PacketDecorator Library

This library provides a simple and efficient way to handle serialization and deserialization of binary packets. It allows you to create custom packet structures with various fields and data types using TypeScript decorators.

Features

• Easy-to-use decorators for defining custom packet fields
• Automatic serialization and deserialization of packet data
• Support for multiple data types, including custom types
• Built on top of the Reflect Metadata API

Example Usage

import { PacketDecorator, BYTE, BUFFER } from 'packet-decorator'

class MyPacket extends PacketDecorator {
    @BYTE
    public messageType!: number

    @BUFFER(() => 4)
    public payload!: Buffer
}

const myPacket = new MyPacket()
myPacket.messageType = 1
myPacket.payload = Buffer.from([0x01, 0x02, 0x03, 0x04])

const serialized = myPacket.toBuffer()

const deserializedPacket = MyPacket.fromBuffer(serialized)

Installation

To install the library, you can use your preferred package manager:

npm install packet-decorator

or

yarn add packet-decorator

Dependencies

• reflect-metadata: This library uses the Reflect Metadata API, so you need to import 'reflect-metadata' at the top of your entry file.

API

• PacketDecorator: Base class for creating custom packet structures.
• createFieldMetadata(options: Omit<PacketFieldInfo, 'key'>): A utility function for creating custom field metadata decorators.
• BUFFER(length: (instance: any) => number): A decorator for defining buffer fields with a dynamic length.
• BYTE: A decorator for defining byte (UInt8) fields.

Contributing

If you have any suggestions or improvements, feel free to open an issue or submit a pull request on the project's GitHub repository.

License

This library is released under the MIT License.