(Unicode C) Refresh WiX Access Token

Request a new access token each time you call a WiX API. Use the refresh token together with your secret key, to request refresh tokens

For more information, see https://dev.wix.com/api/rest/authorization/oauth-2/refresh-an-access-token

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

void ChilkatSample(void)
    {
    HCkHttpW http;
    HCkJsonObjectW jsonToken;
    BOOL success;
    const wchar_t *refreshToken;
    HCkJsonObjectW json;
    HCkHttpResponseW resp;
    HCkStringBuilderW sbResponseBody;
    HCkJsonObjectW jResp;
    int respStatusCode;
    const wchar_t *refresh_token;
    const wchar_t *access_token;

    // 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 -X POST \
    //   https://www.wix.com/oauth/access \
    //   -H 'Content-Type: application/json' \
    //   -d '{
    //     "grant_type": "refresh_token",
    //     "client_id": <CLIENT_ID>,
    //     "client_secret": <CLIENT_SECRET>,
    //     "refresh_token": <REFRESH_TOKEN>
    // }'

    // It is assumed we previously obtained an OAuth2 access token.
    // This example loads the JSON access token file 
    // saved by this example: Get WiX OAuth2 Access Token

    jsonToken = CkJsonObjectW_Create();
    success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/wix.json");
    if (success != TRUE) {
        wprintf(L"Failed to load square.json\n");
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        return;
    }

    // Get the "refresh_token"
    refreshToken = CkJsonObjectW_stringOf(jsonToken,L"refresh_token");

    // The following JSON is sent in the request body.

    // {
    //   "grant_type": "refresh_token",
    //   "client_id": <APP_ID>,
    //   "client_secret": <APP_SECRET>,
    //   "refresh_token": <REFRESH_TOKEN>
    // }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"grant_type",L"refresh_token");
    CkJsonObjectW_UpdateString(json,L"client_id",L"CLIENT_ID");
    CkJsonObjectW_UpdateString(json,L"client_secret",L"CLIENT_SECRET");
    CkJsonObjectW_UpdateString(json,L"refresh_token",refreshToken);

    CkHttpW_SetRequestHeader(http,L"Content-Type",L"application/json");

    resp = CkHttpW_PostJson3(http,L"https://www.wix.com/oauth/access",L"application/json",json);
    if (CkHttpW_getLastMethodSuccess(http) == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        CkJsonObjectW_Dispose(json);
        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");
        CkHttpResponseW_Dispose(resp);
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        CkJsonObjectW_Dispose(json);
        CkStringBuilderW_Dispose(sbResponseBody);
        CkJsonObjectW_Dispose(jResp);
        return;
    }

    CkHttpResponseW_Dispose(resp);

    // Sample JSON response:

    // {
    //   "refresh_token": "OAUTH2.eyJraWQ ... vnB4cQ",
    //   "access_token": "OAUTH2.eyJra ... la18lrw"
    // }

    refresh_token = CkJsonObjectW_stringOf(jResp,L"refresh_token");
    access_token = CkJsonObjectW_stringOf(jResp,L"access_token");

    // Save the new JSON access token response to a file.
    CkStringBuilderW_WriteFile(sbResponseBody,L"qa_data/tokens/wix.json",L"utf-8",FALSE);


    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(jsonToken);
    CkJsonObjectW_Dispose(json);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jResp);

    }