---
title: Install the InfluxDB JavaScript client library
seotitle: Install the InfluxDB Node.js JavaScript client library
description: >
  Install the JavaScript client library to interact with the InfluxDB API in Node.js.
menu:
  influxdb_2_0:
    name: Install
    parent: Node.js
influxdb/v2.0/tags: [client libraries, JavaScript]
weight: 100
aliases:
  - /influxdb/v2.0/reference/api/client-libraries/nodejs/install
---


## Install Node.js 

1. Install [Node.js](https://nodejs.org/en/download/package-manager/).

2. Ensure that InfluxDB is running and you can connect to it.
   For information about what URL to use to connect to InfluxDB OSS or InfluxDB Cloud, see [InfluxDB URLs](/influxdb/v2.0/reference/urls/).

3. Start a new Node.js project.
   The `npm` package manager is included with Node.js.

   ```sh
   npm init -y influx-node-app
   ```

## Install TypeScript

Many of the client library examples use [TypeScript](https://www.typescriptlang.org/). Follow these steps to initialize the TypeScript project.

1. Install TypeScript and type definitions for Node.js.

   ```sh
   npm i -g typescript && npm i --save-dev @types/node
   ```
2. Create a TypeScript configuration with default values.

   ```sh
   tsc --init
   ```
3. Run the TypeScript compiler. To recompile your code automatically as you make changes, pass the `watch` flag to the compiler.

   ```sh
   tsc -w -p
   ```

## Install dependencies

The JavaScript client library contains two packages: `@influxdata/influxdb-client` and `@influxdata/influxdb-client-apis`.
Add both as dependencies of your project.

1. Open a new terminal window and install  `@influxdata/influxdb-client` for querying and writing data:

   ```sh
   npm install --save @influxdata/influxdb-client
   ```

3. Install `@influxdata/influxdb-client-apis` for access to the InfluxDB management APIs:

   ```sh
   npm install --save @influxdata/influxdb-client-apis
   ```

## Next steps

Once you've installed the Javascript client library, you're ready to [write data](/influxdb/v2.0/api-guide/client-libraries/nodejs/write.md) to InfluxDB or [get started](#get-started-with-examples) with other examples from the client library.

## Get started with examples 

{{% note %}}
The client examples include an [`env`](https://github.com/influxdata/influxdb-client-js/blob/master/examples/env.js) module for accessing your InfluxDB properties from environment variables or from `env.js`.
The examples use these properties to interact with the InfluxDB API.
{{% /note %}}

1. Set environment variables or update `env.js` with your InfluxDB [bucket](/influxdb/v2.0/organizations/buckets/), [organization](/influxdb/v2.0/organizations/), [token](/influxdb/v2.0/security/tokens/), and [url](/influxdb/v2.0/urls).

   ```sh
   export INFLUX_URL=http://localhost:8086
   export INFLUX_TOKEN=YOUR_API_TOKEN
   export INFLUX_ORG=YOUR_ORG
   export INFLUX_BUCKET=YOUR_BUCKET
   ```
   Replace the following:
   - *`YOUR_API_TOKEN`*: InfluxDB API token
   - *`YOUR_ORG`*: InfluxDB organization ID
   - *`YOUR_BUCKET`*: InfluxDB bucket name

2. Run an example script.

   ```sh
   query.ts
   ```
{{% api/v2dot0/nodejs/learn-more %}}