Unicode C

Okta: Use the Resource Owner Password Flow

See more Okta OAuth/OIDC Examples

Demonstrates how to get an access token using the Resource Owner Password Flow. Unicode C

#include <C_CkHttpW.h>
#include <C_CkHttpRequestW.h>
#include <C_CkHttpResponseW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttpW http;
    HCkHttpRequestW req;
    HCkHttpResponseW resp;
    HCkStringBuilderW sbResponseBody;
    HCkJsonObjectW jResp;
    int respStatusCode;
    const wchar_t *access_token;
    const wchar_t *token_type;
    int expires_in;
    const wchar_t *scope;
    const wchar_t *id_token;

    success = FALSE;

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

    http = CkHttpW_Create();

    // Implements the following CURL command:

    // curl --request POST \
    //   --url https://{yourOktaDomain}/oauth2/default/v1/token \
    //   --header 'accept: application/json' \
    //   --user "client_id:client_secret" \
    //   --header 'content-type: application/x-www-form-urlencoded' \
    //   --data 'grant_type=password&username=myUserEmail&password=myPassword&scope=openid'

    CkHttpW_putLogin(http,L"client_id");
    CkHttpW_putPassword(http,L"client_secret");

    req = CkHttpRequestW_Create();
    CkHttpRequestW_putHttpVerb(req,L"POST");
    CkHttpRequestW_putPath(req,L"/oauth2/default/v1/token");
    CkHttpRequestW_putContentType(req,L"application/x-www-form-urlencoded");
    CkHttpRequestW_AddParam(req,L"grant_type",L"password");
    CkHttpRequestW_AddParam(req,L"username",L"myUserEmail");
    CkHttpRequestW_AddParam(req,L"password",L"myPassword");
    CkHttpRequestW_AddParam(req,L"scope",L"openid");

    CkHttpRequestW_AddHeader(req,L"accept",L"application/json");

    resp = CkHttpResponseW_Create();
    success = CkHttpW_HttpReq(http,L"https://{yourOktaDomain}/oauth2/default/v1/token",req,resp);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkHttpRequestW_Dispose(req);
        CkHttpResponseW_Dispose(resp);
        return;
    }

    sbResponseBody = CkStringBuilderW_Create();
    CkHttpResponseW_GetBodySb(resp,sbResponseBody);
    jResp = CkJsonObjectW_Create();
    CkJsonObjectW_LoadSb(jResp,sbResponseBody);
    CkJsonObjectW_putEmitCompact(jResp,FALSE);

    wprintf(L"Response Body:\n");
    wprintf(L"%s\n",CkJsonObjectW_emit(jResp));

    respStatusCode = CkHttpResponseW_getStatusCode(resp);
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",CkHttpResponseW_header(resp));
        wprintf(L"Failed.\n");
        CkHttpW_Dispose(http);
        CkHttpRequestW_Dispose(req);
        CkHttpResponseW_Dispose(resp);
        CkStringBuilderW_Dispose(sbResponseBody);
        CkJsonObjectW_Dispose(jResp);
        return;
    }

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "access_token": "eyJraWQiOi ... jmiHD7wY9_gQ",
    //   "token_type": "Bearer",
    //   "expires_in": 3600,
    //   "scope": "openid",
    //   "id_token": "eyJraWQiOiJ ... W7KkWiPJnUSMoGw"
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    access_token = CkJsonObjectW_stringOf(jResp,L"access_token");
    token_type = CkJsonObjectW_stringOf(jResp,L"token_type");
    expires_in = CkJsonObjectW_IntOf(jResp,L"expires_in");
    scope = CkJsonObjectW_stringOf(jResp,L"scope");
    id_token = CkJsonObjectW_stringOf(jResp,L"id_token");


    CkHttpW_Dispose(http);
    CkHttpRequestW_Dispose(req);
    CkHttpResponseW_Dispose(resp);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jResp);

    }