#[macro_use]
extern crate serde_derive;

#[derive(Debug, Deserialize)]
pub struct SignUpParams<'a> {
    pub username: &'a str,
    pub password: &'a str,
}

fn create(d: &[u8]) -> SignUpParams {
    serde_json::from_slice::<SignUpParams>(d).unwrap()
}

fn main() {
    let s = String::from("{\"username\":\"abc\",\"password\":\"123\"}");
    let _ = create(s.as_bytes());
    println!("Hello, world!");
}