guardian
A token-based authentication library for Elixir applications, supporting JWT and custom tokens.
What is guardian?
Guardian is an authentication library for Elixir applications built around token-based authentication, primarily using JSON Web Tokens (JWT) by default. It provides a flexible, functional system for securing web endpoints, channels, sockets, and other protocols, integrating seamlessly with Plug and Phoenix while remaining decoupled for broader use cases.
Elixir developers building web applications or APIs that require secure authentication, particularly those using the Phoenix framework or Plug-based systems. It is also suitable for developers implementing custom authentication schemes for non-web protocols like TCP/UDP.
Developers choose Guardian for its extensible, token-based architecture that supports multiple token types and configurations within a single application, along with advanced features like permission encoding and key rotation. Its pluggable design allows customization without imposing rigid structures, making it adaptable to complex authentication flows.
Overview
Elixir Authentication
Use Cases
Best For
- Securing Phoenix web endpoints and channels with token-based authentication.
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