About

This package is the Turso embedded database library for JavaScript in Browser.

Turso Database runs in production today at multiple organizations. It has not yet reached 1.0, so as with any database we recommend keeping backups — see the FAQ for where the project stands.

Features

• SQLite compatible: SQLite query language and file format support (status).
• In-process: No network overhead, runs directly in your Node.js process
• TypeScript support: Full TypeScript definitions included

Installation

npm install @tursodatabase/database-wasm

Getting Started

In-Memory Database

import { connect } from '@tursodatabase/database-wasm';

// Create an in-memory database
const db = await connect(':memory:');

// Create a table
await db.exec('CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT, email TEXT)');

// Insert data
const insert = db.prepare('INSERT INTO users (name, email) VALUES (?, ?)');
await insert.run('Alice', '[email protected]');
await insert.run('Bob', '[email protected]');

// Query data
const users = await db.prepare('SELECT * FROM users').all();
console.log(users);
// Output: [
//   { id: 1, name: 'Alice', email: '[email protected]' },
//   { id: 2, name: 'Bob', email: '[email protected]' }
// ]

File-Based Database

import { connect } from '@tursodatabase/database-wasm';

// Create or open a database file
const db = await connect('my-database.db');

// Create a table
await db.exec(`
  CREATE TABLE IF NOT EXISTS posts (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    title TEXT NOT NULL,
    content TEXT,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
  )
`);

// Insert a post
const insertPost = db.prepare('INSERT INTO posts (title, content) VALUES (?, ?)');
const result = await insertPost.run('Hello World', 'This is my first blog post!');

console.log(`Inserted post with ID: ${result.lastInsertRowid}`);

Transactions

import { connect } from '@tursodatabase/database-wasm';

const db = await connect('transactions.db');

// Using transactions for atomic operations
const transaction = db.transaction(async (users) => {
  const insert = db.prepare('INSERT INTO users (name, email) VALUES (?, ?)');
  for (const user of users) {
    await insert.run(user.name, user.email);
  }
});

// Execute transaction
await transaction([
  { name: 'Alice', email: '[email protected]' },
  { name: 'Bob', email: '[email protected]' }
]);

API Reference

For complete API documentation, see JavaScript API Reference.

Related Packages

• The @tursodatabase/serverless package provides a serverless driver with the same API.
• The @tursodatabase/sync package provides bidirectional sync between a local Turso database and Turso Cloud.

License

This project is licensed under the MIT license.

Support

• GitHub Issues
• Documentation
• Discord Community