Amazon AWS S3 file upload. How to set file permissions?

Question

I'm uploading a file using Amazon's AWS SDK (S3), and everything is working fine. Below is my code:

final AWSCredentials credentials = new AWSCredentials() {
    @Override
    public String getAWSAccessKeyId() {
        return "...myAccessKey...";
    }

     @Override
     public String getAWSSecretKey() {
        return "...mySecretKey...";
    }
};

final StaticCredentialsProvider credentialsProvider = new StaticCredentialsProvider(credentials);

final TransferManager transferManager = new TransferManager(credentialsProvider);

final Upload upload = transferManager.upload(Config.AWS_IMAGE_BUCKET, "images/" + file.getName(), file);

Problem is, whenever I upload something like this, the permissions are not set to public, so I can't use them in my app.

How can I set the file permissions from my code so that it's viewable by public?

Thanks!

Answer 1

You need to provide a PutObjectRequest with the ACLs you want when you call upload.

Answer 2

Choose appropriate ACL policy when you put file in to the bucket.

It can be one of the following option:

1) ACL_AUTHENTICATED_READ

Allow read access to authenticated users.

2) ACL_PRIVATE

Allows only private access to the file.

3) ACL_PUBLIC_READ.

Allows public read access to the file.

4) ACL_PUBLIC_READ_WRITE

Allows public read write access to the file when you write files onto the bucket.