Upload image to Google Cloud Storage (Java)

Question

I want to develop a java-application (for pc) which can upload any picture to Google Cloud Storage. Although I have spent my whole evening on searching for a solution, I don't have any clue how to start. Does anyone of you have experience with uploading images to Google Cloud Storage? Are there better alternatives to Google Cloud Storage?

Answer 1

You can public your file, and then the media link of the blob can access anywhere.

https://cloud.google.com/storage/docs/access-control/making-data-public

This is my solution.

try {
    FileInputStream serviceAccount =
            new FileInputStream("firebaseKey/serviceAccountKey.json");

    FirebaseOptions options = new FirebaseOptions.Builder()
            .setCredentials(GoogleCredentials.fromStream(serviceAccount))
            .setDatabaseUrl("https://xxxxx.firebaseio.com")
            .build();
    FirebaseApp fireApp = FirebaseApp.initializeApp(options);

    StorageClient storageClient = StorageClient.getInstance(fireApp);
    InputStream testFile = new FileInputStream(file.getPath());
    String blobString = "NEW_FOLDER/" + "FILE_NAME.jpg";
    Blob blob = storageClient.bucket("xxxxxx.appspot.com")
                    .create(blobString, testFile , Bucket.BlobWriteOption.userProject("xxxxxxx"));
    blob.getStorage().createAcl(blob.getBlobId(), Acl.of(Acl.User.ofAllUsers(), Acl.Role.READER));
    System.out.println(blob.getMediaLink());
} catch (Exception e){
    e.printStackTrace();
}