curl --request PATCH \
  --url https://api.enrik.ai/v1/signal-definitions/{signalDefinitionId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "name": "Exhibits at a trade fair",
  "expectedRevision": 4
}
'

import requests

url = "https://api.enrik.ai/v1/signal-definitions/{signalDefinitionId}"

payload = {
    "name": "Exhibits at a trade fair",
    "expectedRevision": 4
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({name: 'Exhibits at a trade fair', expectedRevision: 4})
};

fetch('https://api.enrik.ai/v1/signal-definitions/{signalDefinitionId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.enrik.ai/v1/signal-definitions/{signalDefinitionId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'Exhibits at a trade fair',
    'expectedRevision' => 4
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.enrik.ai/v1/signal-definitions/{signalDefinitionId}"

	payload := strings.NewReader("{\n  \"name\": \"Exhibits at a trade fair\",\n  \"expectedRevision\": 4\n}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")
	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.patch("https://api.enrik.ai/v1/signal-definitions/{signalDefinitionId}")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Exhibits at a trade fair\",\n  \"expectedRevision\": 4\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.enrik.ai/v1/signal-definitions/{signalDefinitionId}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Patch.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Exhibits at a trade fair\",\n  \"expectedRevision\": 4\n}"

response = http.request(request)
puts response.read_body

{
  "id": "0199a1b2-0000-7000-8000-00000000f201",
  "name": "Exhibits at a trade fair",
  "description": "The company exhibits at a trade fair in its industry.",
  "lifecycle": "active",
  "currentDraftVersionId": null,
  "currentPublishedVersionId": "0199a1b2-0000-7000-8000-00000000f211",
  "revision": 5,
  "createdBy": "0199a1b2-0000-7000-8000-00000000c001",
  "updatedBy": "0199a1b2-0000-7000-8000-00000000c001",
  "createdAt": "2026-09-10T08:00:00.000Z",
  "updatedAt": "2026-09-12T08:00:00.000Z"
}

{
  "error": {
    "code": "malformed_json",
    "message": "Bad Request",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "Unauthorized",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "insufficient_scope",
    "message": "Forbidden",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "not_found",
    "message": "Not Found",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "conflict",
    "message": "Conflict",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "payload_too_large",
    "message": "Payload Too Large",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "unsupported_media_type",
    "message": "Unsupported Media Type",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "validation_error",
    "message": "Unprocessable Entity",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "rate_limited",
    "message": "Too many requests",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "internal_error",
    "message": "Internal Server Error",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "service_unavailable",
    "message": "Service Unavailable",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}

{
  "error": {
    "code": "not_found",
    "message": "Not found",
    "requestId": "5b1d3c1e-8d6f-4f2a-9a57-3a9b1f2c7d10"
  }
}