C

Upload In-Memory Binary Data to Google Cloud Storage

See more Google Cloud Storage Examples

Demonstrates how to upload in-memory binary data to Google Cloud Storage. C

#include <C_CkStringBuilder.h>
#include <C_CkHttp.h>
#include <C_CkBinData.h>
#include <C_CkHttpResponse.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkStringBuilder sbToken;
    HCkHttp http;
    const char *jpgUrl;
    HCkBinData jpgData;
    const char *url;
    HCkHttpResponse resp;
    int responseCode;

    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"

    // 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 = CkStringBuilder_Create();
    CkStringBuilder_LoadFile(sbToken,"qa_data/tokens/googleCloudStorageAccessToken.txt","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 = CkHttp_Create();

    // Download a JPG image from the Internet, and then upload this JPG to
    // a Google Storage bucket.
    jpgUrl = "https://www.chilkatsoft.com/images/starfish.jpg";

    jpgData = CkBinData_Create();
    success = CkHttp_DownloadBd(http,jpgUrl,jpgData);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkStringBuilder_Dispose(sbToken);
        CkHttp_Dispose(http);
        CkBinData_Dispose(jpgData);
        return;
    }

    CkHttp_putAuthToken(http,CkStringBuilder_getAsString(sbToken));

    // Construct a URL to upload to an object named "starfish.jpg" in the "chilkat-ocean" bucket.
    CkHttp_SetUrlVar(http,"bucket_name","chilkat-ocean");
    CkHttp_SetUrlVar(http,"object_name","starfish.jpg");
    url = "https://www.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=media&name={$object_name}";

    resp = CkHttpResponse_Create();
    success = CkHttp_HttpBd(http,"POST",url,jpgData,"image/jpeg",resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkStringBuilder_Dispose(sbToken);
        CkHttp_Dispose(http);
        CkBinData_Dispose(jpgData);
        CkHttpResponse_Dispose(resp);
        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");
        CkStringBuilder_Dispose(sbToken);
        CkHttp_Dispose(http);
        CkBinData_Dispose(jpgData);
        CkHttpResponse_Dispose(resp);
        return;
    }

    printf("Response code: %d\n",responseCode);
    printf("Response body\n");
    printf("%s\n",CkHttpResponse_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="
    // }


    CkStringBuilder_Dispose(sbToken);
    CkHttp_Dispose(http);
    CkBinData_Dispose(jpgData);
    CkHttpResponse_Dispose(resp);

    }