Waddler 🦆

Website • Documentation • Twitter • by Drizzle Team

Waddler - is a thin SQL client wrapper with modern API inspired by postgresjs and based on ES6 Tagged Template Strings.

You don't need to learn an api for db clients; just use the sql template tag for everything

Waddler is our vision of a modern, all-in-one client for any database dialect. It doesn't perform any specific mappings to or from a database, doesn't handle complex query building, and doesn't parse queries. Waddler simply unifies communication with your database using any client you choose - whether it's a simple TCP connection or an HTTP-based DB client.

We support all the dialects and drivers that Drizzle supports

Supported Clients:

• PostgreSQL: node-postgres, postgres-js, pglite, neon-http, neon-serverless, vercel-postgres, xata-http, bun-sql
• MySQL: mysql2, tidb-serverless, planetscale-serverless
• SQLite: better-sqlite3, bun-sqlite, d1, libsql, durable-sqlite, op-sqlite, expo-sqlite
• DuckDB: duckdb, duckdb-neo, duckdb-wasm (browser support)
• ClickHouse: clickhouse
• Other: gel

import { waddler } from "waddler/node-postgres";
import { waddler } from "waddler/mysql2";
import { waddler } from "waddler/libsql";
import { waddler } from "waddler/duckdb-wasm";
import { waddler } from "waddler/duckdb-neo";
import { waddler } from "waddler/duckdb";

// Node.js/Server environments
const sql = waddler({ dbUrl: process.env.DB_URL });
const sql = waddler({ url: "./database.db" });

// Browser environments (DuckDB WASM)
const sql = waddler({ 
  wasmUrl: '/path/to/duckdb.wasm',
  workerUrl: '/path/to/worker.js'
});

// promisified SQL template API
const result = await sql`select * from users`;

// Easy to use values param
const values = sql.values([["Dan", "[email protected]", 25]]);
await sql`insert into "users" ("name", "email", "age") values ${values}`;
// insert into "users" ("name", "email", "age") values ('Dan', '[email protected]', 25);

// no SQL injections
await sql`select * from users where id = ${10}`; // <-- converts to $1 and [10] params
  
// waddler supports types
await sql<{ id: number, name: string }>`select * from users`;

// streaming and chunking
const stream = sql`select * from users`.stream();
for await (const row of stream) {
  console.log(row);
}

const chunked = sql`select * from users`.chunked(2);
for await (const chunk of chunked) {
  console.log(chunk);
}

You can enable logger with all the metadata coming from drivers

import { Logger } from 'waddler';
import { waddler } from 'waddler/...'; // driver specific
class MyLogger implements Logger {
  logQuery(query: string, params: unknown[], metadata?: any): void {
    // metadata will contain all the extra fields coming from the specific db driver
    console.log({ query, params, metadata });
  }
}
const db = waddler({ logger: new MyLogger() });

For more information you can check the docs