curl -X POST "https://api.dingtalk.io/topapi/user/listid" \
-H 'Content-Type:application/x-www-form-urlencoded;charset=utf-8' \
-d 'access_token=03987655-598f-4f7a-8fc3-aaf257c47c27' \
-d 'dept_id=100'

DingTalkClient client = new DefaultDingTalkClient("https://api.dingtalk.io/topapi/user/listid");
OapiUserListidRequest req = new OapiUserListidRequest();
req.setDeptId(100L);
OapiUserListidResponse rsp = client.execute(req, access_token);
System.out.println(rsp.getBody());

import dingtalk.api

req=dingtalk.api.OapiUserListidRequest("https://api.dingtalk.io/topapi/user/listid")

req.dept_id=100
try:
  resp= req.getResponse(access_token)
  print(resp)
except Exception,e:
  print(e)

include "TopSdk.php";
date_default_timezone_set('Asia/Shanghai');

$c = new DingTalkClient(DingTalkConstant::$CALL_TYPE_OAPI, DingTalkConstant::$METHOD_POST , DingTalkConstant::$FORMAT_JSON);
$req = new OapiUserListidRequest;
$req->setDeptId("100");
$resp = $c->execute($req, $access_token, "https://api.dingtalk.io/topapi/user/listid");

IDingTalkClient client = new DefaultDingTalkClient("https://api.dingtalk.io/topapi/user/listid");
OapiUserListidRequest req = new OapiUserListidRequest();
req.DeptId = 100L;
OapiUserListidResponse rsp = client.Execute(req, access_token);
Console.WriteLine(rsp.Body);

{
  "errcode": 0,
  "errmsg":"ok",
  "result": {
    "userid_list": [
      "usxxx",
      "manager4xxx",
      "10203029011xxxx",
      "usexxx"
    ]
  },
  "request_id": "3naksldjh0dk"
}