curl --request GET \
  --url https://api.cal.com/v2/bookings/{bookingUid}/attendees \
  --header 'Authorization: <authorization>' \
  --header 'cal-api-version: <cal-api-version>'

import requests

url = "https://api.cal.com/v2/bookings/{bookingUid}/attendees"

headers = {
    "cal-api-version": "<cal-api-version>",
    "Authorization": "<authorization>"
}

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

print(response.text)

const options = {
  method: 'GET',
  headers: {'cal-api-version': '<cal-api-version>', Authorization: '<authorization>'}
};

fetch('https://api.cal.com/v2/bookings/{bookingUid}/attendees', 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.cal.com/v2/bookings/{bookingUid}/attendees",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "cal-api-version: <cal-api-version>"
  ],
]);

$response = curl_exec($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.cal.com/v2/bookings/{bookingUid}/attendees"

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

	req.Header.Add("cal-api-version", "<cal-api-version>")
	req.Header.Add("Authorization", "<authorization>")

	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.cal.com/v2/bookings/{bookingUid}/attendees")
  .header("cal-api-version", "<cal-api-version>")
  .header("Authorization", "<authorization>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.cal.com/v2/bookings/{bookingUid}/attendees")

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

request = Net::HTTP::Get.new(url)
request["cal-api-version"] = '<cal-api-version>'
request["Authorization"] = '<authorization>'

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

{
  "status": "success",
  "data": [
    {
      "name": "John Doe",
      "email": "john@example.com",
      "displayEmail": "john@example.com",
      "timeZone": "America/New_York",
      "absent": false,
      "id": 251,
      "language": "en",
      "phoneNumber": "+1234567890"
    }
  ]
}