(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_CkHttp.h>
#include <C_CkJsonObject.h>
#include <C_CkHttpResponse.h>
#include <C_CkStringBuilder.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    HCkJsonObject jsonToken;
    BOOL success;
    const char *refreshToken;
    HCkJsonObject json;
    HCkHttpResponse resp;
    HCkStringBuilder sbResponseBody;
    HCkJsonObject jResp;
    int respStatusCode;
    const char *refresh_token;
    const char *access_token;

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

    http = CkHttp_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 = CkJsonObject_Create();
    success = CkJsonObject_LoadFile(jsonToken,"qa_data/tokens/wix.json");
    if (success != TRUE) {
        printf("Failed to load square.json\n");
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(jsonToken);
        return;
    }

    // Get the "refresh_token"
    refreshToken = CkJsonObject_stringOf(jsonToken,"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 = CkJsonObject_Create();
    CkJsonObject_UpdateString(json,"grant_type","refresh_token");
    CkJsonObject_UpdateString(json,"client_id","CLIENT_ID");
    CkJsonObject_UpdateString(json,"client_secret","CLIENT_SECRET");
    CkJsonObject_UpdateString(json,"refresh_token",refreshToken);

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

    resp = CkHttp_PostJson3(http,"https://www.wix.com/oauth/access","application/json",json);
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(jsonToken);
        CkJsonObject_Dispose(json);
        return;
    }

    sbResponseBody = CkStringBuilder_Create();
    CkHttpResponse_GetBodySb(resp,sbResponseBody);
    jResp = CkJsonObject_Create();
    CkJsonObject_LoadSb(jResp,sbResponseBody);
    CkJsonObject_putEmitCompact(jResp,FALSE);

    printf("Response Body:\n");
    printf("%s\n",CkJsonObject_emit(jResp));

    respStatusCode = CkHttpResponse_getStatusCode(resp);
    printf("Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        printf("Response Header:\n");
        printf("%s\n",CkHttpResponse_header(resp));
        printf("Failed.\n");
        CkHttpResponse_Dispose(resp);
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(jsonToken);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbResponseBody);
        CkJsonObject_Dispose(jResp);
        return;
    }

    CkHttpResponse_Dispose(resp);

    // Sample JSON response:

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

    refresh_token = CkJsonObject_stringOf(jResp,"refresh_token");
    access_token = CkJsonObject_stringOf(jResp,"access_token");

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


    CkHttp_Dispose(http);
    CkJsonObject_Dispose(jsonToken);
    CkJsonObject_Dispose(json);
    CkStringBuilder_Dispose(sbResponseBody);
    CkJsonObject_Dispose(jResp);

    }