Documentation

Convert results to JSON

This page documents an earlier version of InfluxDB OSS. InfluxDB 3 Core is the latest stable version.

This example uses NOAA water sample data.

Send each record to a URL endpoint using the HTTP POST method. This example uses json.encode() to convert a value into JSON bytes, then uses http.post() to send them to a URL endpoint.

The following query:

  • Uses filter() to filter the average_temperature measurement.
  • Uses mean() to calculate the average value from results.
  • Uses map() to create a new column, jsonStr, and build a JSON object using column values from the query. It then byte-encodes the JSON object and stores it as a string in the jsonStr column.
  • Uses http.post() to send the jsonStr value from each record to an HTTP endpoint.
import "http"
import "json"

from(bucket: "noaa")
    |> filter(fn: (r) => r._measurement == "average_temperature")
    |> mean()
    |> map(fn: (r) => ({r with jsonStr: string(v: json.encode(v: {"location": r.location, "mean": r._value}))}))
    |> map(
        fn: (r) => ({
            r with
            status_code: http.post(
                url: "http://somehost.com/",
                headers: {x: "a", y: "b"},
                data: bytes(v: r.jsonStr)
            )
        })
    )
  • Copy
  • Fill window

Was this page helpful?

Thank you for your feedback!


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.

Read more

New in InfluxDB 3.2

Key enhancements in InfluxDB 3.2 and the InfluxDB 3 Explorer UI is now generally available.

See the Blog Post

InfluxDB 3.2 is now available for both Core and Enterprise, bringing the general availability of InfluxDB 3 Explorer, a new UI that simplifies how you query, explore, and visualize data. On top of that, InfluxDB 3.2 includes a wide range of performance improvements, feature updates, and bug fixes including automated data retention and more.

For more information, check out: