(Unicode C++) Dynamics CRM Oauth2 Client Credentials

Get an OAuth2 access token for Dynamics CRM using client credentials.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <CkHttpW.h>
#include <CkHttpRequestW.h>
#include <CkHttpResponseW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkHttpW http;

    // Pass the client ID/secret using Basic HTTP authentication.
    http.put_Login(L"CLIENT_ID");
    http.put_Password(L"CLIENT_SECRET");
    http.put_BasicAuth(true);

    CkHttpRequestW req;
    req.AddParam(L"client_secret",L"CLIENT_SECRET");
    req.AddParam(L"client_id",L"CLIENT_ID");
    req.AddParam(L"scope",L"https://yourdynamicsdomain.crm3.dynamics.com/.default");
    req.AddParam(L"grant_type",L"client_credentials");

    // Use your own tenant ID, for example 4d8fdd66-66d1-43b0-ae5c-e31b4b7de5cd
    const wchar_t *url = L"https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token";
    req.put_HttpVerb(L"POST");
    req.put_ContentType(L"application/x-www-form-urlencoded");

    CkHttpResponseW resp;
    success = http.HttpReq(url,req,resp);
    if (success == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    int statusCode = resp.get_StatusCode();
    wprintf(L"Response status code = %d\n",statusCode);

    CkJsonObjectW json;
    json.Load(resp.bodyStr());

    json.put_EmitCompact(false);
    wprintf(L"%s\n",json.emit());

    if (statusCode == 200) {
        json.WriteFile(L"qa_data/tokens/dynamicsCrmClientCredentialsToken.json");
        wprintf(L"Success.\n");
    }
    else {
        wprintf(L"Failed.\n");
    }
    }