This API is used to Get Contact List of particular Client

Please check example usage of Vision Helpdesk API

Operation : get_clients
Module : client

$postfields["vis_module"] = "client";
// This is the module under which you wish to perform operation

$postfields["vis_operation"] = "get_clients";
// This is the operation field

$postfields["vis_filter"] = "parent_id=44";
// This is id of parent client

Below is example API URL to Get Contact List of particular Client

http://visiononlinedemo.com/support/api/index.php?
vis_txtusername=admin
&vis_txtuserpass=21232f297a57a5a743894a0e4a801fc3
&vis_module=client
&vis_operation=get_clients
&vis_filter=parent_id=44

OR use "access token" to Get Contact List of particular Client

http://visiononlinedemo.com/support/api/index.php?
vis_txttoken=WXprMk1UY3dZV1V6WWpZeU16RmpOelF3TVdReE5UWTJOVGMyTm1VeU4yUT0=
&vis_module=client
&vis_operation=get_clients
&vis_filter=parent_id=44