serde_v8vs

serde support for V8's ValueSerializer format (used by Node.js/Deno's Serialization API) so you can easily send data between Rust & JS without resorting to JSON or non-native encoders/decoders.

Compatibility

Supports format versions 13-16 (Node.js v8.x+ and any Deno version that supports ValueSerializer). Serialization outputs version 15 (Node.js v18+) by default, but this can be configured.

⚠️ This crate does not support host objects, which Node.js/Deno's default serialize function (backed by DefaultSerializer) uses to serialize typed arrays. When serializing in JS, you must create a blank serializer:

// ❌ - won't work with `serde_v8vs`
import { serialize } from 'node:v8';
const bytes = serialize(new Uint8Array([ 1, 2, 3 ]));

// ✅ - will work everywhere
import { Serializer } from 'node:v8';

function compatSerialize(value: any): Uint8Array {
	const serializer = new Serializer();
	serializer.writeHeader();
	serializer.writeValue(value);
	return serializer.releaseBuffer();
}

const bytes = compatSerialize(new Uint8Array([ 1, 2, 3 ]));

Supported external types

• serde_bytes
• jiff
  • Supports jiff::Timestamp, requires Cargo feature
  • v0.2: features = [ "jiff-0_2" ]
• chrono
  • Supports chrono::DateTime<Utc>, requires Cargo feature
  • v0.4: features = [ "chrono-0_4" ]