C

Dynamics CRM Oauth2 Client Credentials

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

#include <C_CkHttp.h>
#include <C_CkHttpRequest.h>
#include <C_CkHttpResponse.h>
#include <C_CkJsonObject.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttp http;
    HCkHttpRequest req;
    const char *url;
    HCkHttpResponse resp;
    int statusCode;
    HCkJsonObject json;

    success = FALSE;

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

    http = CkHttp_Create();

    // Pass the client ID/secret using Basic HTTP authentication.
    CkHttp_putLogin(http,"CLIENT_ID");
    CkHttp_putPassword(http,"CLIENT_SECRET");
    CkHttp_putBasicAuth(http,TRUE);

    req = CkHttpRequest_Create();
    CkHttpRequest_AddParam(req,"client_secret","CLIENT_SECRET");
    CkHttpRequest_AddParam(req,"client_id","CLIENT_ID");
    CkHttpRequest_AddParam(req,"scope","https://yourdynamicsdomain.crm3.dynamics.com/.default");
    CkHttpRequest_AddParam(req,"grant_type","client_credentials");

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

    resp = CkHttpResponse_Create();
    success = CkHttp_HttpReq(http,url,req,resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkHttpRequest_Dispose(req);
        CkHttpResponse_Dispose(resp);
        return;
    }

    statusCode = CkHttpResponse_getStatusCode(resp);
    printf("Response status code = %d\n",statusCode);

    json = CkJsonObject_Create();
    CkJsonObject_Load(json,CkHttpResponse_bodyStr(resp));

    CkJsonObject_putEmitCompact(json,FALSE);
    printf("%s\n",CkJsonObject_emit(json));

    if (statusCode == 200) {
        CkJsonObject_WriteFile(json,"qa_data/tokens/dynamicsCrmClientCredentialsToken.json");
        printf("Success.\n");
    }
    else {
        printf("Failed.\n");
    }



    CkHttp_Dispose(http);
    CkHttpRequest_Dispose(req);
    CkHttpResponse_Dispose(resp);
    CkJsonObject_Dispose(json);

    }