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(Unicode C) Google Cloud Storage List Bucket ObjectsSee more Google Cloud Storage ExamplesList the objects in a Google Cloud Storage bucket. For more information, see https://cloud.google.com/storage/docs/json_api/v1/objects/list
#include <C_CkStringBuilderW.h> #include <C_CkHttpW.h> #include <C_CkHttpResponseW.h> #include <C_CkJsonObjectW.h> void ChilkatSample(void) { HCkStringBuilderW sbToken; HCkHttpW http; BOOL success; HCkHttpResponseW resp; int responseCode; HCkJsonObjectW json; const wchar_t *id; const wchar_t *selfLink; const wchar_t *mediaLink; const wchar_t *name; const wchar_t *bucket; const wchar_t *generation; const wchar_t *metageneration; const wchar_t *contentType; const wchar_t *storageClass; const wchar_t *size; const wchar_t *md5Hash; const wchar_t *crc32c; const wchar_t *etag; const wchar_t *timeCreated; const wchar_t *updated; const wchar_t *timeStorageClassUpdated; const wchar_t *kind; int i; int count_i; // 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" // In this example, Get Google Cloud Storage OAuth2 Access Token, // the service account access token was saved to a text file. This example fetches the access token from the file.. sbToken = CkStringBuilderW_Create(); CkStringBuilderW_LoadFile(sbToken,L"qa_data/tokens/googleCloudStorageAccessToken.txt",L"utf-8"); http = CkHttpW_Create(); CkHttpW_putAuthToken(http,CkStringBuilderW_getAsString(sbToken)); // For more info see Cloud Storage Documentation - Objects: list // success = CkHttpW_SetUrlVar(http,L"bucket",L"chilkat-ocean"); success = CkHttpW_SetUrlVar(http,L"PROJECT_NAME",L"ChilkatCloud"); resp = CkHttpW_QuickGetObj(http,L"https://www.googleapis.com/storage/v1/b/{$bucket}/o?project={$ChilkatCloud}"); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkStringBuilderW_Dispose(sbToken); CkHttpW_Dispose(http); 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); CkStringBuilderW_Dispose(sbToken); CkHttpW_Dispose(http); return; } wprintf(L"Response code: %d\n",responseCode); wprintf(L"Response body\n"); json = CkJsonObjectW_Create(); success = CkJsonObjectW_Load(json,CkHttpResponseW_bodyStr(resp)); CkHttpResponseW_Dispose(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#objects", // "items": [ // { // "kind": "storage#object", // "id": "chilkat-ocean/file with space char.jpg/1555776690752366", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/file%20with%20space%20char.jpg", // "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/file%20with%20space%20char.jpg?generation=1555776690752366&alt=media", // "name": "file with space char.jpg", // "bucket": "chilkat-ocean", // "generation": "1555776690752366", // "metageneration": "1", // "contentType": "image/jpeg", // "storageClass": "MULTI_REGIONAL", // "size": "6229", // "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==", // "crc32c": "9RjgwQ==", // "etag": "CO6WguiH3+ECEAE=", // "timeCreated": "2019-04-20T16:11:30.752Z", // "updated": "2019-04-20T16:11:30.752Z", // "timeStorageClassUpdated": "2019-04-20T16:11:30.752Z" // }, // { // "kind": "storage#object", // // "id": "chilkat-ocean/penguins.jpg/1555775749593296", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/penguins.jpg", // "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/penguins.jpg?generation=1555775749593296&alt=media", // "name": "penguins.jpg", // "bucket": "chilkat-ocean", // "generation": "1555775749593296", // "metageneration": "1", // "contentType": "image/jpeg", // "storageClass": "MULTI_REGIONAL", // "size": "777835", // "md5Hash": "nTd7EM53jEk4s8fixjoimg==", // "crc32c": "ixxYVw==", // "etag": "CNCxnqeE3+ECEAE=", // "timeCreated": "2019-04-20T15:55:49.593Z", // "updated": "2019-04-20T15:55:49.593Z", // "timeStorageClassUpdated": "2019-04-20T15:55:49.593Z" // }, // { // "kind": "storage#object", // "id": "chilkat-ocean/starfish.jpg/1628958192639968", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg", // "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/starfish.jpg?generation=1628958192639968&alt=media", // "name": "starfish.jpg", // "bucket": "chilkat-ocean", // "generation": "1628958192639968", // "metageneration": "1", // "contentType": "image/jpeg", // "storageClass": "MULTI_REGIONAL", // "size": "6229", // "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==", // "crc32c": "9RjgwQ==", // "etag": "COC/tJP2sPICEAE=", // "timeCreated": "2021-08-14T16:23:12.660Z", // "updated": "2021-08-14T16:23:12.660Z", // "timeStorageClassUpdated": "2021-08-14T16:23:12.660Z" // } // ] // } // Use this online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat. // See this example explaining how this memory should be used: const char * functions. 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"); mediaLink = CkJsonObjectW_stringOf(json,L"items[i].mediaLink"); name = CkJsonObjectW_stringOf(json,L"items[i].name"); bucket = CkJsonObjectW_stringOf(json,L"items[i].bucket"); generation = CkJsonObjectW_stringOf(json,L"items[i].generation"); metageneration = CkJsonObjectW_stringOf(json,L"items[i].metageneration"); contentType = CkJsonObjectW_stringOf(json,L"items[i].contentType"); storageClass = CkJsonObjectW_stringOf(json,L"items[i].storageClass"); size = CkJsonObjectW_stringOf(json,L"items[i].size"); md5Hash = CkJsonObjectW_stringOf(json,L"items[i].md5Hash"); crc32c = CkJsonObjectW_stringOf(json,L"items[i].crc32c"); etag = CkJsonObjectW_stringOf(json,L"items[i].etag"); timeCreated = CkJsonObjectW_stringOf(json,L"items[i].timeCreated"); updated = CkJsonObjectW_stringOf(json,L"items[i].updated"); timeStorageClassUpdated = CkJsonObjectW_stringOf(json,L"items[i].timeStorageClassUpdated"); i = i + 1; } CkStringBuilderW_Dispose(sbToken); CkHttpW_Dispose(http); CkJsonObjectW_Dispose(json); } |
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