Allow WPGraphQL for WooCommerce resolveNode callbacks to work with WPGraphQL v1.15+

update-wp-graphql-woocommerce-resolveNode.php

add_filter( 'graphql_pre_resolve_field', function( $nil, $source, $args, \WPGraphQL\AppContext $context, \GraphQL\Type\Definition\ResolveInfo $info, $type_name, $field_key, $field, $field_resolver ) {

	if ( 'RootQueryToShippingMethodConnection' === $type_name ) {
		if ( 'nodes' === $field_key ) {

			if ( ! empty( $source['nodes'] ) && is_array( $source['nodes'] ) ) {
				$nodes = [];
				foreach ( $source['nodes'] as $node ) {
					$nodes[] = \WPGraphQL\WooCommerce\Data\Factory\Factory::resolve_shipping_method( $node );
				}
			}

			if ( ! empty( $nodes ) ) {
				return $nodes;
			}
		}
		if ( 'node' === $field_key && ! empty( $source['node'] ) ) {
			return \WPGraphQL\WooCommerce\Data\Factory\Factory::resolve_shipping_method_connection( $source['node'], $args, $context, $info );
		}
	}

	if ( 'OrderToLineItemConnection' === $type_name ) {
		if ( 'nodes' === $field_key ) {

			if ( ! empty( $source['nodes'] ) && is_array( $source['nodes'] ) ) {
				$nodes = [];
				foreach ( $source['nodes'] as $node ) {
					$nodes[] = \WPGraphQL\WooCommerce\Data\Factory\Factory::resolve_order_item( $node );
				}
			}

			if ( ! empty( $nodes ) ) {
				return $nodes;
			}
		}
		if ( 'node' === $field_key && ! empty( $source['node'] ) ) {
			return \WPGraphQL\WooCommerce\Data\Factory\Factory::resolve_order_item_connection( $source['node'], $args, $context, $info );
		}
	}

	return $nil;

}, 10, 9 );