(Swift 3,4,5...) HTTP POST with XML Body

Demonstrates sending an HTTP POST with a XML body.

For more information, see https://chilkatsoft.com/http_post_with_xml_body.asp

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func chilkatTest() {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!
    var success: Bool

    // Implements the following CURL command:

    // curl -X POST https://example.com/StockQuote \
    //   -H "Host: www.example.org" \
    //   -H "Content-Type: application/soap+xml; charset=utf-8" \
    //   -H "SOAPAction: http://www.example.org/StockPrice" \
    //   -d '<?xml version="1.0"?>
    // 
    // <soap:Envelope
    // xmlns:soap="http://www.w3.org/2003/05/soap-envelope/"
    // soap:encodingStyle="http://www.w3.org/2003/05/soap-encoding">
    // 
    // <soap:Body xmlns:m="http://www.example.org/stock">
    //   <m:GetStockPrice>
    //     <m:StockName>IBM</m:StockName>
    //   </m:GetStockPrice>
    // </soap:Body>
    // 
    // </soap:Envelope>'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // Use this online tool to generate code from sample XML:
    // Generate Code to Create XML

    // --------------------------------------------------------------------------------
    // Also see Chilkat's Online WSDL Code Generator
    // to generate code and SOAP Request and Response XML for each operation in a WSDL.
    // --------------------------------------------------------------------------------

    // The following XML is sent in the request body.

    // <?xml version="1.0" encoding="utf-8"?>
    // <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope/" soap:encodingStyle="http://www.w3.org/2003/05/soap-encoding">
    //     <soap:Body xmlns:m="http://www.example.org/stock">
    //         <m:GetStockPrice>
    //             <m:StockName>IBM</m:StockName>
    //         </m:GetStockPrice>
    //     </soap:Body>
    // </soap:Envelope>
    // 

    let xml = CkoXml()!
    xml.tag = "soap:Envelope"
    xml.addAttribute("xmlns:soap", value: "http://www.w3.org/2003/05/soap-envelope/")
    xml.addAttribute("soap:encodingStyle", value: "http://www.w3.org/2003/05/soap-encoding")
    xml.updateAttr(at: "soap:Body", autoCreate: true, attrName: "xmlns:m", attrValue: "http://www.example.org/stock")
    xml.updateChildContent("soap:Body|m:GetStockPrice|m:StockName", value: "IBM")

    http.setRequestHeader("SOAPAction", value: "http://www.example.org/StockPrice")
    http.setRequestHeader("Host", value: "www.example.org")
    http.setRequestHeader("Content-Type", value: "application/soap+xml; charset=utf-8")

    let sbRequestBody = CkoStringBuilder()!
    xml.getSb(sbRequestBody)

    var resp: CkoHttpResponse? = http.pTextSb("POST", url: "https://example.com/StockQuote", textData: sbRequestBody, charset: "utf-8", contentType: "application/soap+xml; charset=utf-8", md5: false, gzip: false)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    print("\(resp!.statusCode.intValue)")
    print("\(resp!.bodyStr!)")
    resp = nil

}