curl --request POST \
  --url https://{tenant}.chronosphere.io/api/v1/config/derived-metrics \
  --header 'API-Token: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{}'

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://{tenant}.chronosphere.io/api/v1/config/derived-metrics"

	payload := strings.NewReader("{}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("API-Token", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://{tenant}.chronosphere.io/api/v1/config/derived-metrics")
  .header("API-Token", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();

const options = {
  method: 'POST',
  headers: {'API-Token': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({})
};

fetch('https://{tenant}.chronosphere.io/api/v1/config/derived-metrics', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{tenant}.chronosphere.io/api/v1/config/derived-metrics"

payload = {}
headers = {
    "API-Token": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "derived_metric": {
    "metric_name": "cpu_usage:instance",
    "name": "<string>",
    "queries": [
      {
        "query": {
          "prometheus_expr": "cpu_usage{$service, $instance} / sum(cpu_usage{$service})",
          "variables": [
            {
              "default_prometheus_selector": "service=~\".*\"",
              "name": "service"
            }
          ]
        },
        "selector": {
          "labels": [
            {
              "name": "<string>",
              "type": "EXACT",
              "value": "<string>"
            }
          ]
        }
      }
    ],
    "created_at": "2023-11-07T05:31:56Z",
    "description": "<string>",
    "slug": "<string>",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{
  "message": "<string>"
}

{}