Provides the directives available for SDL schema definitions.

By default, the only directive provided is @deprecated, which supports a reason argument (of GraphQL type String). This can be used to mark a field

To add additional schema directives, define your own prototype schema, e.g.:

defmodule MyAppWeb.SchemaPrototype do
  use Absinthe.Schema.Prototype

  directive :feature do
    arg :name, non_null(:string)
    on [:interface]
    # Define `expand`, etc.
  end

  # More directives...
end

Then, set it as the prototype for your schema:

defmodule MyAppWeb.Schema do
  use Absinthe.Schema

  @prototype_schema MyAppWeb.SchemaPrototype

  # Use `import_sdl`, etc...
end