Bitfinex API v2 Authenticated Endpoints Using PHP and cURL
I'm sure that I am so close, but very close. I'm trying to get my Bitfinex v2 API wallet balances back, but I keep getting an invalid key error.
After looking at this question, I think my problem may be related, but updating my code with it utf8_encode
didn't help solve the problem.
This is my first time using cURL, so I'm not very sure if I set all the options correctly.
Thanks in advance for the help provided.
My code so far (you need to trust that both are installed _APISECRET
and _APIKEY
):
CONST _APIPATH = "v2/auth/r/wallets";
CONST _APIURL = "https://api.bitfinex.com/";
$nonce = strval(time()*1000);
$body = json_encode(array());
$signature = '/api/' . _APIPATH . $nonce . $body;
$signature = hash_hmac('sha384', $signature, utf8_encode(_APISECRET));
$headers = array('bfx-nonce' => $nonce, 'bfx-apikey' => utf8_encode(_APIKEY), 'bfx-signature' => $signature, 'content-type' => 'application/json');
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
curl_setopt($ch, CURLOPT_URL, _APIURL . _APIPATH);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_exec($ch);
curl_close($ch);
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1 answer
I had the same problem today. Here's my working solution:
/**
* Bitfinex API V2 REST AUTHENTICATED ENDPOINT
*
* @param $method
* @param array $request
*
* @return mixed
*/
private function queryPrivate($method, array $request = array())
{
// build the POST data string
$postData = (count($request)) ? '/' . implode("/", $request) : '';
$nonce = (string) number_format(round(microtime(true) * 100000), 0, ".", "");
$path = "/api/v2".'/auth/r/'.$method.$postData.$nonce;
$signature = hash_hmac("sha384", utf8_encode($path), utf8_encode($this->secret));
$headers = array(
"content-type: application/json",
"content-length: ",
"bfx-apikey: " . $this->key,
"bfx-signature: " . $signature,
"bfx-nonce: " . $nonce
);
$url = $this->url.'/auth/r/' . $method . $postData;
curl_setopt($this->curl, CURLOPT_URL, $url);
curl_setopt($this->curl, CURLOPT_POST, true);
curl_setopt($this->curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($this->curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($this->curl, CURLOPT_SSL_VERIFYPEER, true);
if (!$result=curl_exec($this->curl)) {
return $this->curl_error($this->curl);
} else {
// var_dump($result);
return $result;
}
}
I am calling the function with
$param = array();
$this->queryPrivate("wallets", $param);
$param = array('tIOTETH','hist');
$this->queryPrivate("trades", $param);
Good luck!
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