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(Unicode C) Upload In-Memory Binary Data to Google Cloud StorageDemonstrates how to upload in-memory binary data to Google Cloud Storage. Note: This example requires Chilkat v9.5.0.69 or later because it uses the http.PBinaryBd method.
#include <C_CkStringBuilderW.h> #include <C_CkHttpW.h> #include <C_CkBinDataW.h> #include <C_CkHttpResponseW.h> void ChilkatSample(void) { HCkStringBuilderW sbToken; HCkHttpW http; const wchar_t *jpgUrl; HCkBinDataW jpgData; BOOL success; 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"); // Send a POST equivalent to this curl command. // The content of the file is contained in the request body. // curl -X POST --data-binary @[OBJECT] \ // -H "Authorization: Bearer [OAUTH2_TOKEN]" \ // -H "Content-Type: [OBJECT_CONTENT_TYPE]" \ // "https://www.googleapis.com/upload/storage/v1/b/[BUCKET_NAME]/o?uploadType=media&name=[OBJECT_NAME]" http = CkHttpW_Create(); // Download a JPG image from the Internet, and then upload this JPG to // a Google Storage bucket. jpgUrl = L"https://www.chilkatsoft.com/images/starfish.jpg"; jpgData = CkBinDataW_Create(); success = CkHttpW_DownloadBd(http,jpgUrl,jpgData); if (success != TRUE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkStringBuilderW_Dispose(sbToken); CkHttpW_Dispose(http); CkBinDataW_Dispose(jpgData); return; } CkHttpW_putAuthToken(http,CkStringBuilderW_getAsString(sbToken)); // Construct a URL to upload to an object named "starfish.jpg" in the "chilkat-ocean" bucket. CkHttpW_SetUrlVar(http,L"bucket_name",L"chilkat-ocean"); CkHttpW_SetUrlVar(http,L"object_name",L"starfish.jpg"); url = L"https://www.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=media&name={$object_name}"; // Note: The PBinaryBd method first appears in Chilkat v9.5.0.69 resp = CkHttpW_PBinaryBd(http,L"POST",url,jpgData,L"image/jpeg",FALSE,FALSE); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkStringBuilderW_Dispose(sbToken); CkHttpW_Dispose(http); CkBinDataW_Dispose(jpgData); 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); CkBinDataW_Dispose(jpgData); return; } wprintf(L"Response code: %d\n",responseCode); wprintf(L"Response body\n"); wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp)); // A successful response looks like this: // Response code: 200 // Response body // { // "kind": "storage#object", // "id": "chilkat-ocean/starfish.jpg/1502670320090292", // "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg", // "name": "starfish.jpg", // "bucket": "chilkat-ocean", // "generation": "1502670320090292", // "metageneration": "1", // "contentType": "image/jpeg", // "timeCreated": "2017-08-14T00:25:20.040Z", // "updated": "2017-08-14T00:25:20.040Z", // "storageClass": "MULTI_REGIONAL", // "timeStorageClassUpdated": "2017-08-14T00:25:20.040Z", // "size": "6229", // "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==", // "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/starfish.jpg?generation=1502670320090292&alt=media", // "crc32c": "9RjgwQ==", // "etag": "CLT5kpW71dUCEAE=" // } CkHttpResponseW_Dispose(resp); CkStringBuilderW_Dispose(sbToken); CkHttpW_Dispose(http); CkBinDataW_Dispose(jpgData); } |
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