementally build complex authorization policies with oso, using GitHub's authorization model as an example.