curl --request POST \
  --url https://api.helpdesk.com/v1/tickets/{ticketID}/followers \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "followers": [
    "42e113f9-9353-4e89-9f68-69b92f423b0c"
  ]
}
'

import requests

url = "https://api.helpdesk.com/v1/tickets/{ticketID}/followers"

payload = { "followers": ["42e113f9-9353-4e89-9f68-69b92f423b0c"] }
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({followers: ['42e113f9-9353-4e89-9f68-69b92f423b0c']})
};

fetch('https://api.helpdesk.com/v1/tickets/{ticketID}/followers', 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.helpdesk.com/v1/tickets/{ticketID}/followers",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'followers' => [
        '42e113f9-9353-4e89-9f68-69b92f423b0c'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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.helpdesk.com/v1/tickets/{ticketID}/followers"

	payload := strings.NewReader("{\n  \"followers\": [\n    \"42e113f9-9353-4e89-9f68-69b92f423b0c\"\n  ]\n}")

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

	req.Header.Add("Authorization", "Basic <encoded-value>")
	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://api.helpdesk.com/v1/tickets/{ticketID}/followers")
  .header("Authorization", "Basic <encoded-value>")
  .header("Content-Type", "application/json")
  .body("{\n  \"followers\": [\n    \"42e113f9-9353-4e89-9f68-69b92f423b0c\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.helpdesk.com/v1/tickets/{ticketID}/followers")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Basic <encoded-value>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"followers\": [\n    \"42e113f9-9353-4e89-9f68-69b92f423b0c\"\n  ]\n}"

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

{
  "ID": "42e113f9-9353-4e89-9f68-69b92f423b0c",
  "licenseID": 13381337,
  "createdAt": "2026-06-30T22:02:08.901Z",
  "createdBy": "f56caf69-3f05-4386-9567-fdc909d7ad77",
  "createdByType": "agent",
  "updatedAt": "2026-06-30T22:02:08.901Z",
  "updatedBy": "f56caf69-3f05-4386-9567-fdc909d7ad77",
  "shortID": "IIPZGJ",
  "lastMessageAt": "2026-06-30T22:02:08.901Z",
  "parentTicket": {
    "ID": "42e113f9-9353-4e89-9f68-69b92f423b0c",
    "shortID": "IIPZGJ",
    "subject": "Parent ticket subject"
  },
  "childTickets": [
    {
      "ID": "42e113f9-9353-4e89-9f68-69b92f423b0c",
      "shortID": "IIPZGJ",
      "subject": "Child ticket subject"
    }
  ],
  "status": "open",
  "priority": -10,
  "subject": "Ticket subject",
  "teamIDs": [
    "42e113f9-9353-4e89-9f68-69b92f423b0c"
  ],
  "requester": {
    "email": "",
    "name": ""
  },
  "cc": [
    {
      "email": "cc@email.com",
      "name": "John Client"
    }
  ],
  "tagIDs": [
    "42e113f9-9353-4e89-9f68-69b92f423b0c"
  ],
  "followers": [
    "42e113f9-9353-4e89-9f68-69b92f423b0c"
  ],
  "assignment": {
    "team": {
      "ID": "42e113f9-9353-4e89-9f68-69b92f423b0c",
      "name": ""
    },
    "agent": {
      "ID": "42e113f9-9353-4e89-9f68-69b92f423b0c",
      "name": ""
    }
  },
  "integration": {
    "type": "livechat",
    "referenceType": "",
    "referenceURL": "",
    "referenceID": ""
  },
  "customFields": {
    "order-id": "1234"
  },
  "ratingRequeestSent": true,
  "rating": {
    "rate": "good",
    "comment": "",
    "requestedAt": "2026-06-30T22:02:08.901Z"
  },
  "silo": "tickets",
  "spam": {
    "status": true,
    "reason": "licenseBlackList"
  },
  "source": {
    "type": "api"
  },
  "events": [
    {
      "type": "message"
    }
  ],
  "integrations": {
    "type": "livechat",
    "externalID": ""
  },
  "detectedLanguage": ""
}