Documentation

Query with the InfluxDB API

This page documents an earlier version of InfluxDB. InfluxDB v2.6 is the latest stable version. View this page in the v2.6 documentation.

The InfluxDB v2 API provides a programmatic interface for all interactions with InfluxDB. To query InfluxDB 2.4, do one of the following:

In your request, set the following:

  • Your organization via the org or orgID URL parameters.
  • Authorization header to Token + your API token.
  • Accept header to application/csv.
  • Content-type header to application/vnd.flux (Flux only) or application/json (Flux or InfluxQL).
  • Query in Flux or InfluxQL with the request’s raw data.

Use gzip to compress the query response

To compress the query response, set the Accept-Encoding header to gzip. This saves network bandwidth, but increases server-side load.

We recommend only using gzip compression on responses that are larger than 1.4 KB. If the response is smaller than 1.4 KB, gzip encoding will always return a 1.4 KB response, despite the uncompressed response size. 1500 bytes (~1.4 KB) is the maximum transmission unit (MTU) size for the public network and is the largest packet size allowed at the network layer.

Flux - Example query request

Below is an example curl request that sends a Flux query to InfluxDB 2.4:

curl --request POST \
  http://localhost:8086/api/v2/query?orgID=INFLUX_ORG_ID  \
  --header 'Authorization: Token INFLUX_TOKEN' \
  --header 'Accept: application/csv' \
  --header 'Content-type: application/vnd.flux' \
  --data 'from(bucket:"example-bucket")
        |> range(start: -12h)
        |> filter(fn: (r) => r._measurement == "example-measurement")
        |> aggregateWindow(every: 1h, fn: mean)'
curl --request POST \
  http://localhost:8086/api/v2/query?orgID=INFLUX_ORG_ID \
  --header 'Authorization: Token INFLUX_TOKEN' \
  --header 'Accept: application/csv' \
  --header 'Content-type: application/vnd.flux' \
  --header 'Accept-Encoding: gzip' \
  --data 'from(bucket:"example-bucket")
        |> range(start: -12h)
        |> filter(fn: (r) => r._measurement == "example-measurement")
        |> aggregateWindow(every: 1h, fn: mean)'

InfluxQL - Example query request

Below is an example curl request that sends an InfluxQL query to InfluxDB 2.4:

curl --request -G http://localhost:8086/query?orgID=INFLUX_ORG_ID&database=MyDB&retention_policy=MyRP \
  --header 'Authorization: Token INFLUX_TOKEN' \
  --header 'Accept: application/csv' \
  --header 'Content-type: application/json' \
  --data-urlencode "q=SELECT used_percent FROM example-db.example-rp.example-measurement WHERE host=host1"
curl --request -G http://localhost:8086/query?orgID=INFLUX_ORG_ID&database=MyDB&retention_policy=MyRP \
  --header 'Authorization: Token INFLUX_TOKEN' \
  --header 'Accept: application/csv' \
  --header 'Content-type: application/json' \
  --header 'Accept-Encoding: gzip' \
  --data-urlencode "q=SELECT used_percent FROM example-db.example-rp.example-measurement WHERE host=host1"

InfluxDB returns the query results in annotated CSV.


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Set your InfluxDB URL

Linux Package Signing Key Rotation

All signed InfluxData Linux packages have been resigned with an updated key. If using Linux, you may need to update your package configuration to continue to download and verify InfluxData software packages.

For more information, see the Linux Package Signing Key Rotation blog post.

InfluxDB Cloud backed by InfluxDB IOx

All InfluxDB Cloud organizations created on or after January 31, 2023 are backed by the new InfluxDB IOx storage engine. Check the right column of your InfluxDB Cloud organization homepage to see which InfluxDB storage engine you’re using.

If powered by IOx, this is the correct documentation.

If powered by TSM, see the TSM-based InfluxDB Cloud documentation.

InfluxDB Cloud backed by InfluxDB TSM

All InfluxDB Cloud organizations created on or after January 31, 2023 are backed by the new InfluxDB IOx storage engine which enables nearly unlimited series cardinality and SQL query support. Check the right column of your InfluxDB Cloud organization homepage to see which InfluxDB storage engine you’re using.

If powered by TSM, this is the correct documentation.

If powered by IOx, see the IOx-based InfluxDB Cloud documentation.

State of the InfluxDB Cloud (IOx) documentation

The new documentation for InfluxDB Cloud backed by InfluxDB IOx is a work in progress. We are adding new information and content almost daily. Thank you for your patience!

If there is specific information you’re looking for, please submit a documentation issue.