Sample code for FLOW API

flow-api.php

<?

// NOTE: requires php5-cli, php5-curl

$access_key = $argv[1];
$secret = $argv[2];
$url = $argv[3];

$date = time(); // UNIX timestamp

$resource = substr($url, strpos($url, "/api/v1"));
$res_parts = split("\?", $resource);
  
$payload = "GET\n$date\n" . $res_parts[0];

$signature = base64_encode(hash_hmac("sha1", $payload, $secret, TRUE));

$curl = curl_init();

curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_HTTPHEADER, array("Date: $date", "Autorization: $access_key:$signature"));

curl_exec($curl);
curl_close($curl);
?>