[Node-DuckDB API](./node-duckdb.md) > [Connection](./node-duckdb.connection.md) > [(constructor)](./node-duckdb.connection._constructor_.md) ## Connection.(constructor) Connection constructor. Signature: ```typescript constructor(duckdb: DuckDB); ``` ## Parameters | Parameter | Type | Description | | --------- | --------------------------------- | --------------------------------------------------------- | | duckdb | [DuckDB](./node-duckdb.duckdb.md) | [DuckDB](./node-duckdb.duckdb.md) instance to connect to. | ## Example Initializing a connection: ```ts import { DuckDB } from "node-duckdb"; const db = new DuckDB(); const connection = new Connection(db); ```