(C) Google Cloud Storage List Buckets

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

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#include <C_CkJsonObject.h>
#include <C_CkHttp.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    HCkJsonObject jsonToken;
    BOOL success;
    HCkHttp http;
    HCkHttpResponse resp;
    int responseCode;
    HCkJsonObject json;
    const char *kind;
    int i;
    int count_i;
    const char *id;
    const char *selfLink;
    const char *projectNumber;
    const char *name;
    const char *timeCreated;
    const char *updated;
    const char *metageneration;
    BOOL iamConfigurationBucketPolicyOnlyEnabled;
    const char *location;
    const char *storageClass;
    const char *etag;

    // 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 = CkJsonObject_Create();
    success = CkJsonObject_LoadFile(jsonToken,"qa_data/tokens/googleCloudStorage.json");
    if (success == FALSE) {
        printf("%s\n",CkJsonObject_lastErrorText(jsonToken));
        CkJsonObject_Dispose(jsonToken);
        return;
    }

    http = CkHttp_Create();
    CkHttp_putAuthToken(http,CkJsonObject_stringOf(jsonToken,"access_token"));

    // For more info see Cloud Storage Documentation - Buckets: list 
    // 
    success = CkHttp_SetUrlVar(http,"PROJECT_ID","chilkattest-1050");
    resp = CkHttp_QuickGetObj(http,"https://www.googleapis.com/storage/v1/b?project={$PROJECT_ID}");
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkJsonObject_Dispose(jsonToken);
        CkHttp_Dispose(http);
        return;
    }

    responseCode = CkHttpResponse_getStatusCode(resp);
    if (responseCode == 401) {
        printf("%s\n",CkHttpResponse_bodyStr(resp));
        printf("If invalid credentials, then it is likely the access token expired.\n");
        printf("Your app should automatically fetch a new access token and re-try.\n");
        CkHttpResponse_Dispose(resp);
        CkJsonObject_Dispose(jsonToken);
        CkHttp_Dispose(http);
        return;
    }

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

    json = CkJsonObject_Create();
    success = CkJsonObject_Load(json,CkHttpResponse_bodyStr(resp));
    CkHttpResponse_Dispose(resp);

    CkJsonObject_putEmitCompact(json,FALSE);

    printf("%s\n",CkJsonObject_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 = CkJsonObject_stringOf(json,"kind");
    i = 0;
    count_i = CkJsonObject_SizeOfArray(json,"items");
    while (i < count_i) {
        CkJsonObject_putI(json,i);
        kind = CkJsonObject_stringOf(json,"items[i].kind");
        id = CkJsonObject_stringOf(json,"items[i].id");
        selfLink = CkJsonObject_stringOf(json,"items[i].selfLink");
        projectNumber = CkJsonObject_stringOf(json,"items[i].projectNumber");
        name = CkJsonObject_stringOf(json,"items[i].name");
        timeCreated = CkJsonObject_stringOf(json,"items[i].timeCreated");
        updated = CkJsonObject_stringOf(json,"items[i].updated");
        metageneration = CkJsonObject_stringOf(json,"items[i].metageneration");
        iamConfigurationBucketPolicyOnlyEnabled = CkJsonObject_BoolOf(json,"items[i].iamConfiguration.bucketPolicyOnly.enabled");
        location = CkJsonObject_stringOf(json,"items[i].location");
        storageClass = CkJsonObject_stringOf(json,"items[i].storageClass");
        etag = CkJsonObject_stringOf(json,"items[i].etag");
        i = i + 1;
    }



    CkJsonObject_Dispose(jsonToken);
    CkHttp_Dispose(http);
    CkJsonObject_Dispose(json);

    }