Write data with the InfluxDB JavaScript client library

The Javascript client library includes the following convenient features for writing data to InfluxDB:

Apply default tags to data points.
Buffer points into batches to optimize data transfer.
Automatically retry requests on failure.
Set an optional HTTP proxy address for your network.

Install the client library and other dependencies.

Instantiate an client. Provide your InfluxDB URL and API token.

Replace the following:
- YOUR_URL: InfluxDB URL
- YOUR_API_TOKEN: InfluxDB API token
To apply one or more to all points, use the useDefaultTags() method. Provide tags as an object of key/value pairs.
Use the Point() constructor to create a point.
1. Call the constructor and provide a .
2. To add one or more tags, chain the tag() method to the constructor. Provide a name and value.
3. To add a field of type , chain the floatField() method to the constructor. Provide a name and value.
```
const point1 = new Point('temperature')
  .tag('sensor_id', 'TLM010')
  .floatField('value', 24)
```

curl --request POST \
  --header "Authorization: Token YOUR_API_TOKEN" \
  --header "Accept: application/json" \
  --data-binary '
    airSensors,sensor_id=TLM0201 temperature=73.97038159354763,humidity=35.23103248356096,co=0.48445310567793615 1630424257000000000
    airSensors,sensor_id=TLM0202 temperature=75.30007505999716,humidity=35.651929918691714,co=0.5141876544505826 1630424257000000000
    '

To run the example from a file, set your InfluxDB environment variables and use node to execute the JavaScript file.

export INFLUX_URL=http://localhost:8086 && \
export INFLUX_TOKEN=YOUR_API_TOKEN && \
export INFLUX_ORG=YOUR_ORG && \
export INFLUX_BUCKET=YOUR_BUCKET && \
node write.js

For information about InfluxDB API response codes, see InfluxDB API Write documentation.

Troubleshoot issues writing data

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Write data with the InfluxDB JavaScript client library

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