v0.7.0: Node.js/TypeScript bindings via napi-rs

Node.js / TypeScript bindings

Native Rust performance in JavaScript via napi-rs. All I/O operations are async (libuv thread pool). Sync variants available for scripts/CLI.

Install

npm install qvdrs

Usage

import { readQvd, saveQvd, JsExistsIndex } from 'qvdrs'

const table = await readQvd('data.qvd')
console.log(table.numRows, table.columns)
await saveQvd(table, 'copy.qvd')

API

• readQvd / readQvdSync — read QVD files
• saveQvd / saveQvdSync — write QVD files
• JsQvdTable — full table API (get, filter, head, toJson, symbols, normalize, concatenate, concatenatePk)
• JsExistsIndex — O(1) EXISTS() lookups
• readQvdFiltered — streaming filtered reads
• concatenateQvd / concatenatePkQvd — file-level merge operations

Platforms

Package	Platform
qvdrs-win32-x64-msvc	Windows x64
qvdrs-linux-x64-gnu	Linux x64
qvdrs-linux-arm64-gnu	Linux arm64
qvdrs-darwin-x64	macOS Intel
qvdrs-darwin-arm64	macOS Apple Silicon

Requirements

• Node.js 22+
• TypeScript types included

Testing

• 27 unit tests + 418 QVD file roundtrip tests — all passing