(Swift 2) SharePoint -- Delete a Folder

Demonstrates how to delete a SharePoint folder.

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

    let http = CkoHttp()

    // If SharePoint Windows classic authentication is used, then set the 
    // Login, Password, LoginDomain, and NtlmAuth properties.
    http.Login = "SHAREPOINT_USERNAME"
    http.Password = "SHAREPOINT_PASSWORD"
    http.LoginDomain = "SHAREPOINT_NTLM_DOMAIN"
    http.NtlmAuth = true

    // The more common case is to use SharePoint Online authentication (via the SPOIDCRL cookie).
    // If so, do not set Login, Password, LoginDomain, and NtlmAuth, and instead
    // establish the cookie as shown at SharePoint Online Authentication

    // This example will delete the folder /Documents/ChilkatTest2

    let req = CkoHttpRequest()
    req.HttpVerb = "POST"
    // If your Sharepoint site is within a site collection, then use "/sites/teamA/_api/web/GetFolderByServerRelativeUrl('/sites/teamA/Documents/ChilkatTest2')" where "teamA" is the name of the site.
    req.Path = "/_api/web/GetFolderByServerRelativeUrl('/Documents/ChilkatTest2')"

    // We need to add a form digest value in the X-RequestDigest header field.
    // See this example for details on
    // how to get (and cache) a form digest value
    req.AddHeader("X-RequestDigest", value: "SHAREPOINT_FORM_DIGEST")

    // Add additional required headers.
    req.AddHeader("IF-MATCH", value: "*")
    req.AddHeader("X-HTTP-Method", value: "DELETE")

    // Send the POST using https (TLS). (Port 443 is the default port for https.)
    var bUseTls: Bool = true
    var resp: CkoHttpResponse? = http.SynchronousRequest("SHAREPOINT_HTTPS_DOMAIN", port: 443, ssl: bUseTls, req: req)
    if http.LastMethodSuccess != true {
        print("\(http.LastErrorText)")
        return
    }

    // If failed, the response body contains XML 
    let xml = CkoXml()
    xml.LoadXml(resp!.BodyStr)

    // Note: It seems that if an attempt is made to delete a folder that does not exist,
    // the response status code is 200, indicating success.
    if resp!.StatusCode.intValue != 200 {
        print("Response status code = \(resp!.StatusCode.intValue)")
        print("\(xml.GetXml())")
        print("Failed")
        resp = nil
        return
    }

    resp = nil

    // If successful, the response body is empty.
    print("Success.")

}