ScyllaDB TypeScript Driver

High-performance ScyllaDB and Apache Cassandra CQL driver for Node.js, built on the official ScyllaDB Rust driver via NAPI.

Requires Node.js 18+.

Installation

npm install scylladb-driver

npm installs the correct native binary for your platform automatically:

Platform	npm package
Linux x64 (glibc)	scylladb-driver-linux-x64-gnu
macOS x64	scylladb-driver-darwin-x64
Windows x64	scylladb-driver-win32-x64-msvc

Quick start

import { Cluster } from "scylladb-driver";

const cluster = new Cluster({
  nodes: ["127.0.0.1:9042"],
  localDatacenter: "datacenter1",
});

const session = await cluster.connect();

const result = await session.execute("SELECT release FROM system.local");
console.log(result.rows[0]);

TypeScript helpers

Optional typed helpers are available from the secondary entry point:

import { Cluster, getFirstRow } from "scylladb-driver/ts";

const session = await new Cluster({ nodes: ["127.0.0.1:9042"] }).connect();
const row = getFirstRow(await session.execute("SELECT release FROM system.local"));

Examples

Prepared statements

const prepared = await session.prepare(
  "INSERT INTO users (id, name) VALUES (?, ?)"
);
await prepared.execute([1, "Alice"]);

Paging

let token: Buffer | null = null;
do {
  const page = await session.querySinglePage(
    "SELECT * FROM large_table",
    null,
    100,
    token
  );
  console.log(page.rows);
  token = page.nextPageToken ?? null;
} while (token);

Batch statements

const batch = session.batch("logged");
batch.add({ query: "INSERT INTO t (id, val) VALUES (?, ?)", params: [1, "a"] });
batch.add({ query: "INSERT INTO t (id, val) VALUES (?, ?)", params: [2, "b"] });
await batch.execute();

Configuration

const cluster = new Cluster({
  nodes: ["10.0.0.1:9042", "10.0.0.2:9042"],
  username: "admin",
  password: "secret",
  compression: "lz4",
  defaultKeyspace: "my_app",
  localDatacenter: "us-east-1",
  connectionTimeoutMs: 5000,
  executionProfile: {
    consistency: "local_quorum",
    requestTimeoutMs: 10000,
    retryPolicy: "default",
  },
});

Features

• Async connect and query API
• Shard-aware routing (via the Rust driver)
• Prepared, batch, and paged queries
• Lightweight transactions (wasApplied on results)
• Execution profiles, retry policies, speculative execution
• TLS, compression (LZ4, Snappy), authentication
• Schema metadata, metrics, query tracing, execution history
• CQL scalar and collection types (lists, maps, sets, tuples, UDTs, blobs)

For advanced topics (load balancing, retry policies, data types, tracing), see the Rust driver documentation. This package mirrors that API surface for Node.js.

Contributing

See CONTRIBUTING.md.

References

• ScyllaDB Rust Driver docs
• ScyllaDB CQL reference
• ScyllaDB drivers overview

License

MIT