N/sftp Module
sftp.Connection
Object Description: Represents a connection to the account on the remote FTP server.
Supported Script Types: All script types For more information, see SuiteScript 2.0 Script Types.
Module: N/sftp Module
Methods and Properties: Connection Object Members
Since: 2016.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=sftp.Connection

// Code Example 1

//Add additional code ...

// establish connection to the FTP server

var objConnection = sftp.createConnection({

    username: 'username',

    keyId: 'custkey1',

    url: 'host.somewhere.com',

    directory: 'username/wheres/my/file'

    hostKey: myHostKey

});

//...

//Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4618502733.html