Function read 

pub fn read<P, K>(cache: P, key: K) -> Result<Vec<u8>>
where
    P: AsRef<Path>,
    K: AsRef<str>,

Reads the entire contents of a cache file synchronously into a bytes vector, looking the data up by key.

Example

use std::io::Read;

fn main() -> cacache_sync::Result<()> {
    let data = cacache_sync::read("./my-cache", "my-key")?;
    Ok(())
}