1 use flate2::write::GzEncoder;
2 use flate2::{read, Compression};
3 use std::io;
4 use std::io::prelude::*;
5 
6 // Compress a sample string and print it after transformation.
main()7 fn main() {
8     let mut e = GzEncoder::new(Vec::new(), Compression::default());
9     e.write_all(b"Hello World").unwrap();
10     let bytes = e.finish().unwrap();
11     println!("{}", decode_reader(bytes).unwrap());
12 }
13 
14 // Uncompresses a Gz Encoded vector of bytes and returns a string or error
15 // Here &[u8] implements Read
decode_reader(bytes: Vec<u8>) -> io::Result<String>16 fn decode_reader(bytes: Vec<u8>) -> io::Result<String> {
17     let mut gz = read::GzDecoder::new(&bytes[..]);
18     let mut s = String::new();
19     gz.read_to_string(&mut s)?;
20     Ok(s)
21 }
22