api: Added support for updating multiple device table fields in one call #4954 (#5033)

doc/API/API-Docs.md

@@ -678,8 +678,8 @@ Route: /api/v0/devices/:hostname
 
 Input (JSON):
 
-  - field: The column name within the database
-  - data: The data to update the column with
+  - field: The column name within the database (can be an array of fields)
+  - data: The data to update the column with (can be an array of data))
 
 Examples:
 ```curl
@@ -697,6 +697,21 @@ Output:
 ]
 ```
 
+```curl
+curl -X PATCH -d '{"field": ["notes","purpose"], "data": ["This server should be kept online", "For serving web traffic"]}' -H 'X-Auth-Token: YOURAPITOKENHERE' https://librenms.org/api/v0/devices/localhost
+```
+
+Output:
+
+```text
+[
+    {
+        "status": "ok",
+        "message": "Device fields have been updated"
+    }
+]
+```
+
 ### <a name="api-route-get_device_groups">Function `get_device_groups`</a> [`top`](#top)
 
 List the device groups that a device is matched on.