rust scraping

main.rs

extern crate curl;

use curl::easy::Easy;
use std::error::Error;
use std::io::prelude::*;
use std::fs::File;
use std::path::Path;

// Print a web page onto stdout
fn main() {
	for i in 500..99951{
		let p =format!("zips/{:0>5}.txt",i);
		println!("{}",p);
		let path = Path::new(&p);
		let display = path.display();

		// Open a file in write-only mode, returns `io::Result<File>`
		let mut file = File::create(&path).unwrap();

		let url = format!("http://blah?ZIP={:0>5}",i);
		println!("{}",url);
		let mut buf = Vec::new();
		let mut handle = Easy::new();
		handle.url(&url).unwrap();

		let mut transfer = handle.transfer();
		transfer.write_function(|data| {
			buf.extend_from_slice(data);
		file.write_all(&buf).unwrap();
			Ok(data.len())
		}).unwrap();
		transfer.perform().unwrap();
	}
}