有谁知道如何用 R 制定以下 SOAP 请求?
POST /API/v201010/AdvertiserService.asmx HTTP/1.1
Host: advertising.criteo.com
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "https://advertising.criteo.com/API/v201010/clientLogin"
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<clientLogin xmlns="https://advertising.criteo.com/API/v201010">
<username>string</username>
<password>string</password>
<source>string</source>
</clientLogin>
</soap:Body>
</soap:Envelope>