How to implement Interfaces

[jcmcclorey]

I'm attempting to implement an interface, but the only result I am able to get is Type UserAuth not found. I have tried everything I can think of but no luck. Are Interfaces broken or am I just doing something wrong? See my code below...

Interface

use GraphQL\Type\Definition\StringType;
use GraphQL\Type\Definition\Type;
use Rebing\GraphQL\Support\Facades\GraphQL;
use Rebing\GraphQL\Support\InterfaceType;

class UserAuthInterface extends InterfaceType
{
    protected $attributes = [
        'name' => 'UserAuth',
    ];

    public function resolveType($root)
    {
        if ($root['type'] == 'User') {
            return GraphQL::type($root['type']);
        }
    }

    public function fields(): array
    {
        return [
            'username' => [
                'type' => Type::string(),
                'description' => 'A test field',
            ],
            'password' => [
                'type' => Type::string(),
                'description' => 'A test field',
            ],
        ];
    }
}

Type

use GraphQL\Type\Definition\Type;
use Rebing\GraphQL\Support\Facades\GraphQL;
use Rebing\GraphQL\Support\Type as GraphQLType;

class UserType extends GraphQLType
{
    protected $attributes = [
        'name' => 'User',
        'description' => 'A type'
    ];

    public function fields(): array
    {
        $interface = GraphQL::type('UserAuth');

        return array_merge($interface->getFields(), [
            'successful' => [
                'type' => Type::nonNull(Type::boolean()),
                'name' => 'successful',
            ],
            'user_id' => [
                'type' => Type::nonNull(Type::int()),
                'name' => 'user_id',
            ],
        ]);
    }

    public function interfaces(): array
    {
        return [
            GraphQL::type('UserAuth'),
        ];
    }
}

I have made sure to register both the interface and the type in the 'types' array of the configuration file.

I do also have lazyload_types set to false right now if that makes any difference.

[jcmcclorey]

I changed lazyload_types to true and it works now.

Is there a reason Interfaces don't work for lazyload_types = false and is that the intended behavior?

[mfn]

I wonder if this is related to #828 ; can you try lazyload_types=false with the patch (only a couple lines) of that PR?

[jcmcclorey]

@mfn that seems to be working now