Documentation

InfluxDB v2 JavaScript client library for web browsers

Limited availability

InfluxDB Clustered is currently only available to a limited group of InfluxData customers. If interested in being part of the limited access group, please contact the InfluxData Sales team.

Use InfluxDB v3 clients

The /api/v2/query API endpoint and associated tooling, such as InfluxDB v2 client libraries and the influx CLI, can’t query an InfluxDB cluster.

InfluxDB v3 client libraries and Flight SQL clients are available that integrate with your code to write and query data stored in InfluxDB Clustered.

InfluxDB v3 supports many different tools for writing and querying data. Compare tools you can use to interact with InfluxDB Clustered.

Use the InfluxDB v2 JavaScript client library in browsers and front-end clients to write data to an InfluxDB Clustered database.

This library supports both front-end and server-side environments and provides the following distributions:

  • ECMAScript modules (ESM) and CommonJS modules (CJS)
  • Bundled ESM
  • Bundled UMD

This guide presumes some familiarity with JavaScript, browser environments, and InfluxDB. If you’re just getting started with InfluxDB, see Get started with InfluxDB.

Tokens in production applications

The examples below configure the authentication token in source code for demonstration purposes only. To protect your data, take the following steps:

  1. Avoid sending tokens to public clients such as web browsers and mobile apps. Regard any application secret sent to client devices as public and not confidential.

  2. Use short-lived, read-only tokens whenever possible to prevent unauthorized writes and deletes.

Before you begin

  1. Install Node.js to serve your front-end app.

  2. Ensure that InfluxDB is running and you can connect to it. For information about what URL to use to connect to your InfluxDB cluster, contact your InfluxData account representative.

Use with module bundlers

If you use a module bundler like Webpack or Parcel, install @influxdata/influxdb-client-browser.

Use bundled distributions with browsers and module loaders

  1. Configure InfluxDB properties for your script.

    <script>
      window.INFLUX_ENV = {
        url: 'https://cluster-host.com',
        token: 'DATABASE_TOKEN'
      }
    </script>
    
  2. Import modules from the latest client library browser distribution. @influxdata/influxdb-client-browser exports bundled ESM and UMD syntaxes.

    <script type="module">
      import {InfluxDB, Point} from 'https://unpkg.com/@influxdata/influxdb-client-browser/dist/index.browser.mjs'
    
      const influxDB = new InfluxDB({INFLUX_ENV.url, INFLUX_ENV.token})
    </script>
    
    <script src="https://unpkg.com/@influxdata/influxdb-client-browser"></script>
    <script>
      const Influx = window['@influxdata/influxdb-client']
    
      const InfluxDB = Influx.InfluxDB
      const influxDB = new InfluxDB({INFLUX_ENV.url, INFLUX_ENV.token})
    </script>
    

After you’ve imported the client library, you’re ready to get started writing data with the example app.

Get started with the example app

The client library includes an example browser app that writes to your InfluxDB instance.

  1. Clone the influxdb-client-js repo.

  2. Navigate to the examples directory:

    cd examples
    
  3. Update ./env_browser.js with your InfluxDB cluster URL, your database name as bucket, an arbitrary string as org, and your database token.

  4. Run the following command to start the application at http://localhost:3001/examples/index.html

    npm run browser
    

    index.html loads the env_browser.js configuration, the client library ESM modules, and the application in your browser.

For more examples, see how to write data using the JavaScript client library for Node.js.


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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following: