Get SHA-256 of a Rust type

sha256.rs

// Following crates are needed:
// sha2, serde, bincode

use serde::Serialize;

#[derive(Serialize)]
struct MyType {
    // some fields
}

impl MyType {
    pub fn to_sha256(&self) -> [u8; 32] {
        let mut hasher = sha2::Sha256::new();
    
        bincode::serialize_into(&mut hasher, self).unwrap();

        hasher.finalize().into()
    }
}