How to Serialize and Deserialize Enums with Serde

Add the serde derive macros and #[serde] attributes to your enum to control how it is serialized to and deserialized from formats like JSON.

use serde::{Deserialize, Serialize};

#[derive(Debug, Default, Clone, Copy, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "snake_case")]
pub enum Mode {
    #[default]
    Default,
    Simple,
}

This setup allows Mode to be converted to/from JSON strings like "default" or "simple" automatically.

Serializing and deserializing enums with Serde tells the Rust compiler how to turn your custom list of options into text files or network messages and back again. It's like giving a translator a dictionary so it knows exactly how to say "Default" or "Simple" in another language without getting confused.