XtraJson

XtraJson offers a flexible solution to transform objects into JSON-serializable representations and back. Unlike other solutions, such as superjson, XtraJson efficiently handles transformations without unnecessarily duplicating objects.

Features

• Out-of-the-box support for undefined, Buffer, Date, BigInt.
• Ability to handle any other type using custom transformers.
• Faster and more efficient than superjson.

Why XtraJson?

While libraries like SuperJSON create a copy of any object, even if it doesn't need to be transformed, XtraJson ensures optimized and efficient transformations.

Usage

Basic Setup

import XtraJson from 'xtrajson';

const xjs = new XtraJson();

Registering Custom Transformers

xjs.register({
    name: "my custom transformer",
    key: "c", // key should be unique and as short as possible
    isApplicable(value: unknown): value is MyClass {
        // Define when this transformer should be used
    },
    serialize(value) {
        // Convert your custom type to a JSON-serializable format
    },
    deserialize(value) {
        // Convert the JSON-serializable format back to your custom type
    }
});

Serialization & Deserialization

const data = xjs.serialize(payload); // Convert to a JSON-serializable object
const json = xjs.stringify(payload); // Convert to a JSON string

// Alternate methods using built-in JSON methods
const jsonAlt = JSON.stringify(payload, xjs.replacer); // Using XtraJson as a replacer
const resultAlt = JSON.parse(payload, xjs.reviver); // Using XtraJson as a reviver

const result = xjs.deserialize(data); // Convert back from a JSON-serializable object
const resultStr = xjs.parse(json); // Convert back from a JSON string