GDS\Gateway\RESTv1::fetchByKeyPart PHP Method

    protected function fetchByKeyPart(array $arr_key_parts, $str_setter)
    {
        // Build the query
        $obj_request = (object) ['keys' => []];
        $this->applyTransaction($obj_request);
        // Add keys
        foreach ($arr_key_parts as $str_key_part) {
            $obj_element = (object) ['kind' => $this->obj_schema->getKind()];
            if ('setId' === $str_setter) {
                $obj_element->id = $str_key_part;
            } elseif ('setName' === $str_setter) {
                $obj_element->name = $str_key_part;
            }
            $obj_key = (object) ['path' => [$obj_element]];
            $this->applyPartition($obj_key);
            $obj_request->keys[] = $obj_key;
        }
        // Run
        $this->executePostRequest('lookup', $obj_request);
        // Extract results
        $arr_mapped_results = [];
        if (isset($this->obj_last_response->found) && is_array($this->obj_last_response->found)) {
            $arr_mapped_results = $this->createMapper()->mapFromResults($this->obj_last_response->found);
        }
        $this->obj_schema = null;
        // Consume Schema
        return $arr_mapped_results;
    }