Programming language: Rust
License: GNU General Public License v3.0 or later
Tags: Serde     Yaml    
Latest version: v0.8.14

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Serde YAML

This crate is a Rust library for using the Serde serialization framework with data in YAML file format.

This library does not reimplement a YAML parser; it uses yaml-rust which is a pure Rust YAML 1.2 implementation.


serde = "1.0"
serde_yaml = "0.8"

Release notes are available under GitHub releases.

Using Serde YAML

API documentation is available in rustdoc form but the general idea is:

use std::collections::BTreeMap;

fn main() -> Result<(), serde_yaml::Error> {
    // You have some type.
    let mut map = BTreeMap::new();
    map.insert("x".to_string(), 1.0);
    map.insert("y".to_string(), 2.0);

    // Serialize it to a YAML string.
    let s = serde_yaml::to_string(&map)?;
    assert_eq!(s, "---\nx: 1.0\ny: 2.0\n");

    // Deserialize it back to a Rust type.
    let deserialized_map: BTreeMap<String, f64> = serde_yaml::from_str(&s)?;
    assert_eq!(map, deserialized_map);

It can also be used with Serde's derive macros to handle structs and enums defined by your program.

serde = { version = "1.0", features = ["derive"] }
serde_yaml = "0.8"
use serde::{Serialize, Deserialize};

#[derive(Debug, PartialEq, Serialize, Deserialize)]
struct Point {
    x: f64,
    y: f64,

fn main() -> Result<(), serde_yaml::Error> {
    let point = Point { x: 1.0, y: 2.0 };

    let s = serde_yaml::to_string(&point)?;
    assert_eq!(s, "---\nx: 1.0\ny: 2.0");

    let deserialized_point: Point = serde_yaml::from_str(&s)?;
    assert_eq!(point, deserialized_point);


Licensed under either of Apache License, Version 2.0 or MIT license at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

*Note that all licence references and agreements mentioned in the serde-yaml README section above are relevant to that project's source code only.