curl --request POST \
  --url https://api.sellauth.com/v1/customer-dashboard/tickets/{ticketId}/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form 'content=Still nothing on my end.' \
  --form 'images=<string>' \
  --form images.items='@example-file'

import requests

url = "https://api.sellauth.com/v1/customer-dashboard/tickets/{ticketId}/messages"

files = { "images.items": ("example-file", open("example-file", "rb")) }
payload = {
    "content": "Still nothing on my end.",
    "images": "<string>"
}
headers = {"Authorization": "Bearer <token>"}

response = requests.post(url, data=payload, files=files, headers=headers)

print(response.text)

const form = new FormData();
form.append('content', 'Still nothing on my end.');
form.append('images', '<string>');
form.append('images.items', '{
  "fileName": "example-file"
}');

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

options.body = form;

fetch('https://api.sellauth.com/v1/customer-dashboard/tickets/{ticketId}/messages', 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.sellauth.com/v1/customer-dashboard/tickets/{ticketId}/messages",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"content\"\r\n\r\nStill nothing on my end.\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n  \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($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.sellauth.com/v1/customer-dashboard/tickets/{ticketId}/messages"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"content\"\r\n\r\nStill nothing on my end.\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n  \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--")

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

	req.Header.Add("Authorization", "Bearer <token>")

	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.sellauth.com/v1/customer-dashboard/tickets/{ticketId}/messages")
  .header("Authorization", "Bearer <token>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"content\"\r\n\r\nStill nothing on my end.\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n  \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sellauth.com/v1/customer-dashboard/tickets/{ticketId}/messages")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"content\"\r\n\r\nStill nothing on my end.\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"images.items\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n{\r\n  \"fileName\": \"example-file\"\r\n}\r\n-----011000010111000001101001--"

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

{
  "id": "c3d4e5f6-a7b8-4c9d-8e0f-1a2b3c4d5e6f",
  "sender_type": "shop_customer",
  "sender_id": 1,
  "content": "Still nothing on my end.",
  "created_at": "2026-07-23T12:05:00.000000Z",
  "sender": {
    "id": 1,
    "email": "customer@sellauth.test"
  },
  "attachments": [
    {
      "id": "6d1f0a3e-2b7c-4f1e-9a2d-8c3b4e5f6a7b",
      "url": "https://static.mysellauth.com/storage/ticket_attachments/6d1f0a3e-2b7c-4f1e-9a2d-8c3b4e5f6a7b.webp",
      "width": 1280,
      "height": 720,
      "size": 182034
    }
  ]
}

{
  "message": "This ticket has been closed."
}

{
  "message": "No query results."
}

{
  "message": "Image processing is temporarily unavailable. Please try again."
}