Can someone please guide me how to add a sub-resource in Glue API? I have a resource with `

U048WDEP3R7

Can someone please guide me how to add a sub-resource in Glue API? I have a resource with [glue.de](http://glue.de).spryker.local/pickup and I would like to add a[glue.de](http://glue.de).spryker.local/pickup/add endpoint as well. Is it possible to do it in the same module? Following is the glimpse of my ResourceRoutePlugin.php file

...
class AddaxPickupPointsResourceRoutePlugin extends AbstractPlugin implements ResourceRoutePluginInterface
{
    public function configure(ResourceRouteCollectionInterface $resourceRouteCollection)
    : ResourceRouteCollectionInterface {

        // to get all pickup points
        $resourceRouteCollection->addGet('get', true);

        return $resourceRouteCollection;
    }
...

Alberto Reyer

Sub Resources are possible through implementing \Spryker\Glue\GlueApplicationExtension\Dependency\Plugin\ResourceWithParentPluginInterface on the resource route plugin.

But from a REST/JSON:API perspective there are a few issues here:

1. resources should be plural (pickups instead of pickup)

Alberto Reyer

2. Adding a resource of a type should be done via HTTP verbs: POST /pickups/ instead of POST /pickups/add

U048WDEP3R7

Thank you @UL6DGRULR

U048WDEP3R7

@UL6DGRULR Does that mean I have to:

..implements ResourceRoutePluginInterface, ResourceWithParentPluginInterface

Alberto Reyer

use Spryker\Glue\CartCodesRestApi\CartCodesRestApiConfig;
use Spryker\Glue\GlueApplicationExtension\Dependency\Plugin\ResourceRoutePluginInterface;

class AddaxPickupPointsResourceRoutePlugin extends AbstractPlugin implements ResourceRoutePluginInterface, \Spryker\Glue\GlueApplicationExtension\Dependency\Plugin\ResourceWithParentPluginInterface
{
    /**
     * {@inheritDoc}
     *
     * @api
     *
     * @return string
     */
    public function getParentResourceType(): string
    {
        return YourPickupPointsResourceClass::RESROUCE_PICKUP_POINT_OR_HOWEVER_YOU_NAMED_IT;
    }
}

U048WDEP3R7

@UL6DGRULR Thanks again. I am a beginner so please excuse me if my questions are too simple. AddaxPickupPointsResourceRoutePlugin is my main class which has the basic configurations for route collections. Do I have to add another class in the 'Plugin' directory that implements ResourceRoutePluginInterface, ResourceWithParentPluginInterface and eventually add it to GlueApplicationDependencyProvider::getResourceRoutePlugins() ?

Alberto Reyer

Yes, for the main resource you add one resource class, for each subresource you add another class that implements the ResourceWithParentPluginInterface to hint spryker that it should prepend the parent resource to your subresource.

/carts/{id} -> Main Resource (CartsResourceRoutePlugin)
/carts/{id}/items -> Subresource (CartItemsResourceRoutePlugin that implements ResourceWithParentPluginInterface)

You can also have a look on the implementations of the ResourceWithParentPluginInterface to get a better impression how they work

U048WDEP3R7

@UL6DGRULR Thank you again for the explanation. Just one more question. Is it possible to add a subresesource like/carts/items instead of /carts/{id}/items ?

Alberto Reyer

No, that's against the specification of JSON:API

U048WDEP3R7

@UL6DGRULR Thank you for the explaination.