Phoenix (Phoenix v1.6.11)

This is the documentation for the Phoenix project.

By default, Phoenix applications depend on the following packages across these categories.

General

Ecto - a language integrated query and database wrapper
ExUnit - Elixir's built-in test framework
Gettext - Internationalization and localization through gettext
Phoenix - the Phoenix web framework (these docs)
Phoenix PubSub - a distributed pub/sub system with presence support
Phoenix HTML - conveniences for working with HTML in Phoenix
Phoenix View - a set of functions for building Phoenix.View and working with template languages such as Elixir's own EEx
Phoenix LiveView - rich, real-time user experiences with server-rendered HTML
Phoenix LiveDashboard - real-time performance monitoring and debugging tools for Phoenix developers
Plug - a specification and conveniences for composable modules in between web applications
Swoosh - a library for composing, delivering and testing emails, also used by mix phx.gen.auth
Telemetry Metrics - common interface for defining metrics based on Telemetry events

To get started, see our overview guides.

json_library(): Returns the configured JSON encoding library for Phoenix.
plug_init_mode(): Returns the :plug_init_mode that controls when plugs are initialized.

Returns the configured JSON encoding library for Phoenix.

To customize the JSON library, including the following in your config/config.exs:

config :phoenix, :json_library, Jason

Returns the :plug_init_mode that controls when plugs are initialized.

We recommend to set it to :runtime in development for compilation time improvements. It must be :compile in production (the default).

This option is passed as the :init_mode to Plug.Builder.compile/3.