curl --location --request GET 'https://open.ispkey.com/whitelist/add?appKey=xxx&ip=12.12.12.12' \
--header 'User-Agent: Apifox/1.0.0 (https://apifox.com)'

import requests

url = "https://open.ispkey.com/whitelist/add?appKey=xxx&ip=12.12.12.12"

payload={}
headers = {
   'User-Agent': 'Apifox/1.0.0 (https://apifox.com)'
}

response = requests.request("GET", url, headers=headers, data=payload)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
   CURLOPT_URL => 'https://open.ispkey.com/whitelist/add?appKey=xxx&ip=12.12.12.12',
   CURLOPT_RETURNTRANSFER => true,
   CURLOPT_ENCODING => '',
   CURLOPT_MAXREDIRS => 10,
   CURLOPT_TIMEOUT => 0,
   CURLOPT_FOLLOWLOCATION => true,
   CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
   CURLOPT_CUSTOMREQUEST => 'GET',
   CURLOPT_HTTPHEADER => array(
      'User-Agent: Apifox/1.0.0 (https://apifox.com)'
   ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

var myHeaders = new Headers();
myHeaders.append("User-Agent", "Apifox/1.0.0 (https://apifox.com)");

var requestOptions = {
   method: 'GET',
   headers: myHeaders,
   redirect: 'follow'
};

fetch("https://open.ispkey.com/whitelist/add?appKey=xxx&ip=12.12.12.12", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

package main

import (
   "fmt"
   "net/http"
   "io/ioutil"
)

func main() {

   url := "https://open.ispkey.com/whitelist/add?appKey=xxx&ip=12.12.12.12"
   method := "GET"

   client := &http.Client {
   }
   req, err := http.NewRequest(method, url, nil)

   if err != nil {
      fmt.Println(err)
      return
   }
   req.Header.Add("User-Agent", "Apifox/1.0.0 (https://apifox.com)")

   res, err := client.Do(req)
   if err != nil {
      fmt.Println(err)
      return
   }
   defer res.Body.Close()

   body, err := ioutil.ReadAll(res.Body)
   if err != nil {
      fmt.Println(err)
      return
   }
   fmt.Println(string(body))
}

OkHttpClient client = new OkHttpClient().newBuilder()
   .build();
MediaType mediaType = MediaType.parse("text/plain");
RequestBody body = RequestBody.create(mediaType, "");
Request request = new Request.Builder()
   .url("https://open.ispkey.com/whitelist/add?appKey=xxx&ip=12.12.12.12")
   .method("GET", body)
   .addHeader("User-Agent", "Apifox/1.0.0 (https://apifox.com)")
   .build();
Response response = client.newCall(request).execute();