日本語のREADMEはこちらです: README.ja.md

This library is an implementation of MessagePack for TypeScript and JavaScript, providing a compact and efficient binary serialization format. Learn more about MessagePack at:

https://msgpack.org/

This library serves as a comprehensive reference implementation of MessagePack for JavaScript with a focus on accuracy, compatibility, interoperability, and performance.

import { MessagePack } from "https://code4fukui.github.io/MessagePack/MessagePack.js";

const object = {
  nil: null,
  integer: 1,
  float: Math.PI,
  string: "Hello, world!",
  binary: Uint8Array.from([1, 2, 3]),
  array: [10, 20, 30],
  map: { foo: "bar" },
  timestampExt: new Date(),
};

const encoded = MessagePack.encode(object);
console.log(encoded);

const obj = MessagePack.decode(encoded);
console.log(obj);

It encodes data into a single MessagePack-encoded object, and returns a byte array as Uint8Array.

It decodes buffer that includes a MessagePack-encoded object, and returns the decoded object typed unknown.

It decodes buffer that includes multiple MessagePack-encoded objects, and returns decoded objects as a generator.

It decodes a MessagePack-encoded object from a readable stream asynchronously.

It decodes an array of MessagePack-encoded objects from a readable stream asynchronously.

It decodes multiple MessagePack-encoded objects from a readable stream asynchronously.

This library supports extension types, which can be used to encode and decode custom data types.

This library provides a way to decode a large array of floating point numbers more efficiently.

You can decode a Blob instance that contains MessagePack-encoded data.

This library follows the MessagePack specification.

This library requires the following environments:

• ECMA-262
• Node.js
• TypeScript Compiler / Type Definitions

This library has been benchmarked against other MessagePack implementations for JavaScript.

This library is available through the following distribution channels:

• NPM / npmjs.com
• CDN / unpkg.com

This library can be used in Deno environments.

This library can be used in Bun environments.

This library is actively maintained, with the following practices:

• Testing
• Continuous Integration
• Release Engineering
• Updating Dependencies

MIT License — see LICENSE.