Flarum\Api\Serializer\PostSerializer::getDefaultAttributes PHP Method

    protected function getDefaultAttributes($post)
    {
        $attributes = parent::getDefaultAttributes($post);
        unset($attributes['content']);
        $gate = $this->gate->forUser($this->actor);
        $canEdit = $gate->allows('edit', $post);
        if ($post instanceof CommentPost) {
            $attributes['contentHtml'] = $post->content_html;
            if ($canEdit) {
                $attributes['content'] = $post->content;
            }
            if ($gate->allows('viewIps', $post)) {
                $attributes['ipAddress'] = $post->ip_address;
            }
        } else {
            $attributes['content'] = $post->content;
        }
        if ($post->edit_time) {
            $attributes['editTime'] = $this->formatDate($post->edit_time);
        }
        if ($post->hide_time) {
            $attributes['isHidden'] = true;
            $attributes['hideTime'] = $this->formatDate($post->hide_time);
        }
        $attributes += ['canEdit' => $canEdit, 'canDelete' => $gate->allows('delete', $post)];
        return $attributes;
    }