transfer file from GCS bucket to SFTP server in java

Question

I am able to read files from GCS bucket, but all the libraries like jsch which does file transfer to SFTP server look for a file path, instead of the file in memory. I don't want to write the file I read from GCS to a disk, How do I transfer the file in memory to SFTP?

Answer 1

I assume you want to upload in-memory data. JSch actually has loads of ChannelSftp.put methods overloads that can upload in-memory data.

The basic one is with use of InputStream:

public void put(InputStream src, String dst) throws SftpException

The other options is with use of OutputStream:

public OutputStream put(String dst) throws SftpException