client-connect.php

<?php
//api
//for test api 
if (!function_exists('curl_init')) {
	die('Curl module not installed!' . PHP_EOL);
}


$route = '/ping';
//$route = '/test/4';
//$route = '/doesntexist';
//$route = '/skip/auth';

if (isset($argv[1])) {
	$host = 'http://' . $argv[1] . $route;
} else {
	$host = "http://api.example.com" . $route;
}

$privateKey = '593fe6ed77014f9507761028801aa376f141916bd26b1b3f0271b5ec3135b989';

$time = time();
$id = 1;

$data = ['name' => 'bob'];
$message = buildMessage($time, $id, $data);

$hash = hash_hmac('sha256', $message, $privateKey);
$headers = ['API_ID: ' . $id, 'API_TIME: ' . $time, 'API_HASH: ' . $hash];

$method = 'POST';
$ch = curl_init();

curl_setopt($ch, CURLOPT_VERBOSE, TRUE);
curl_setopt($ch, CURLOPT_URL, $host);

switch($method) {
    case 'POST':
    	curl_setopt($ch, CURLOPT_POST, TRUE);
    	curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    	break;
    case 'GET':
    	break;
    default:
        $data = http_build_query($data);
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
        break;
}

// curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");

curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLINFO_HEADER_OUT, TRUE);

$result = curl_exec($ch);
if ($result === FALSE) {
	echo "Curl Error: " . curl_error($ch);
} else {
	echo PHP_EOL;
	echo "Request: " . PHP_EOL;
	echo curl_getinfo($ch, CURLINFO_HEADER_OUT);	
	echo PHP_EOL;

	echo "Response:" . PHP_EOL;
	echo $result; 
	echo PHP_EOL;
}

curl_close($ch);


function buildMessage($time, $id, $data) {
	return $time . $id . http_build_query($data, '', '&');
}

?>