Bun SQLite

flextree-bun-sqlite-adapter is a FlexTree adapter based on Bun's built-in bun:sqlite, designed for the Bun runtime with no need to install native dependencies.

Install

bun add flextree-bun-sqlite-adapter
// or
npm install flextree-bun-sqlite-adapter
// or
yarn add flextree-bun-sqlite-adapter
// or
pnpm add flextree-bun-sqlite-adapter

Usage

When constructing a BunSqliteAdapter, you can pass in a database file path, an existing Database instance, or no argument at all (an in-memory database is used by default).

import { FlexTreeManager } from 'flextree'
import BunSqliteAdapter from 'flextree-bun-sqlite-adapter'

// 1. In-memory database (default)
const adapter = new BunSqliteAdapter()
await adapter.open()

// 2. File database
const fileAdapter = new BunSqliteAdapter('tree.db')
await fileAdapter.open()

// 3. Pass in an existing Database instance (no need to call open)
import { Database } from 'bun:sqlite'
const externalAdapter = new BunSqliteAdapter(new Database('tree.db'))

const tree = new FlexTreeManager('tree', { adapter })

Note

• When no argument or a file path is provided, you must call await adapter.open() to open the database; when passing in an existing Database instance, you do not need to open it again.
• The adapter manages transactions internally using explicit BEGIN/COMMIT/ROLLBACK, and reuses the outer transaction on nested calls to guarantee the atomicity of write operations.