diff --git a/api/dao/category_dao.php b/api/dao/category_dao.php
index 49e9bea4..895b141c 100644
--- a/api/dao/category_dao.php
+++ b/api/dao/category_dao.php
@@ -1,5 +1,27 @@
 <?php
 
 function get_category($hesk_settings, $id = NULL) {
-    return NULL;
+    $sql = "SELECT * FROM `" . hesk_dbEscape($hesk_settings['db_pfix']) . "categories` ";
+    if ($id != NULL) {
+        $sql .= "WHERE `id` = ".intval($id);
+    }
+
+    $response = hesk_dbQuery($sql);
+
+    if (hesk_dbNumRows($response) == 0) {
+        return NULL;
+    }
+
+    $results = [];
+    while ($row = hesk_dbFetchAssoc($response)) {
+        $row['id'] = intval($row['id']);
+        $row['cat_order'] = intval($row['cat_order']);
+        $row['autoassign'] = intval($row['autoassign']);
+        $row['type'] = intval($row['type']);
+        $row['priority'] = intval($row['priority']);
+        $row['manager'] = intval($row['manager']);
+        $results[] = $row;
+    }
+
+    return $id == NULL ? $results : $results[0];
 }
\ No newline at end of file