Phoenix authentication with phx.gen.auth, session management, and authorization patterns
Phoenix Channels — real-time pub/sub communication with topics, sockets, and broadcasts
Phoenix controllers — actions, params, responses, plugs, and error handling
Phoenix deployment — releases, environment config, Docker, Heroku, and production setup
Phoenix Ecto — schemas, changesets, queries, migrations, repositories, and context modules
Phoenix LiveView — real-time server-rendered interactive views with mount, handle_event, handle_info, and HEEx templates
Phoenix LiveView function components and live components — attrs, slots, HEEx templates, and stateful components
Phoenix web framework and LiveView reference — routing, controllers, views, channels, and real-time LiveView
Phoenix router — scopes, pipelines, resources, verified routes, and helpers
Phoenix testing — controllers, LiveView, channels, and context tests with ExUnit and ConnCase