(Unicode C) Upload File to Google Cloud Storage

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Demonstrates how to upload a file to Google Cloud Storage.

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

void ChilkatSample(void)
    {
    HCkJsonObjectW jsonToken;
    BOOL success;
    HCkHttpW http;
    HCkStringBuilderW sbPath;
    int numReplaced;
    HCkHttpRequestW req;
    HCkHttpResponseW resp;
    int responseCode;

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

    // This example uses a previously obtained access token having permission for the 
    // scope "https://www.googleapis.com/auth/cloud-platform"

    jsonToken = CkJsonObjectW_Create();
    success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/googleCloudStorage.json");
    if (success == FALSE) {
        wprintf(L"%s\n",CkJsonObjectW_lastErrorText(jsonToken));
        CkJsonObjectW_Dispose(jsonToken);
        return;
    }

    // Send a POST equivalent to this curl command.
    // The content of the file is contained in the request body.

    // curl -X POST --data-binary @[OBJECT] \
    //     -H "Authorization: Bearer [OAUTH2_TOKEN]" \
    //     -H "Content-Type: [OBJECT_CONTENT_TYPE]" \
    //     "https://www.googleapis.com/upload/storage/v1/b/[BUCKET_NAME]/o?uploadType=media&name=[OBJECT_NAME]"

    http = CkHttpW_Create();
    CkHttpW_putAuthToken(http,CkJsonObjectW_stringOf(jsonToken,L"access_token"));

    sbPath = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbPath,L"/upload/storage/v1/b/bucket_name/o?uploadType=media&name=object_name");
    numReplaced = CkStringBuilderW_Replace(sbPath,L"bucket_name",L"chilkat-ocean");
    numReplaced = CkStringBuilderW_Replace(sbPath,L"object_name",L"penguins.jpg");

    req = CkHttpRequestW_Create();
    CkHttpRequestW_putHttpVerb(req,L"POST");
    CkHttpRequestW_putPath(req,CkStringBuilderW_getAsString(sbPath));
    CkHttpRequestW_putContentType(req,L"image/jpeg");
    // Indicate the file to be streamed in the request body when the HTTP POST is sent.
    CkHttpRequestW_StreamBodyFromFile(req,L"qa_data/jpg/penguins.jpg");

    resp = CkHttpW_SynchronousRequest(http,L"www.googleapis.com",443,TRUE,req);
    if (CkHttpW_getLastMethodSuccess(http) == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkJsonObjectW_Dispose(jsonToken);
        CkHttpW_Dispose(http);
        CkStringBuilderW_Dispose(sbPath);
        CkHttpRequestW_Dispose(req);
        return;
    }

    responseCode = CkHttpResponseW_getStatusCode(resp);
    if (responseCode == 401) {
        wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp));
        wprintf(L"If invalid credentials, then it is likely the access token expired.\n");
        wprintf(L"Your app should automatically fetch a new access token and re-try.\n");
        CkHttpResponseW_Dispose(resp);
        CkJsonObjectW_Dispose(jsonToken);
        CkHttpW_Dispose(http);
        CkStringBuilderW_Dispose(sbPath);
        CkHttpRequestW_Dispose(req);
        return;
    }

    wprintf(L"Response code: %d\n",responseCode);
    wprintf(L"Response body\n");
    wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp));

    // A successful response looks like this:
    // Response code: 200
    // Response body
    // {
    //  "kind": "storage#object",
    //  "id": "chilkat-ocean/penguins.jpg/1502643657837855",
    //  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/penguins.jpg",
    //  "name": "penguins.jpg",
    //  "bucket": "chilkat-ocean",
    //  "generation": "1502643657837855",
    //  "metageneration": "1",
    //  "contentType": "image/jpeg",
    //  "timeCreated": "2017-08-13T17:00:57.811Z",
    //  "updated": "2017-08-13T17:00:57.811Z",
    //  "storageClass": "MULTI_REGIONAL",
    //  "timeStorageClassUpdated": "2017-08-13T17:00:57.811Z",
    //  "size": "777835",
    //  "md5Hash": "nTd7EM53jEk4s8fixjoimg==",
    //  "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/penguins.jpg?generation=1502643657837855&alt=media",
    //  "crc32c": "ixxYVw==",
    //  "etag": "CJ+azOvX1NUCEAE="
    // }

    CkHttpResponseW_Dispose(resp);


    CkJsonObjectW_Dispose(jsonToken);
    CkHttpW_Dispose(http);
    CkStringBuilderW_Dispose(sbPath);
    CkHttpRequestW_Dispose(req);

    }