Zig

FTP Bandwidth Throttle for Downloads

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Demonstrates the Chilkat FTP2 download bandwidth throttling property : BandwidthThrottleDown. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    const ftp = try chilkat.Ftp2.init();
    defer ftp.deinit();

    ftp.setHostname("ftp.example.com");
    ftp.setUsername("login");
    ftp.setPassword("password");

    // To use FTP bandwidth throttling, set the BandwidthThrottleDown
    // property to a maximum desired bytes/second:
    // This example limits the download to 50K per second.
    ftp.setBandwidthThrottleDown(50000);

    // The default data transfer mode is "Active" as opposed to "Passive".

    // Connect and login to the FTP server.
    ftp.connect() catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    // Change to the remote directory where the file is located.
    // This step is only necessary if the file is not in the root directory
    // for the FTP account.
    ftp.changeRemoteDir("junk") catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    // Download a file.
    const local_filename = "hamlet.xml";
    const remote_filename = "hamlet.xml";

    ftp.getFile(remote_filename, local_filename) catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    try ftp.disconnect();

    std.debug.print("File Downloaded!\n", .{});
}