JSON with Serde

Serialize and deserialize JSON with serde_json.

Difficulty

Intermediate

Code

rust

use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, Debug)]
struct Config {
    name: String,
    version: String,
    debug: bool,
}

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = Config {
        name: "myapp".into(),
        version: "1.0.0".into(),
        debug: true,
    };

    let json = serde_json::to_string_pretty(&config)?;
    println!("{}", json);

    let parsed: Config = serde_json::from_str(&json)?;
    println!("{:?}", parsed);

    Ok(())
}

Explanation

Serde serializes/deserializes with #[derive(Serialize, Deserialize)].

Key Concepts

Read the code carefully and understand the data flow
Try modifying the example to see how it changes behavior
Run this code in the Rust Playground

JSON with Serde

JSON with Serde

Difficulty

Code

Explanation

Key Concepts

Related Topics

More Serialization Examples

Serde Basics