curl --request GET \
  --url https://api.assembly.com/v1/custom-fields \
  --header 'X-API-KEY: <api-key>'

import requests

url = "https://api.assembly.com/v1/custom-fields"

headers = {"X-API-KEY": "<api-key>"}

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

print(response.text)

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

fetch('https://api.assembly.com/v1/custom-fields', 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.assembly.com/v1/custom-fields",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-KEY: <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://api.assembly.com/v1/custom-fields"

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

	req.Header.Add("X-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.get("https://api.assembly.com/v1/custom-fields")
  .header("X-API-KEY", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.assembly.com/v1/custom-fields")

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

request = Net::HTTP::Get.new(url)
request["X-API-KEY"] = '<api-key>'

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

{
  "data": [
    {
      "entityType": "client",
      "id": "d8e8fca2-dc0f-4f3b-9a2e-1f6f3c2b7a10",
      "key": "accountTier",
      "name": "Account tier",
      "object": "customField",
      "options": [
        {
          "color": "rgba(204, 0, 0, 1)",
          "id": "f1a2b3c4-d5e6-47a8-9b0c-1d2e3f4a5b6c",
          "key": "highPriority",
          "label": "High priority",
          "object": "customFieldOption"
        }
      ],
      "order": 0,
      "type": "multiSelect"
    }
  ],
  "nextToken": "<string>"
}

{
  "code": "<string>",
  "data": "<unknown>",
  "message": "<string>"
}

{
  "code": "<string>",
  "data": "<unknown>",
  "message": "<string>"
}