(Unicode C++) Google Cloud Storage: Update Object Metadata

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Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://cloud.google.com/storage/docs/viewing-editing-metadata#edit

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#include <CkHttpW.h>
#include <CkBinDataW.h>
#include <CkHttpResponseW.h>
#include <CkStringBuilderW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkHttpW http;

    // Implements the following CURL command:

    // curl -X PATCH --data-binary @JSON_FILE_NAME \
    //   -H "Authorization: Bearer OAUTH2_TOKEN" \
    //   -H "Content-Type: application/json" \
    //   "https://storage.googleapis.com/storage/v1/b/BUCKET_NAME/o/OBJECT_NAME"

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    CkBinDataW bdRequestBody;
    success = bdRequestBody.LoadFile(L"JSON_FILE_PATH");
    if (success != true) {
        wprintf(L"Failed to load JSON_FILE_PATH\n");
        return;
    }

    // Adds the "Authorization: Bearer OAUTH2_TOKEN" header.
    http.put_AuthToken(L"OAUTH2_TOKEN");

    CkHttpResponseW resp;
    success = http.HttpBd(L"PATCH",L"https://storage.googleapis.com/storage/v1/b/BUCKET_NAME/o/OBJECT_NAME",bdRequestBody,L"application/json",resp);
    if (success == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    CkStringBuilderW sbResponseBody;
    resp.GetBodySb(sbResponseBody);

    CkJsonObjectW jResp;
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

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

    int respStatusCode = resp.get_StatusCode();
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",resp.header());
        wprintf(L"Failed.\n");
        return;
    }
    }