Node.js
Node.js
Get a Remote File's Last-Modified Time
See more SFTP Examples
Demonstrates the Chilkat SFtp.GetFileLastModifiedStr method, which returns a remote file's last-modified date and time. The arguments are the remote path (or handle), whether symbolic links are followed, and whether the first argument is a handle.
Background: The last-modified time is the workhorse timestamp — it updates whenever a file's contents change and is what incremental-sync logic compares to decide whether a file needs re-transferring. It is the most reliably supported of the three across servers and filesystems, which is why timestamp-based sync keys off it.
Chilkat Node.js Downloads
NODEJS_PRELUDE
function chilkatExample() {
var success = false;
// Demonstrates the SFtp.GetFileLastModifiedStr method, which returns a remote file's last-modified
// date and time. The 1st argument is the remote path (or handle), the 2nd selects whether
// symbolic links are followed, and the 3rd indicates whether the 1st argument is a handle.
var sftp = new chilkat.SFtp();
// Connect, authenticate, and initialize the SFTP subsystem.
var port = 22;
success = sftp.Connect("sftp.example.com",port);
if (success == false) {
console.log(sftp.LastErrorText);
return;
}
// Normally you would not hard-code the password in source. You should instead obtain it
// from an interactive prompt, environment variable, or a secrets vault.
var password = "mySshPassword";
success = sftp.AuthenticatePw("mySshLogin",password);
if (success == false) {
console.log(sftp.LastErrorText);
return;
}
success = sftp.InitializeSftp();
if (success == false) {
console.log(sftp.LastErrorText);
return;
}
// The 2nd argument (bFollowLinks) selects whether a symbolic link is followed to its target.
// The 3rd argument (bIsHandle) is false here because the 1st argument is a path, not an
// open handle.
var bFollowLinks = true;
var bIsHandle = false;
var lastModified = sftp.GetFileLastModifiedStr("subdir/report.pdf",bFollowLinks,bIsHandle);
if (sftp.LastMethodSuccess == false) {
console.log(sftp.LastErrorText);
return;
}
console.log("Last modified: " + lastModified);
sftp.Disconnect();
}
chilkatExample();