Casbin
Casbin is an open-source authorization library that provides a unified interface for enforcing access control policies in applications. It supports various access control models like ACL, RBAC, ABAC, and can be integrated with multiple programming languages and frameworks. It uses a policy language (PERM) to define rules and a model configuration to specify how policies are enforced.
Developers should use Casbin when they need a flexible and scalable authorization system for applications requiring fine-grained access control, such as enterprise software, microservices, or multi-tenant systems. It simplifies implementing complex authorization logic by separating policy management from application code, making it easier to maintain and audit security rules.