First, create a class that extends the new validator
// app/Http/GraphQL/Validators/MyCustomValidator.php
use Nuwave\Lighthouse\Support\Validator\Validator;
class MyCustomValidator extends Validator
{
public function rules()
{
// return array of rules...
}
}Add validate directive to your schema:
extend type Mutation {
createFoo(input: FooInput!): FooPayload
@validate(validator: "App\\Http\\GraphQL\\Validators\\MyCustomValidator")
}