Serde JSON Serialization Library

Documentation

This crate is a Rust library for parsing and generating the JSON (JavaScript Object Notation) file format. It is built upon Serde, a high performance generic serialization framework.

Installation

This crate works with Cargo and can be found on crates.io with a Cargo.toml like:

[dependencies]
serde = "0.8"serde_json = "0.8"

Using Serde JSON

serde_json is very simple to use out of the box:

externcrate serde;externcrate serde_json;use serde_json::Map;fnmain(){letmut map = Map::new();
map.insert("x".to_string(),1.0);
map.insert("y".to_string(),2.0);let s = serde_json::to_string(&map).unwrap();assert_eq!(s,"{\"x\":1.0,\"y\":2.0}");let deserialized_map:Map<String,f64> = serde_json::from_str(&s).unwrap();assert_eq!(map, deserialized_map);}

It also can be used with Serde's automatic serialization library, serde_macros. First add this to Cargo.toml:

[dependencies]
...serde = "0.8"serde_macros = "0.8"...

Then run:

#![feature(custom_derive, plugin)]#![plugin(serde_macros)]externcrate serde;externcrate serde_json;#[derive(Debug,PartialEq,Serialize,Deserialize)]structPoint{x:f64,y:f64,}fnmain(){let point = Point{x:1.0,y:2.0};let s = serde_json::to_string(&point).unwrap();assert_eq!(s,"{\"x\":1.0,\"y\":2.0}");let deserialized_point:Point = serde_json::from_str(&s).unwrap();assert_eq!(point, deserialized_point);}