维易淘客接口是用GET方式调用的，直接用GET调用即可，以下用PHP为例：

使用curl调用维易淘客接口高佣转链：

$api='http://api.vephp.com/hcapi?vekey=xxx&para=541470942175';
print_r (curl_get($api));
/** curl请求 */
function curl_get($url, $headers=[],$cookies='')
{
       $ch = curl_init();
       if(!empty($headers))curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

       curl_setopt($ch, CURLOPT_HEADER, false);
       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
       curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
       curl_setopt($ch, CURLOPT_URL, $url);
       //curl_setopt($ch, CURLOPT_REFERER, 'https://www.taobao.com');
       curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
       //curl_setopt($ch, CURLOPT_POST, 0);
       #curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
       if($cookies) curl_setopt($ch, CURLOPT_COOKIE, $cookies);
       $result = curl_exec($ch);
       curl_close($ch);
       return $result;
}

接口返回值：

{

    "result": 2,

    "data": {

        "category_id": "50010404",

        "coupon_click_url": "https://s.click.taobao.com/t?e=m%3D2%26s%3DjFpOKEpta9R....",

        "commission_rate": "2.50",

        "num_iid": "541470942175",

        "original_uland_link": "https://uland.taobao.com/coupon/edetail?e=PfzDhz7bK8MGQAStt.....",

        "tbk_pwd": "￥FInqbIPD9G6￥",

        "coupon_short_url": "https://s.click.taobao.com/wvs7iGA"

    }

}

相关参数直接在$api参数中传递