Node.js

Count Files in a Remote FTP Directory

Demonstrates the Chilkat Ftp2.GetDirCount method, which returns the number of files and directories in the current remote directory. It takes no arguments; the first call retrieves the listing, and the count reflects the case-insensitive ListPattern filter. A negative return indicates failure.

Background: GetDirCount is the entry point to Chilkat's index-based directory API: its first call fetches the listing for the current directory into a cache, and the returned count establishes the valid index range (0 through count - 1) for the accessor methods that read names, sizes, and attributes. The ListPattern property narrows the listing to matching names before counting, which is how you list, say, only *.html without filtering in your own code.

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function chilkatExample() {

    var success = false;

    //  Demonstrates the Ftp2.GetDirCount method, which returns the number of files and directories in
    //  the current remote directory's listing.  It takes no arguments.  The first call retrieves the
    //  listing; the count reflects the case-insensitive ListPattern filter.

    var ftp = new chilkat.Ftp2();

    ftp.Hostname = "ftp.example.com";
    ftp.Username = "myFtpLogin";

    //  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.
    ftp.Password = "myPassword";

    success = ftp.Connect();
    if (success == false) {
        console.log(ftp.LastErrorText);
        return;
    }

    success = ftp.ChangeRemoteDir("public_html");
    if (success == false) {
        console.log(ftp.LastErrorText);
        return;
    }

    //  Optionally filter the listing with a wildcard pattern.  "*" (the default) matches everything.
    ftp.ListPattern = "*.html";

    var n = ftp.GetDirCount();
    if (n < 0) {
        console.log(ftp.LastErrorText);
        return;
    }

    console.log("Matching entries: " + n);

    //  The count defines the valid index range 0 through n-1 for the indexed accessor methods.
    var i;
    for (i = 0; i <= n - 1; i++) {
        var name = ftp.GetFilename(i);
        console.log(name);
    }

    success = ftp.Disconnect();
    if (success == false) {
        console.log(ftp.LastErrorText);
        return;
    }


}

chilkatExample();