API Gemini через PHP Curl: Invaliddsignature ⇐ Php

[Anonymous]

Я преобразовал следующий код Python из официальных документов (https://docs.sandbox.gemini.com/rest-ap ... invocation) в PHP, но я всегда получаю invalidsignature :
url = "https://api.gemini.com/v1/mytrades"
gemini_api_key = "mykey"
gemini_api_secret = "1234abcd".encode()

t = datetime.datetime.now()
payload_nonce = time.time()
payload = {"request": "/v1/mytrades", "nonce": payload_nonce}
encoded_payload = json.dumps(payload).encode()
b64 = base64.b64encode(encoded_payload)
signature = hmac.new(gemini_api_secret, b64, hashlib.sha384).hexdigest()

request_headers = {
'Content-Type': "text/plain",
'Content-Length': "0",
'X-GEMINI-APIKEY': gemini_api_key,
'X-GEMINI-PAYLOAD': b64,
'X-GEMINI-SIGNATURE': signature,
'Cache-Control': "no-cache"
}

response = requests.post(url, headers=request_headers)
< /code>
мой код PHP - это то, что все выглядит правильно: < /p>
$b64 = base64_encode(utf8_encode(json_encode([ "request" => "/v1/balances", "nonce" => time() ])));
$header = [
'Content-Type: text/plain',
'Content-Length: 0',
'X-GEMINI-APIKEY: master-XXXXXXX',
'X-GEMINI-PAYLOAD: ' . $b64,
'X-GEMINI-SIGNATURE: ' . md5(hash_hmac('sha384', utf8_encode('XXXXXXXXXX'), $b64)),
'Cache-Control: no-cache'
];
$ch = curl_init('https://api.sandbox.gemini.com/v1/balances');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
echo curl_exec($ch);
< /code>
ошибка: < /p>
{"result":"error","reason":"InvalidSignature","message":"InvalidSignature"}


Подробнее здесь: https://stackoverflow.com/questions/735 ... dsignature