Unicode C

Google Cloud Storage List Buckets

See more Google Cloud Storage Examples

Demonstrates how to retrieve a list of buckets for a given project. Unicode C

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkJsonObjectW jsonToken;
    HCkHttpW http;
    HCkHttpResponseW resp;
    int responseCode;
    HCkJsonObjectW json;
    const wchar_t *kind;
    int i;
    int count_i;
    const wchar_t *id;
    const wchar_t *selfLink;
    const wchar_t *projectNumber;
    const wchar_t *name;
    const wchar_t *timeCreated;
    const wchar_t *updated;
    const wchar_t *metageneration;
    BOOL iamConfigurationBucketPolicyOnlyEnabled;
    const wchar_t *location;
    const wchar_t *storageClass;
    const wchar_t *etag;

    success = FALSE;

    // 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;
    }

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

    // For more info see Cloud Storage Documentation - Buckets: list 
    // 
    success = CkHttpW_SetUrlVar(http,L"PROJECT_ID",L"chilkattest-1050");
    resp = CkHttpResponseW_Create();
    success = CkHttpW_HttpNoBody(http,L"GET",L"https://www.googleapis.com/storage/v1/b?project={$PROJECT_ID}",resp);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkJsonObjectW_Dispose(jsonToken);
        CkHttpW_Dispose(http);
        CkHttpResponseW_Dispose(resp);
        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");
        CkJsonObjectW_Dispose(jsonToken);
        CkHttpW_Dispose(http);
        CkHttpResponseW_Dispose(resp);
        return;
    }

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

    json = CkJsonObjectW_Create();
    success = CkJsonObjectW_Load(json,CkHttpResponseW_bodyStr(resp));

    CkJsonObjectW_putEmitCompact(json,FALSE);

    wprintf(L"%s\n",CkJsonObjectW_emit(json));

    // A response code = 200 indicates success, and the response body contains JSON such as this:

    // {
    //   "kind": "storage#buckets",
    //   "items": [
    //     {
    //       "kind": "storage#bucket",
    //       "id": "chilkat-bucket",
    //       "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket",
    //       "projectNumber": "5332332985",
    //       "name": "chilkat-bucket",
    //       "timeCreated": "2018-10-23T00:04:44.507Z",
    //       "updated": "2018-10-23T00:04:44.507Z",
    //       "metageneration": "1",
    //       "iamConfiguration": {
    //         "bucketPolicyOnly": {
    //           "enabled": false
    //         }
    //       },
    //       "location": "US",
    //       "storageClass": "MULTI_REGIONAL",
    //       "etag": "CAE="
    //     },
    //     {
    //       "kind": "storage#bucket",
    //       "id": "chilkat-images",
    //       "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-images",
    //       "projectNumber": "5332332985",
    //       "name": "chilkat-images",
    //       "timeCreated": "2018-10-23T11:24:43.000Z",
    //       "updated": "2018-10-23T11:24:43.000Z",
    //       "metageneration": "1",
    //       "iamConfiguration": {
    //         "bucketPolicyOnly": {
    //           "enabled": false
    //         }
    //       },
    //       "location": "US",
    //       "storageClass": "MULTI_REGIONAL",
    //       "etag": "CAE="
    //     }
    //   ]
    // }

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    kind = CkJsonObjectW_stringOf(json,L"kind");
    i = 0;
    count_i = CkJsonObjectW_SizeOfArray(json,L"items");
    while (i < count_i) {
        CkJsonObjectW_putI(json,i);
        kind = CkJsonObjectW_stringOf(json,L"items[i].kind");
        id = CkJsonObjectW_stringOf(json,L"items[i].id");
        selfLink = CkJsonObjectW_stringOf(json,L"items[i].selfLink");
        projectNumber = CkJsonObjectW_stringOf(json,L"items[i].projectNumber");
        name = CkJsonObjectW_stringOf(json,L"items[i].name");
        timeCreated = CkJsonObjectW_stringOf(json,L"items[i].timeCreated");
        updated = CkJsonObjectW_stringOf(json,L"items[i].updated");
        metageneration = CkJsonObjectW_stringOf(json,L"items[i].metageneration");
        iamConfigurationBucketPolicyOnlyEnabled = CkJsonObjectW_BoolOf(json,L"items[i].iamConfiguration.bucketPolicyOnly.enabled");
        location = CkJsonObjectW_stringOf(json,L"items[i].location");
        storageClass = CkJsonObjectW_stringOf(json,L"items[i].storageClass");
        etag = CkJsonObjectW_stringOf(json,L"items[i].etag");
        i = i + 1;
    }



    CkJsonObjectW_Dispose(jsonToken);
    CkHttpW_Dispose(http);
    CkHttpResponseW_Dispose(resp);
    CkJsonObjectW_Dispose(json);

    }