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MsgpackCodec

Defined in: src/codec/msgpack.codec.ts:43

MessagePack codec backed by a caller-provided msgpackr Packr instance.

Use this codec when publishing structured payloads larger than roughly 1–2 KB — below that size the default JsonCodec wins on per-call constant overhead. Above it, MessagePack encodes and decodes several times faster and produces smaller wire frames. The format is cross-language, so Node producers and non-Node consumers (Python, Go, Java, Rust, ...) stay interoperable.

Requires installing the optional msgpackr peer dependency:

npm install msgpackr
# or: pnpm add msgpackr

Example​

import { JetstreamModule, MsgpackCodec } from '@horizon-republic/nestjs-jetstream';
import { Packr } from 'msgpackr';

JetstreamModule.forRoot({
  name: 'orders',
  servers: ['nats://localhost:4222'],
  codec: new MsgpackCodec(new Packr()),
});

Implements​

Constructors​

Constructor​

new MsgpackCodec(packr): MsgpackCodec

Defined in: src/codec/msgpack.codec.ts:44

Parameters​

packr​

PackrLike

Returns​

MsgpackCodec

Methods​

decode()​

decode(data): unknown

Defined in: src/codec/msgpack.codec.ts:50

Deserialize binary NATS payload back to application data.

Parameters​

data​

Uint8Array

Returns​

unknown

Implementation of​

Codec.decode

encode()​

encode(data): Uint8Array

Defined in: src/codec/msgpack.codec.ts:46

Serialize application data to binary for NATS transmission.

Parameters​

data​

unknown

Returns​

Uint8Array

Implementation of​

Codec.encode