(MFC) AzureWebsites OAuth2 Password Flow

Demonstrates how to do OAuth 2.0 password flow for azurewebsites.net.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkHttp.h>
#include <CkHttpRequest.h>
#include <CkHttpResponse.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http;
    bool success;

    CkHttpRequest req;
    req.put_HttpVerb("POST");
    req.put_Path("/token");
    req.put_ContentType("application/x-www-form-urlencoded");
    req.AddParam("grant_type","password");
    req.AddParam("username","your_username");
    req.AddParam("password","your_password");

    const char *tokenEndpoint = "https://your_api.azurewebsites.net/token";
    CkHttpResponse *resp = http.PostUrlEncoded(tokenEndpoint,req);
    if (http.get_LastMethodSuccess() == false) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkStringBuilder sbResponseBody;
    resp->GetBodySb(sbResponseBody);
    CkJsonObject jResp;
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

    strOut.append("Response Body:");
    strOut.append("\r\n");
    strOut.append(jResp.emit());
    strOut.append("\r\n");

    // Sample JSON response:

    // {
    //   "access_token": "NQGHn ... xTS",
    //   "token_type": "bearer",
    //   "expires_in": 1209599,
    //   "userName": "your_username",
    //   ".issued": "Mon, 27 Apr 2020 23:49:35 GMT",
    //   ".expires": "Mon, 11 May 2020 23:49:35 GMT"
    // }

    int respStatusCode = resp->get_StatusCode();
    strOut.append("Response Status Code = ");
    strOut.appendInt(respStatusCode);
    strOut.append("\r\n");
    if (respStatusCode >= 400) {
        strOut.append("Response Header:");
        strOut.append("\r\n");
        strOut.append(resp->header());
        strOut.append("\r\n");
        strOut.append("Failed.");
        strOut.append("\r\n");
        delete resp;
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    delete resp;

    // ----------------------------------
    // Use the OAuth2 token in a request.
    // For example...

    CkStringBuilder sbXml;
    success = sbXml.LoadFile("c:/someDir/someXmlFile.xml","utf-8");
    if (success == false) {
        strOut.append("Failed to load the XML file.");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Get the OAuth2 token and use it for authentication
    http.put_AuthToken(jResp.stringOf("token"));

    const char *destUrl = "https://your_api.azurewebsites.net/destinationUrl";
    resp = http.PostXml(destUrl,sbXml.getAsString(),"utf-8");
    if (http.get_LastMethodSuccess() == false) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    respStatusCode = resp->get_StatusCode();
    strOut.append("Response Status Code = ");
    strOut.appendInt(respStatusCode);
    strOut.append("\r\n");
    if (respStatusCode >= 400) {
        strOut.append("Response Header:");
        strOut.append("\r\n");
        strOut.append(resp->header());
        strOut.append("\r\n");
        strOut.append("Failed.");
        strOut.append("\r\n");
        delete resp;
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Examine the response body
    strOut.append(resp->bodyStr());
    strOut.append("\r\n");

    delete resp;


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }