curl --request GET \
  --url https://cloudapi.mailercloud.com/v1/campaign/{id} \
  --header 'Authorization: <api-key>'

import requests

url = "https://cloudapi.mailercloud.com/v1/campaign/{id}"

headers = {"Authorization": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: '<api-key>'}};

fetch('https://cloudapi.mailercloud.com/v1/campaign/{id}', 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://cloudapi.mailercloud.com/v1/campaign/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-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"
	"net/http"
	"io"
)

func main() {

	url := "https://cloudapi.mailercloud.com/v1/campaign/{id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "<api-key>")

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

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

	fmt.Println(string(body))

}

{
  "data": {
    "0": {
      "blacklisted_domains": {},
      "broken_links": {},
      "conversion_tracking": {},
      "created_date": "2021-04-27 11:31:04",
      "email_preheader": "Save more on your Home & Kitchen shopping",
      "finish_date": "2021-04-27 15:07:02",
      "html": "",
      "id": "BBBghIFI",
      "modified_date": "2021-04-27 11:44:15",
      "name": "Offer Of The Day",
      "pause_rules": {},
      "permission_reminder": "",
      "plain_text": "",
      "recepiant": {
        "lists": "Subscriber list",
        "lists_contact_count": 100000,
        "segments": "",
        "segments_contact_count": 0,
        "total_lists": 1
      },
      "reply_email": "sender@yourdomain.com",
      "report_abuse": true,
      "report_summary": {
        "abuse": 0,
        "abuse_percentage": "0.00",
        "clicks": 0,
        "clicks_percentage": "0.00",
        "conversions": 0,
        "conversions_percentage": "0.00",
        "delivered": 100000,
        "delivered_percentage": "100.00",
        "hard_bounce": 0,
        "hard_bounce_percentage": "0.00",
        "open_percentage": "15.55",
        "04\"": null,
        "status": "Finished",
        "opens": 15548,
        "queue": 0,
        "queue_percentage": "0.00",
        "queued_total": 100000,
        "sent": 100000,
        "sent_percentage": "100.00",
        "soft_bounce": 0,
        "soft_bounce_percentage": "0.00",
        "spam_complaints_count": 0,
        "spam_complaints_percentage": "0.00",
        "unsubscribe": 307,
        "unsubscribe_percentage": "1.97"
      },
      "rule": {
        "contacts_order": "first",
        "limit": ""
      },
      "scheduled_date": {
        "date": "2021-04-27 17:14:15",
        "timezone": "Asia/Kolkata"
      },
      "sender": {
        "sender_email": "sender@yourdomain.com",
        "sender_name": "Sender Name Shan"
      },
      "start_date": "2021-04-27 11:47:04",
      "status": "Finished",
      "status_change_date": "2021-04-27 15:07:02",
      "status_change_message": "",
      "subject": "Amazon offers",
      "tag": "Amazon offers",
      "time_rule": {},
      "type": "Normal campaign"
    }
  }
}

{
  "errors": [
    {
      "field": "",
      "message": "Authorization failed"
    }
  ]
}

{
  "error": {
    "field": "string",
    "message": "string"
  }
}