import { MailChannels } from "mailchannels-sdk";

const { MAILCHANNELS_API_KEY, DOMAIN, SELECTOR } = process.env;
if (!MAILCHANNELS_API_KEY) throw new Error("Set MAILCHANNELS_API_KEY before running");
if (!DOMAIN) throw new Error("Set DOMAIN (the sending domain, e.g. example.com)");
if (!SELECTOR) throw new Error("Set SELECTOR (e.g. mc1)");

const mailchannels = new MailChannels(MAILCHANNELS_API_KEY);

const { data, error } = await mailchannels.domains.dkim.create(DOMAIN, {
  selector: SELECTOR,
  algorithm: "rsa",
  length: 2048,
});

if (error) {
  console.error("Create DKIM key failed:", error);
  process.exit(1);
}
console.log(data);

import os
import sys

import mailchannels

if not os.environ.get("MAILCHANNELS_API_KEY"):
    sys.exit("Set MAILCHANNELS_API_KEY before running")

domain = os.environ.get("DOMAIN")
selector = os.environ.get("SELECTOR")
if not domain:
    sys.exit("Set DOMAIN (the sending domain, e.g. example.com)")
if not selector:
    sys.exit("Set SELECTOR (e.g. mc1)")

# Create a MailChannels-managed DKIM key pair. The response includes the
# public key and the DNS TXT record to publish.
response = mailchannels.Dkim.create(
    domain,
    selector=selector,
    algorithm="rsa",
    key_length=2048,
)

print(response)

<?php

require_once __DIR__ . '/vendor/autoload.php';

use MailChannels\Client;

$api_key  = getenv('MAILCHANNELS_API_KEY') or exit("Error: MAILCHANNELS_API_KEY is not set\n");
$domain   = getenv('DOMAIN') or exit("Error: DOMAIN is not set\n");
$selector = getenv('SELECTOR') or exit("Error: SELECTOR is not set\n");

$client = new Client(apiKey: $api_key);

// Create a MailChannels-managed DKIM key pair. The response includes the
// public key and the DNS TXT record to publish.
$response = $client->dkim->create(
    domain:    $domain,
    selector:  $selector,
    algorithm: 'rsa',
    keyLength: 2048,
);

print_r($response->toArray());

curl --request POST \
  --url https://api.mailchannels.net/tx/v1/domains/{domain}/dkim-keys \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <x-api-key>' \
  --data '
{
  "selector": "<string>",
  "algorithm": "rsa",
  "key_length": 2048
}
'

{
  "algorithm": "<string>",
  "domain": "<string>",
  "public_key": "<string>",
  "selector": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "dkim_dns_records": [
    {
      "name": "<string>",
      "type": "TXT",
      "value": "<string>"
    }
  ],
  "gracePeriodExpiresAt": "2023-11-07T05:31:56Z",
  "key_length": 123,
  "retiresAt": "2023-11-07T05:31:56Z",
  "status_modified_at": "2023-11-07T05:31:56Z"
}

{
  "errors": [
    "<string>"
  ]
}