---
title: Node.js JavaScript client library
description: Use the InfluxDB Node.js JavaScript client library to interact with InfluxDB.
url: https://docs.influxdata.com/influxdb/v2/api-guide/client-libraries/nodejs/
estimated_tokens: 575
product: InfluxDB OSS v2
version: v2
---

# Node.js JavaScript client library

This page documents an earlier version of InfluxDB OSS. [InfluxDB 3 Core](/influxdb3/core/) is the latest stable version.

#### API token hashing is enabled by default in InfluxDB OSS 2.9.0

Stronger token security: tokens are stored as hashes on disk, so a copy of the database file doesn’t expose usable tokens. Existing tokens are hashed on first startup and the original strings can’t be recovered afterward — **capture any plaintext tokens you still need before you upgrade**.

For more information, see [Token hashing](/influxdb/v2/admin/tokens/#token-hashing).

Use the [InfluxDB JavaScript client library](https://github.com/influxdata/influxdb-client-js) to integrate InfluxDB into your Node.js application. In this guide, you’ll start a Node.js project from scratch and code some simple API operations.

### [Install the InfluxDB JavaScript client library](/influxdb/v2/api-guide/client-libraries/nodejs/install/)

Install the Node.js JavaScript client library to interact with the InfluxDB v2 API.

### [Write data with the InfluxDB JavaScript client library](/influxdb/v2/api-guide/client-libraries/nodejs/write/)

Use the JavaScript client library to write data with the InfluxDB API in Node.js.

### [Query data with the InfluxDB JavaScript client library](/influxdb/v2/api-guide/client-libraries/nodejs/query/)

Use the JavaScript client library to query data with the InfluxDB API in Node.js.

For more examples and information, see the [JavaScript client on GitHub](https://github.com/influxdata/influxdb-client-js).

[client libraries](/influxdb/v2/tags/client-libraries/) [JavaScript](/influxdb/v2/tags/javascript/)