Delete a file inside a folder in Google cloud storage - google-cloud-storage

Question

My wish is very simple and basic. However, I can't find any working/clear answer for it :D
I want to know how to delete a file inside a folder in Google Cloud storage.
If let's say I have a bucket name of xxxx.appspot.com and I have a folder inside called images and I have an image inside this folder (E.g. 123.jpg) which I want to delete.
This is the code I wrote, however it didn't delete it:
String bucketName = "xxxx.appspot.com";
GcsService gcsService = GcsServiceFactory.createGcsService();
gcsService.delete(new GcsFilename(bucketName,"images/123.jpg"));
Did I miss anything?
Thanks in Advance!

Answer 1

You can find some code samples in the documentation. In short, what you want to achieve can be done in Java using a couple of lines of code, given that you have the right permissions:
BlobId b = BlobId.of(bucketName, blobName);
boolean deleted = storage.delete(b);

Answer 2

The correct answer as of 2022 is the following:
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;
public class DeleteObject {
public static void deleteObject(String projectId, String bucketName, String objectName) {
// The ID of your GCP project
// String projectId = "your-project-id";
// The ID of your GCS bucket
// String bucketName = "your-unique-bucket-name";
// The ID of your GCS object
// String objectName = "your-object-name";
Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
storage.delete(bucketName, objectName);
System.out.println("Object " + objectName + " was deleted from " + bucketName);
}
}
Example taken from this page