curl --request POST \
  --url https://api.hellotracks.com/v1/forms/attachments \
  --header 'API-Key: <api-key>' \
  --header 'Content-Type: multipart/form-data' \
  --form 'file=@example-file;type=application/octet-stream' \
  --form 'field=<string>' \
  --form 'filename=<string>' \
  --form bucketId=forms

import requests

url = "https://api.hellotracks.com/v1/forms/attachments"

files = { "file": ("example-file", open("example-file", "rb"), "application/octet-stream") }
payload = {
    "field": "<string>",
    "filename": "<string>",
    "bucketId": "forms"
}
headers = {"API-Key": "<api-key>"}

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

print(response.text)

const form = new FormData();
form.append('file', '<string>');
form.append('field', '<string>');
form.append('filename', '<string>');
form.append('bucketId', 'forms');

const options = {method: 'POST', headers: {'API-Key': '<api-key>'}};

options.body = form;

fetch('https://api.hellotracks.com/v1/forms/attachments', 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.hellotracks.com/v1/forms/attachments",
  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=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"field\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"filename\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bucketId\"\r\n\r\nforms\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "API-Key: <api-key>",
    "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.hellotracks.com/v1/forms/attachments"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"field\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"filename\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bucketId\"\r\n\r\nforms\r\n-----011000010111000001101001--")

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

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

	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.hellotracks.com/v1/forms/attachments")
  .header("API-Key", "<api-key>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"field\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"filename\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bucketId\"\r\n\r\nforms\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.hellotracks.com/v1/forms/attachments")

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

request = Net::HTTP::Post.new(url)
request["API-Key"] = '<api-key>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"field\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"filename\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bucketId\"\r\n\r\nforms\r\n-----011000010111000001101001--"

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

{
  "data": {
    "field": "Photo",
    "filename": "site.jpg",
    "path": "/img/c0c0c0/forms/0b1c-site.jpg",
    "url": "https://api.hellotracks.com/img/c0c0c0/forms/0b1c-site.jpg",
    "value": "[{\"url\":\"https://api.hellotracks.com/img/c0c0c0/forms/0b1c-site.jpg\",\"name\":\"site.jpg\"}]"
  },
  "error": null,
  "meta": {
    "path": "/v1/forms/attachments",
    "method": "POST"
  }
}

{
  "data": null,
  "error": {
    "code": "invalid_request",
    "message": "date must be YYYY-MM-DD"
  },
  "meta": {
    "path": "/jobs",
    "method": "GET"
  }
}

{
  "data": null,
  "error": {
    "code": "invalid_api_key",
    "message": "Invalid Hellotracks API key."
  },
  "meta": {
    "path": "/jobs",
    "method": "GET"
  }
}

{
  "data": null,
  "error": {
    "code": "forbidden",
    "message": "No permission."
  },
  "meta": {
    "path": "/jobs",
    "method": "GET"
  }
}

{
  "data": null,
  "error": {
    "code": "throttled",
    "message": "Too many requests."
  },
  "meta": {
    "path": "/jobs",
    "method": "GET"
  }
}

{
  "data": null,
  "error": {
    "code": "internal_error",
    "message": "Hellotracks API is temporarily unavailable."
  },
  "meta": {
    "path": "/jobs",
    "method": "GET"
  }
}