curl --request GET \
  --url http://localhost:3000/user/my/newsletters \
  --header 'Authorization: Basic <encoded-value>'

import requests

url = "http://localhost:3000/user/my/newsletters"

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

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

print(response.text)

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

fetch('http://localhost:3000/user/my/newsletters', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "3000",
  CURLOPT_URL => "http://localhost:3000/user/my/newsletters",
  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 := "http://localhost:3000/user/my/newsletters"

	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("http://localhost:3000/user/my/newsletters")
  .header("Authorization", "Basic <encoded-value>")
  .asString();

require 'uri'
require 'net/http'

url = URI("http://localhost:3000/user/my/newsletters")

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

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

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

{
  "code": "SUCCESS",
  "message": "Success get list newsletter",
  "results": {
    "data": [
      {
        "id": "120363144038483540@newsletter",
        "state": {
          "type": "active"
        },
        "thread_metadata": {
          "creation_time": "1688746895",
          "invite": "0029Va4K0PZ5a245NkngBA2M",
          "name": {
            "text": "WhatsApp",
            "id": "1688746895480511",
            "update_time": "1688746895480511"
          },
          "description": {
            "text": "WhatsApp's official channel. Follow for our latest feature launches, updates, exclusive drops and more.",
            "id": "1689653839450668",
            "update_time": "1689653839450668"
          },
          "subscribers_count": "0",
          "verification": "verified",
          "picture": {
            "url": "",
            "id": "1707950960975554",
            "type": "IMAGE",
            "direct_path": "/v/t61.24694-24/416962407_970228831134395_8869146381947923973_n.jpg?ccb=11-4&oh=01_Q5AaIIvOIeu3l0HCZWILrmr-dGR_vXFqnhUeytw0-ojPc4hL&oe=670D95B1&_nc_sid=5e03e0&_nc_cat=110"
          },
          "preview": {
            "url": "",
            "id": "1707950960975554",
            "type": "PREVIEW",
            "direct_path": "/v/t61.24694-24/416962407_970228831134395_8869146381947923973_n.jpg?stp=dst-jpg_s192x192&ccb=11-4&oh=01_Q5AaIHO-DQklqm3q3awF7xwji_WAn9DkgZASQA0B2Ct0qbSa&oe=670D95B1&_nc_sid=5e03e0&_nc_cat=110"
          },
          "settings": {
            "reaction_codes": {
              "value": "ALL"
            }
          }
        },
        "viewer_metadata": {
          "mute": "off",
          "role": "subscriber"
        }
      }
    ]
  }
}

{
  "code": "INTERNAL_SERVER_ERROR",
  "message": "you are not loggin",
  "results": null
}