How do I use Serde in Rust for JSON serialization?

How do I use Serde in Rust for JSON serialization?

To use Serde for JSON serialization in Rust, first add the serde and serde_json crates to your Cargo.toml.

What are the basic steps to serialize a struct?

Define your struct and derive the Serialize trait. Then, use serde_json::to_string() to serialize it.

Can you show me a code example?

Sure! Here's a simple example:

use serde::{Serialize};

#[derive(Serialize)]
struct Person {
    name: String,
    age: u32,
}

fn main() {
    let person = Person { name: String::from("Alice"), age: 30 };
    let json = serde_json::to_string(&person).unwrap();
    println!("{}", json);
}

What if I want to deserialize JSON back into a struct?

You can derive the Deserialize trait and use serde_json::from_str() to deserialize JSON back into your struct.