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First we’ll create the directory for the query resolver by creating the following directory: /server/local/todo/classes/webapi/resolver/query

Now let’s create the query resolver class, items.php in the directory we just created:

Code Block

Code Block

language	php

<?php

namespace local_todo\webapi\resolver\query;

use core\webapi\execution_context;
use core\webapi\query_resolver;
use local_todo\entity\item;

class items extends query_resolver {

    /**
     * @inheritDoc
     * @throws \coding_exception
     */
    public static function resolve(array $args, execution_context $ec) {
        global $USER;

        $items = item::repository()
            ->where('user_id', $USER->id)
            ->order_by('id')
            ->get();

        return ['items' => $items];
    }
}

In this file we’ve defined the query resolve and we’re using the ORM of local_todo to return a list of items.

Now we create the type resolver directory /server/local/todo/classes/webapi/resolver/type/ and the type resolver for item item.php in the directory:

Code Block

<?php

namespace local_todo\webapi\resolver\type;

use core\webapi\execution_context;
use core\webapi\type_resolver;

class item extends type_resolver {
    /**
     * @param string $field - The field being requested 
     * @param $source - In the case, source will be our `item` entity class as it's what's returned from the query resolver
     * @param array $args
     * @param execution_context $ec
     * @return mixed|void
     */
    public static function resolve(string $field, $source, array $args, execution_context $ec) {
        return $source->$field;
    }
}

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