Download file using ureq with progress bar

download.rs

use indicatif::{ProgressBar, ProgressStyle};
use std::fs::File;
use std::io;

const DOWNLOAD_TEMPLATE: &str =
    "{msg} {spinner:.green} [{elapsed_precise}] [{wide_bar:.cyan/blue}] {bytes}/{total_bytes} ({eta})";

pub fn download_file(url: &str) -> io::Result<()> {
    let resp = ureq::get(&url).call().unwrap();

    let length: u64 = resp.header("Content-Length").unwrap().parse().unwrap();

    let bar = ProgressBar::new(!0);
    bar.set_message("Downloading");
    bar.set_style(
        ProgressStyle::with_template(DOWNLOAD_TEMPLATE)
            .unwrap()
            .progress_chars("##-"),
    );
    bar.set_length(length);

    let mut f = File::create("video.mp4").unwrap();
    io::copy(&mut bar.wrap_read(resp.into_reader()), &mut f).unwrap();
    Ok(())
}

fn main() {
    let url =
        "https://test-videos.co.uk/vids/bigbuckbunny/mp4/h264/1080/Big_Buck_Bunny_1080_10s_1MB.mp4";
    download_file(url).unwrap();
}