Simple object serialization and deserialization in Rust with serde.


serde = {version = "1.0.106", features = ["derive"]}
serde_json = "1.0.51"

use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize)]
struct Person {
    name: String,
    age: u8,
    gender: Option<char>,
    aliases: Vec<String>,
    deceased: bool,

fn main() {
    let bilbo = Person {
        name: "Bilbo Baggins".to_string(),
        age: 111,
        gender: Some('m'),
        aliases: vec!["Thief".to_string()],
        deceased: false,

    let bilbo_json =
        r#"{"name":"Bilbo Baggins","age":111,"gender":"m","aliases":["Thief"],"deceased":false}"#;

    let serialized = serde_json::to_string(&bilbo).unwrap();

    assert_eq!(bilbo_json, serialized);

What’s even cooler is that enum deserialization can be untagged, meaning

Serde will try to match the data against each variant in order and the first one that deserializes successfully is the one returned.