What is Casbin?
Casbin is a powerful open-source library tailored for authorization, facilitating the use of various access control models like Access Control Lists (ACL), Role-Based Access Control (RBAC), and Attribute-Based Access Control (ABAC). This library supports a multitude of programming languages such as Golang, Java, C/C++, Node.js, JavaScript, PHP, Laravel, Python, .NET (C#), Delphi, Rust, Ruby, Swift (Objective-C), Lua (OpenResty), Dart (Flutter), and Elixir, allowing developers to benefit from a consistent API experience across multiple platforms. By employing the PERM metamodel, Casbin empowers developers to create access control models through configuration files, simplifying the process of modifying or upgrading authorization systems with ease. Furthermore, it offers a range of policy storage options that are compatible with various databases, including MySQL, PostgreSQL, Oracle, MongoDB, Redis, and AWS S3, catering to a wide array of storage preferences. In addition, Casbin features a role manager that adeptly handles RBAC role hierarchies and supports filtered policy management, thereby improving access enforcement efficiency. Consequently, developers find it straightforward to customize Casbin to meet their unique project needs while upholding strong security standards. This flexibility and ease of integration further solidify Casbin's reputation as a go-to solution for managing authorization effectively across diverse applications.