Chilkat Examples

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Node.js Examples

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(Node.js) SFTP Sync Download Tree w/ Must-Match Filename Constraints

Demonstrates how synchronize a directory tree in the download direction, but only download files matching a set of wildcard filenames.

Note: This example requires Chilkat v9.5.0.76 or greater.

Install Chilkat for Node.js and Electron using npm at

Chilkat npm packages for Node.js

Chilkat npm packages for Electron

on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node11-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node11-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node11-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node11-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node11-linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('@chilkat/ck-node11-macosx');
}

function chilkatExample() {

    var sftp = new chilkat.SFtp();

    var success = sftp.Connect("my-ssh-server.com",22);
    if (success == true) {
        success = sftp.AuthenticatePw("mySshLogin","mySshPassword");
    }

    if (success == true) {
        success = sftp.InitializeSftp();
    }

    if (success !== true) {
        console.log(sftp.LastErrorText);
        return;
    }

    // Possible synchronization modes are:
    // mode=0: Download all files
    // mode=1: Download all files that do not exist on the local filesystem.
    // mode=2: Download newer or non-existant files.
    // mode=3: Download only newer files. If a file does not already exist on the local filesystem, it is not downloaded from the server.
    // mode=5: Download only missing files or files with size differences.
    // mode=6: Same as mode 5, but also download newer files.

    // This example will download all files, but only those files having filenames
    // that match *.gif and *.eml

    // Imagine our remote directory tree has these files and directories:

    // 	accentedLatin1.txt
    // 	accentedUtf8.txt
    // 	alice.key
    // 	anter_cert.pem
    // 	chiliPepper.gif
    // 	helloWorld.pdf
    // 	abc/chiliPepper.gif
    // 	abc/ghk/
    // 	data/chiliPepper.gif
    // 	data/xyz/dkimHtmlBody.txt
    // 	data/xyz/dkimVerifyTest.eml
    // 	data/xyz/emailForCreateDsn.eml
    // 	text/frenchUtf8.txt
    // 	text/helloWorld.txt
    // 	text/PolishEmailBody.txt
    // 	text/something/

    // Indicate that we only want to create auto-create local directories (if needed)
    // for the files that are actually downloaded.  If SyncCreateAllLocalDirs remains
    // true, then the corresponding local directory is created for each remote directory
    // traversed regardless of whether files within are downloaded.
    sftp.SyncCreateAllLocalDirs = false;

    sftp.SyncMustMatch = "*.eml; *.gif";

    var remoteDir = "syncDownloadTest/someDir";
    var localDir = "qa_output";
    var mode = 0;
    var recursive = true;
    success = sftp.SyncTreeDownload(remoteDir,localDir,mode,recursive);
    if (success !== true) {
        console.log(sftp.LastErrorText);
        return;
    }

    // The following files were downloaded:

    // chiliPepper.gif
    // abc/chiliPepper.gif
    // data/chiliPepper.gif
    // data/xyz/dkimVerifyTest.eml
    // data/xyz/emailForCreateDsn.eml

    console.log("Success.");

}

chilkatExample();

 

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