Files
lancedb/nodejs
Weston Pace c269524b2f feat!: refactor ConnectionInternal into a Database trait (#2067)
This opens up the door for more custom database implementations than the
two we have today. The biggest change should be inivisble:
`ConnectionInternal` has been renamed to `Database`, made public, and
refactored

However, there are a few breaking changes. `data_storage_version` and
`enable_v2_manifest_paths` have been moved from options on
`create_table` to options for the database which are now set via
`storage_options`.

Before:
```
db = connect(uri)
tbl = db.create_table("my_table", data, data_storage_version="legacy", enable_v2_manifest_paths=True)
```

After:
```
db = connect(uri, storage_options={
  "new_table_enable_v2_manifest_paths": "true",
  "new_table_data_storage_version": "legacy"
})
tbl = db.create_table("my_table", data)
```

BREAKING CHANGE: the data_storage_version, enable_v2_manifest_paths
options have moved from options to create_table to storage_options.
BREAKING CHANGE: the use_legacy_format option has been removed,
data_storage_version has replaced it for some time now
2025-02-04 14:35:14 -08:00
..
2025-01-29 08:27:07 -08:00
2025-02-01 01:22:22 +00:00
2025-01-30 16:06:06 -08:00

LanceDB JavaScript SDK

A JavaScript library for LanceDB.

Installation

npm install @lancedb/lancedb

This will download the appropriate native library for your platform. We currently support:

  • Linux (x86_64 and aarch64)
  • MacOS (Intel and ARM/M1/M2)
  • Windows (x86_64 only)

We do not yet support musl-based Linux (such as Alpine Linux) or aarch64 Windows.

Usage

Basic Example

import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("data/sample-lancedb");
const table = await db.createTable("my_table", [
  { id: 1, vector: [0.1, 1.0], item: "foo", price: 10.0 },
  { id: 2, vector: [3.9, 0.5], item: "bar", price: 20.0 },
]);
const results = await table.vectorSearch([0.1, 0.3]).limit(20).toArray();
console.log(results);

The quickstart contains a more complete example.

Development

See CONTRIBUTING.md for information on how to contribute to LanceDB.