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Installing chDB for NodeJS

Requirements​

Install libchdb:

curl -sL https://lib.chdb.io | bash

Install​

npm i chdb

GitHub repository​

You can find the GitHub repository for the project at chdb-io/chdb-node.

Usage​

You can leverage the power of chdb in your NodeJS applications by importing and using the chdb-node module:

const { query, Session } = require("chdb");

var ret;

// Test standalone query
ret = query("SELECT version(), 'Hello chDB', chdb()", "CSV");
console.log("Standalone Query Result:", ret);

// Test session query
// Create a new session instance
const session = new Session("./chdb-node-tmp");
ret = session.query("SELECT 123", "CSV")
console.log("Session Query Result:", ret);
ret = session.query("CREATE DATABASE IF NOT EXISTS testdb;" +
    "CREATE TABLE IF NOT EXISTS testdb.testtable (id UInt32) ENGINE = MergeTree() ORDER BY id;");

session.query("USE testdb; INSERT INTO testtable VALUES (1), (2), (3);")

ret = session.query("SELECT * FROM testtable;")
console.log("Session Query Result:", ret);

// Clean up the session
session.cleanup();

Build from source​

npm run libchdb
npm install
npm run test