Open Source Elixir Web Development Software

Plug is a specification and set of utilities for building composable modules in Elixir web applications. It defines a standard connection interface, allowing developers to create “plugs” that act as middleware for handling requests and responses. Examples include parsing parameters, managing sessions, logging, or authentication, all of which can be plugged into a pipeline. Plug serves as the foundation for the Phoenix framework, which builds on it to deliver a full-featured web stack. The library supports both synchronous and streaming responses, making it adaptable to various web scenarios. Its modularity and composability promote clean, reusable code while remaining lightweight enough for microservices and APIs outside of Phoenix.

Ueberauth is a two-phase authentication framework that provides a clear API, allowing for many strategies to be created and shared within the community. It is heavily inspired by Omniauth. You could call it a port but it is significantly different in operation, but almost the same concept. Huge hat tip to Intridea. Ueberauth provides only the initial authentication challenge, (initial OAuth flow, collecting the information from a login form, etc). It does not authenticate each request, that's up to your application. You could issue a token or put the result into a session for the needs of your application. Libraries like Guardian can help you with that aspect of authentication. Strategies implement the two phases and then may allow the request to flow through to your downstream plugs. Implementing the request and callback phases is optional depending on the strategies requirements. If a strategy does not redirect, the request will be decorated with Ueberauth information.