Curl vs ExternalResourceClient

client.php

<?php

use Sugarcrm\Sugarcrm\Security\HttpClient\ExternalResourceClient;
use Sugarcrm\Sugarcrm\Security\HttpClient\RequestException;

require 'vendor/autoload.php';

$ch = curl_init();

$url = 'https://httpbin.org/get';
echo 'cURL GET', PHP_EOL, PHP_EOL;
// cURL GET
curl_setopt_array($ch, array(
    CURLOPT_URL => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 60,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_2TLS,
));

$response = curl_exec($ch);

$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$errorNo = curl_errno($ch);
$error = curl_error($ch);

if ($errorNo !== 0) {
    $GLOBALS['log']->log("fatal", "curl error ($errorNo): $error");
    throw new \SugarApiExceptionError("curl error ($errorNo): $error");
}

curl_close($ch);

if ($httpCode === 0 || $httpCode >= 400) {
    $GLOBALS['log']->log("fatal", "Error message: $error");
    throw new \SugarApiException($error, null, null, $httpCode ? $httpCode : 500);
}

echo $response;
echo 'ExternalResourceClient GET', PHP_EOL, PHP_EOL;
// ExternalResourceClient GET
try {
    $response = (new ExternalResourceClient())->get($url);
} catch (RequestException $e) {
    $GLOBALS['log']->log('fatal', 'Error: ' . $e->getMessage());
    throw new \SugarApiExceptionError($e->getMessage());
}
$httpCode = $response->getStatusCode();
if ($httpCode >= 400) {
    $GLOBALS['log']->log("fatal", "Request failed with status: " . $httpCode);
    throw new \SugarApiException("Request failed with status: " . $httpCode, null, null, $httpCode);
}
echo $response->getBody()->getContents();

// cURL POST JSON
$url = 'https://httpbin.org/post';
echo 'cURL POST JSON', PHP_EOL, PHP_EOL;

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array ("Content-Type: application/json"));
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(['foo' => 'bar']));

$response = curl_exec($ch);
curl_close($ch);
$parsed = !empty($response) ? json_decode($response, true) : null;
var_dump($parsed);

// ExternalResourceClient POST JSON
echo 'cURL ExternalResourceClient JSON', PHP_EOL, PHP_EOL;
try {
    $response = (new ExternalResourceClient())->post($url, json_encode(['foo' => 'bar']), ['Content-Type' => "application/json"]);
} catch (RequestException $e) {
    throw new \SugarApiExceptionError($e->getMessage());
}

$parsed = !empty($response) ? json_decode($response->getBody()->getContents(), true) : null;
var_dump($parsed);