Overview
Casbin is a powerful authorization library for Dart that enables fine-grained access control using flexible models such as ACL (Access Control List), RBAC (Role-Based Access Control), and ABAC (Attribute-Based Access Control). It allows developers to define and enforce security policies programmatically, making it ideal for applications requiring dynamic and scalable permission systems. The library supports various data sources and integrates seamlessly into Flutter apps. With its extensible architecture and strong community backing, Casbin simplifies implementing complex access rules in both backend and frontend environments.
Use cases
- Implementing role-based access control in enterprise apps
- Enforcing attribute-based policies for user data
- Managing permissions across multiple organizations
- Securing API endpoints with dynamic rules
- Supporting multi-tenancy with custom policies
Key features
- Supports ACL, RBAC, and ABAC models
- Flexible policy definition with configuration files
- Extensible middleware and adapters
- Lightweight and easy to integrate
- Cross-platform compatibility
Suitable for
- Developers building secure Flutter applications
- Teams needing customizable access control
- Applications with complex permission hierarchies
- Backend services requiring policy enforcement
- Projects using dynamic or externalized security rules
Considerations
- Requires understanding of access control models
- Policy management may need additional tooling
- Limited documentation compared to mature libraries
- Not designed for authentication, only authorization
- May require setup for file or database storage