InfluxDB Docs

slack.endpoint() function

The slack.endpoint() function sends a message to Slack that includes output data.

Function type: Output

import "slack"

  url: "",
  token: "mySuPerSecRetTokEn"



The Slack API URL. Defaults to

If using a Slack webhook, you’ll receive a Slack webhook URL when you create an incoming webhook.

Data type: String


The Slack API token used to interact with Slack. Defaults to "".

A token is only required if using the Slack chat.postMessage API.

Data type: String


slack.endpoint is a factory function that outputs another function. The output function requires a mapFn parameter.


A function that builds the object used to generate the POST request. Requires an r parameter.

You should rarely need to override the default mapFn parameter. To see the default mapFn value or for insight into possible overrides, view the slack.endpoint() source code.

Data type: Function

The returned object must include the following fields:

  • username
  • channel
  • workspace
  • text
  • iconEmoji
  • color

For more information, see slack.message()


Send critical statuses to a Slack endpoint
import "slack"
import "influxdata/influxdb/secrets"

token = secrets.get(key: "SLACK_TOKEN")
e = slack.endpoint(token: token)

crit_statuses = from(bucket: "example-bucket")
  |> range(start: -1m)
  |> filter(fn: (r) => r._measurement == "statuses" and status == "crit")

  |> e(mapFn: (r) => ({
      username: r.username,
      workspace: r.workspace,
      text: r.text,
      iconEmoji: r.iconEmoji,
      color: r.color,

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