curl --request GET \
--url 'https://api.xsolla.com/merchant/v2/merchants/{merchant_id}/events/messages' \
--header 'authorization: Basic <your_authorization_basic_key>'

<?php

// if you use Xsolla SDK for PHP
use Xsolla\SDK\API\XsollaClient;
$xsollaClient = XsollaClient::factory(array(
    'merchant_id' => MERCHANT_ID,
    'api_key' => API_KEY
));
$eventsList = $client->ListEvents(array());

// if you don’t use Xsolla SDK for PHP
$client = new http\Client;
$request = new http\Client\Request;

$request->setRequestUrl('https://api.xsolla.com/merchant/v2/merchants/{merchant_id}/events/messages');
$request->setRequestMethod('GET');
$request->setHeaders(array(
  'authorization' => 'Basic <your_authorization_basic_key>'
));

$client->enqueue($request)->send();
$response = $client->getResponse();

echo $response->getBody();

var client = new RestClient("https://api.xsolla.com/merchant/v2/merchants/{merchant_id}/events/messages");
var request = new RestRequest(Method.GET);
request.AddHeader("authorization", "Basic <your_authorization_basic_key>");
IRestResponse response = client.Execute(request);

import http.client

conn = http.client.HTTPSConnection("api.xsolla.com")

headers = { 'authorization': "Basic <your_authorization_basic_key>" }

conn.request("GET", "/merchant/v2/merchants/{merchant_id}/events/messages", headers=headers)

res = conn.getresponse()
data = res.read()

print(data.decode("utf-8"))

require 'uri'
require 'net/http'

url = URI("https://api.xsolla.com/merchant/v2/merchants/{merchant_id}/events/messages")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE

request = Net::HTTP::Get.new(url)
request["authorization"] = 'Basic <your_authorization_basic_key>'

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

OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .url("https://api.xsolla.com/merchant/v2/merchants/{merchant_id}/events/messages")
  .get()
  .addHeader("authorization", "Basic <your_authorization_basic_key>")
  .build();

Response response = client.newCall(request).execute();

var data = null;

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function () {
  if (this.readyState === this.DONE) {
    console.log(this.responseText);
  }
});

xhr.open("GET", "https://api.xsolla.com/merchant/v2/merchants/{merchant_id}/events/messages");
xhr.setRequestHeader("authorization", "Basic <your_authorization_basic_key>");

xhr.send(data);