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(Unicode C) Manage Bucket Storage ClassSee more Google Cloud Storage ExamplesDemonstrates how to manage a bucket's default storage class. See Cloud Storage Classes for information about storage classes.
#include <C_CkStringBuilderW.h> #include <C_CkJsonObjectW.h> #include <C_CkHttpW.h> #include <C_CkHttpResponseW.h> void ChilkatSample(void) { HCkStringBuilderW sbToken; HCkJsonObjectW json; HCkHttpW http; const wchar_t *url; 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" // 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"); // ---- Step 1 // Create the JSON body of the PUT request that will be sent. // { // "storageClass": "[STORAGE_CLASS]" // } // json = CkJsonObjectW_Create(); // Be careful if using the "regional" storage class. See the note below about the 400 error response. CkJsonObjectW_UpdateString(json,L"storageClass",L"nearline"); // ---- Step 2 // Send a PUT equivalent to this curl command // curl -X PUT --data-binary @[JSON_FILE_NAME].json \ // -H "Authorization: Bearer [OAUTH2_TOKEN]" \ // -H "Content-Type: application/json" \ // "https://www.googleapis.com/storage/v1/b/[BUCKET_NAME]?fields=storageClass" http = CkHttpW_Create(); CkHttpW_putAuthToken(http,CkStringBuilderW_getAsString(sbToken)); CkHttpW_SetUrlVar(http,L"bucket_name",L"chilkat-ocean"); url = L"https://www.googleapis.com/storage/v1/b/{$bucket_name}?fields=storageClass"; resp = CkHttpW_PText(http,L"PUT",url,CkJsonObjectW_emit(json),L"utf-8",L"application/json",FALSE,FALSE); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkStringBuilderW_Dispose(sbToken); CkJsonObjectW_Dispose(json); 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); CkJsonObjectW_Dispose(json); CkHttpW_Dispose(http); return; } // On my first try at running this code, I received the following error response: // Response code: 400 // Response body // { // "error": { // "errors": [ // { // "domain": "global", // "reason": "invalid", // "message": "The combination of locationConstraint and storageClass you provided is not supported for your project" // } // ], // "code": 400, // "message": "The combination of locationConstraint and storageClass you provided is not supported for your project" // } // } // // This was because my storage location was a Multi-regional location, and I tried to assign the "regional" storage class, // which is not allowed. wprintf(L"Response code: %d\n",responseCode); wprintf(L"Response body\n"); wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp)); // A response code = 200 indicates success, and the response body contains the JSON // // Response code: 200 // Response body // { // "storageClass": "NEARLINE" // } // CkHttpResponseW_Dispose(resp); CkStringBuilderW_Dispose(sbToken); CkJsonObjectW_Dispose(json); CkHttpW_Dispose(http); } |
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