curl --request GET \
  --url https://my.cloudtalk.io/api/calls/index.json \
  --header 'Authorization: Basic <encoded-value>'

import requests

url = "https://my.cloudtalk.io/api/calls/index.json"

headers = {"Authorization": "Basic <encoded-value>"}

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

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Basic <encoded-value>'}};

fetch('https://my.cloudtalk.io/api/calls/index.json', 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://my.cloudtalk.io/api/calls/index.json",
  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: Basic <encoded-value>"
  ],
]);

$response = curl_exec($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://my.cloudtalk.io/api/calls/index.json"

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

	req.Header.Add("Authorization", "Basic <encoded-value>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://my.cloudtalk.io/api/calls/index.json")
  .header("Authorization", "Basic <encoded-value>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://my.cloudtalk.io/api/calls/index.json")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Basic <encoded-value>'

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

{
  "responseData": {
    "itemsCount": 3,
    "pageCount": 1,
    "pageNumber": 1,
    "limit": 3,
    "data": [
      {
        "Cdr": {
          "id": "27",
          "billsec": "0",
          "type": "outgoing",
          "country_code": "421",
          "public_external": 421904247371,
          "public_internal": 421221291400,
          "recorded": true,
          "is_voicemail": false,
          "fax_email": "0",
          "is_redirected": "0",
          "redirected_from": "",
          "is_local": true,
          "user_id": "1234",
          "talking_time": "21",
          "started_at": "2017-10-04T06:33:37.000Z",
          "answered_at": "2017-10-04T06:33:37.000Z",
          "ended_at": "2017-10-04T06:33:49.000Z",
          "waiting_time": 2,
          "wrapup_time": 5,
          "recording_link": "https://analytics.cloudtalk.io/call-details/27"
        },
        "Contact": {
          "id": "1234",
          "name": "Jon Doe",
          "title": "title",
          "company": "First ltd.",
          "industry": "IT",
          "address": "8th Avenue",
          "city": "London",
          "zip": "838298",
          "state": "England",
          "type": "contact",
          "tags": [
            {
              "id": "615",
              "name": "VIP"
            },
            {
              "id": "609",
              "name": "Security"
            }
          ],
          "external_urls": [
            {
              "external_system": "CloudTalk",
              "external_url": "https://my.cloudtalk.io/c/show/1234"
            }
          ],
          "contact_numbers": [
            18884871675
          ],
          "contact_emails": [
            "jon.doe@first.com"
          ],
          "custom_fields": [
            {
              "key": "age",
              "value": "33"
            }
          ],
          "favorite_agent": {
            "id": "1234",
            "firstname": "Max",
            "lastname": "Yellow",
            "fullname": "Max Yellow",
            "email": "max.yellow@cloudtalk.io",
            "language": "en",
            "role": "Admin",
            "status": "online",
            "default_outbound_number": 442012345678,
            "associated_numbers": [
              442012345678
            ],
            "groups": [
              "sales",
              "support"
            ]
          }
        },
        "CallNumber": {
          "id": "12345",
          "internal_name": "Sales support",
          "caller_id_e164": 442012345678,
          "country_code": "44",
          "area_code": "20"
        },
        "BillingCall": {
          "price": "0.000000"
        },
        "Agent": {
          "id": "1234",
          "firstname": "Max",
          "lastname": "Yellow",
          "fullname": "Max Yellow",
          "email": "max.yellow@cloudtalk.io",
          "language": "en",
          "role": "Admin",
          "status": "online",
          "default_outbound_number": 442012345678,
          "associated_numbers": [
            442012345678
          ],
          "groups": [
            "sales",
            "support"
          ]
        },
        "Notes": [
          {
            "id": "23",
            "note": "Call later"
          }
        ],
        "Tags": [
          {
            "id": "123",
            "name": "Missed"
          },
          {
            "id": "124",
            "name": "VIP"
          }
        ]
      }
    ]
  }
}