curl --request PUT \
  --url https://api.hakumedia.ai/v2/ad-items/custom-html/{id} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Example Ad Item",
  "height": 400,
  "width": 650,
  "location": "",
  "tracking_pixel": "https://url.com",
  "tracking_pixels": [
    {
      "id": 27419,
      "url": "https://url1.com"
    },
    {
      "id": 27420,
      "url": "https://url2.com"
    }
  ],
  "metadata": {
    "mobile_only": "false",
    "TNR": "15"
  },
  "trusted_redirect_domains": [
    "example.com",
    "*.example.com",
    "tel:342682346"
  ],
  "custom_html": "<div> ... </div>",
  "html_content_below": "<img />",
  "expand_horizontal_direction": "left",
  "expand_vertical_direction": "none"
}
'

const options = {
  method: 'PUT',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Example Ad Item',
    height: 400,
    width: 650,
    location: '',
    tracking_pixel: 'https://url.com',
    tracking_pixels: [{id: 27419, url: 'https://url1.com'}, {id: 27420, url: 'https://url2.com'}],
    metadata: {mobile_only: 'false', TNR: '15'},
    trusted_redirect_domains: ['example.com', '*.example.com', 'tel:342682346'],
    custom_html: '<div> ... </div>',
    html_content_below: '<img />',
    expand_horizontal_direction: 'left',
    expand_vertical_direction: 'none'
  })
};

fetch('https://api.hakumedia.ai/v2/ad-items/custom-html/{id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.hakumedia.ai/v2/ad-items/custom-html/{id}"

payload = {
    "name": "Example Ad Item",
    "height": 400,
    "width": 650,
    "location": "",
    "tracking_pixel": "https://url.com",
    "tracking_pixels": [
        {
            "id": 27419,
            "url": "https://url1.com"
        },
        {
            "id": 27420,
            "url": "https://url2.com"
        }
    ],
    "metadata": {
        "mobile_only": "false",
        "TNR": "15"
    },
    "trusted_redirect_domains": ["example.com", "*.example.com", "tel:342682346"],
    "custom_html": "<div> ... </div>",
    "html_content_below": "<img />",
    "expand_horizontal_direction": "left",
    "expand_vertical_direction": "none"
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.hakumedia.ai/v2/ad-items/custom-html/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'name' => 'Example Ad Item',
    'height' => 400,
    'width' => 650,
    'location' => '',
    'tracking_pixel' => 'https://url.com',
    'tracking_pixels' => [
        [
                'id' => 27419,
                'url' => 'https://url1.com'
        ],
        [
                'id' => 27420,
                'url' => 'https://url2.com'
        ]
    ],
    'metadata' => [
        'mobile_only' => 'false',
        'TNR' => '15'
    ],
    'trusted_redirect_domains' => [
        'example.com',
        '*.example.com',
        'tel:342682346'
    ],
    'custom_html' => '<div> ... </div>',
    'html_content_below' => '<img />',
    'expand_horizontal_direction' => 'left',
    'expand_vertical_direction' => 'none'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

{
  "name": "Example Ad Item",
  "height": 400,
  "width": 650,
  "location": "",
  "tracking_pixel": "https://url.com",
  "tracking_pixels": [
    {
      "id": 27419,
      "url": "https://url1.com"
    },
    {
      "id": 27420,
      "url": "https://url2.com"
    }
  ],
  "metadata": {
    "mobile_only": "false",
    "TNR": "15"
  },
  "trusted_redirect_domains": [
    "example.com",
    "*.example.com",
    "tel:342682346"
  ],
  "is_self_serve": false,
  "custom_html": "<div> ... </div>",
  "html_content_below": "<img />",
  "expand_horizontal_direction": "left",
  "expand_vertical_direction": "none",
  "created_date": "2019-04-26 14:55:31",
  "last_modified": "2019-04-26 14:55:39",
  "object": "custom_html_ad_item",
  "self": "/v2/ad-items/custom-html/985124765",
  "id": 985124765
}