(C++) 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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#include <CkHttp.h>
#include <CkBinData.h>
#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    // 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"

    CkHttp http;

    // If SharePoint Windows classic authentication is used, then set the 
    // Login, Password, LoginDomain, and NtlmAuth properties.
    http.put_Login("SHAREPOINT_USERNAME");
    http.put_Password("SHAREPOINT_PASSWORD");
    http.put_LoginDomain("SHAREPOINT_NTLM_DOMAIN");
    http.put_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.

    const char *url = "https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFileByServerRelativeUrl('/Documents/ChilkatTest/japanese.csv')/$value";

    http.put_AcceptCharset("utf-8");

    const char *strCsv = http.quickGetStr(url);
    if (http.get_LastMethodSuccess() != true) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    // The CSV file is contained in strCsv.
    std::cout << "CSV:" << "\r\n";
    std::cout << strCsv << "\r\n";

    // 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:  

    CkBinData bd;
    bool success = http.QuickGetBd(url,bd);
    if (success != true) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    // Interpret the bytes correctly as utf-8
    CkStringBuilder sb;
    sb.AppendBd(bd,"utf-8",0,0);
    std::cout << "CSV:" << "\r\n";
    std::cout << sb.getAsString() << "\r\n";
    }