Suggestions are now supported as well

src/Module/Api/Mastodon/Suggestions.php

@@ -0,0 +1,56 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2021, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Module\Api\Mastodon;
+
+use Friendica\Core\System;
+use Friendica\DI;
+use Friendica\Model\Contact;
+use Friendica\Module\BaseApi;
+
+/**
+ * @see https://docs.joinmastodon.org/methods/accounts/suggestions/
+ */
+class Suggestions extends BaseApi
+{
+	/**
+	 * @param array $parameters
+	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 */
+	public static function rawContent(array $parameters = [])
+	{
+		self::login();
+		$uid = self::getCurrentUserID();
+
+		// Maximum number of results to return. Defaults to 40.
+		$limit = (int)!isset($_REQUEST['limit']) ? 40 : $_REQUEST['limit'];
+
+		$suggestions = Contact\Relation::getSuggestions($uid, 0, $limit);
+
+		$accounts = [];
+
+		foreach ($suggestions as $suggestion) {
+			$accounts[] = DI::mstdnAccount()->createFromContactId($suggestion['id'], $uid);
+		}
+
+		System::jsonExit($accounts);
+	}
+}