(Swift 2) SharePoint -- Download a Text File into a String Variable

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Demonstrates how to download a text file from SharePoint into a string variable.

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

    // -------------------------------------------------------------------------
    // The following comments apply to SharePoint Windows classic authentication.
    // -------------------------------------------------------------------------
    // For example, imagine our SharePoint endpoint is https://xyzoffice.mycompany.com/
    // The SHAREPOINT_NTLM_DOMAIN would be "mycompany.com"
    // The SHAREPOINT_HTTPS_DOMAIN would be "xyzoffice.mycompany.com"
    // Also, the SHAREPOINT_USERNAME would be just the name, not a full email address.
    // for example, "chilkat" instead of "chilkat@mycompany.com"

    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 downloads a CSV file that is utf-8 and contains Japanese characters.

    var url: String? = "https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFileByServerRelativeUrl('/Documents/ChilkatTest/japanese.csv')/$value"

    http.AcceptCharset = "utf-8"

    var strCsv: String? = http.QuickGetStr(url)
    if http.LastMethodSuccess != true {
        print("\(http.LastErrorText)")
        return
    }

    // The CSV file is contained in strCsv.
    print("CSV:")
    print("\(strCsv!)")

    // Note: The HTTP response hopefully indicates the charset of the response,
    // and Chilkat should receive the string correctly.  If the response sent by
    // SharePoint does not indicate a charset, or indicates an incorrect charset,
    // then we can instead download the text file as binary data and interpret the
    // bytes ourselves correctly.  For example:  

    let bd = CkoBinData()
    var success: Bool = http.QuickGetBd(url, binData: bd)
    if success != true {
        print("\(http.LastErrorText)")
        return
    }

    // Interpret the bytes correctly as utf-8
    let sb = CkoStringBuilder()
    sb.AppendBd(bd, charset: "utf-8", offset: 0, numBytes: 0)
    print("CSV:")
    print("\(sb.GetAsString())")

}