Java Requires Chilkat v11.0.0+

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. Chilkat2 Java

import com.chilkatsoft.chilkat2.BinData;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.HttpResponse;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // 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..
        StringBuilder sbToken = new StringBuilder();
        sbToken.loadFile("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 http = new Http();

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

        BinData jpgData = new BinData();
        try {
            http.downloadBd(jpgUrl, jpgData);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        http.setAuthToken(sbToken.getAsString());

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

        HttpResponse resp = new HttpResponse();
        try {
            http.httpBd("POST", url, jpgData, "image/jpeg", resp);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int responseCode = resp.getStatusCode();
        if (responseCode == 401) {
            System.out.println(resp.getBodyStr());
            System.out.println("If invalid credentials, then it is likely the access token expired.");
            System.out.println("Your app should automatically fetch a new access token and re-try.");
            return;
        }

        System.out.println("Response code: " + responseCode);
        System.out.println("Response body");
        System.out.println(resp.getBodyStr());

        // 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="
        // }
    }
}