rustHow to convert struct to bytes in Rust

Structs in Rust can be converted to bytes using the serialize and deserialize functions from the serde crate.

use serde::{Serialize, Deserialize};

#[derive(Serialize, Deserialize)]
struct Person {
    name: String,
    age: u8,
}

fn main() {
    let person = Person {
        name: String::from("John"),
        age: 30,
    };

    let bytes = bincode::serialize(&person).unwrap();
    println!("{:?}", bytes);
}

Output example

[8, 74, 111, 104, 110, 0, 0, 0, 30]

Code explanation

1. use serde::{Serialize, Deserialize}; - imports the Serialize and Deserialize traits from the serde crate.
2. #[derive(Serialize, Deserialize)] - derives the Serialize and Deserialize traits for the Person struct.
3. let bytes = bincode::serialize(&person).unwrap(); - serializes the person struct into a byte array using the bincode crate.
4. println!("{:?}", bytes); - prints the byte array.

Helpful links

• serde
• bincode

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