# Type Directives
These directives can generally be applied to type definitions in the schema.
This is not limited to
typebut also includesinput,enum,union,interfaceandscalartypes.
# TypeManipulator
The Nuwave\Lighthouse\Support\Contracts\TypeManipulator (opens new window)
interface can be used to manipulate the AST from a type definition node.
# TypeMiddleware
The Nuwave\Lighthouse\Support\Contracts\TypeMiddleware (opens new window)
interface allows access to an AST node as it is converted to an executable type.
# TypeResolver
The Nuwave\Lighthouse\Support\Contracts\TypeResolver (opens new window)
interface can be used for custom conversion from AST values to an executable type.
# Type Extension Directives
These directives can generally be applied to type extensions (opens new window) in the schema.
# TypeExtensionManipulator
The Nuwave\Lighthouse\Support\Contracts\TypeExtensionManipulator (opens new window)
interface can be used to manipulate the AST from a type extension node.