problem with nova api

[gargouri20011]

Hello
I am stuck in Auth failed when i try to use nova private API .
Here is the code :

/////////////////////////////////////////
$api_key = "xxxxxxxxxxxxxxxxxxxxxx" ;
$api_secret = "xxxxxxxxxxxxxxxxxxxxxx" ;

$t = time ();

$url = "https://novaexchange.com/remote/v2/private/" . "tradehistory" . "/?nonce=" . $t ;

$signature = hash_hmac ( 'sha512' , $url , $api_secret , true );


$ch = curl_init ();
$curlConfig = array(
CURLOPT_URL => "https://novaexchange.com/remote/v2/private/tradehistory" . "/?nonce=" . $t ,
CURLOPT_POST => true ,
CURLOPT_RETURNTRANSFER => true ,
CURLOPT_SSL_VERIFYPEER => false ,
CURLOPT_POSTFIELDS => array(
'apikey' => $api_key ,
'signature' => $signature ,
)
);
curl_setopt_array ( $ch , $curlConfig );
$result = curl_exec ( $ch );


curl_close ( $ch );

echo $result ;
output === > {"status": "error", "message": "Auth failed"}
///////////////////////////////////////////

any idea what is wrong here ?

[1715646259]

1715646259

[1715646259]

1715646259

[1715646259]

1715646259

[ferumflex]

And what is result of the executing this script? It can be anything, please provide more description

[gargouri20011]

Hello
{"status": "error", "message": "Auth failed"}

[BrewMaster]

i don't understand this language that you are using but i have had the same issue with Novaexchange API too.
i see two things here:
1. i post to what you are calling "url" here not to "CURLOPT_URL"
2. your signature must be in base64!

#2 was my issue too. usually i convert the signature to hex or just the same bytes and post it, but with Nova you have to convert your HmacSha512 result into base64 and post that!

[chicobr]

maybe their server have some problem. Many people complain about register and ticket system last week. Some hacker try to ddos them

[gargouri20011]

i don't understand this language that you are using but i have had the same issue with Novaexchange API too.
i see two things here:
1. i post to what you are calling "url" here not to "CURLOPT_URL"
2. your signature must be in base64!

#2 was my issue too. usually i convert the signature to hex or just the same bytes and post it, but with Nova you have to convert your HmacSha512 result into base64 and post that!

hello

i did :
$signature = base64_encode(basehash_hmac ( 'sha512' , $url , $api_secret )); //convert HmacSha512 to base64



Still same error {"status": "error", "message": "Auth failed"}

[ferumflex]

I was able find example on python https://novaexchange.com/remote/faq/
You need to add headers property maybe this helps.

[gargouri20011]

Hello
 $headers = array('content-type: application/x-www-form-urlencoded');
still same
block {"status": "error", "message": "Auth failed"}" 

[Patatas]

Hello
 $headers = array('content-type: application/x-www-form-urlencoded');
still same
block {"status": "error", "message": "Auth failed"}" 

1.Please edit your code in a nice code-block provided.
2.What do you see on the console ?
3.Have you used Post-Man for the analysis ?
4.Check if the error code is 405 in the response or your requests are going as options.
4.Headers might be needs to send along with the request to allow access.I can help you if you format the code nicely and figure out what exactly the problem is.

[gargouri20011]

thank for reply ,
i tried all:  empty header , header as content-type: application/x-www-form-urlencoded and header with key and secret key ($headers = array('Sign: '.$sign,'Key: '.$key,)

Still same result

2) i am using php so i can see what is the output , that's all output i am getting .
3)no
3)according to header request is 200

4)would be g8

[grixxby]

Hi gargouri20011

I think your problem lies in the way you create the signature.

Try changing
$signature = base64_encode(hash_hmac ( 'sha512' , $url , $api_secret ));

To :
$signature = base64_encode(hash_hmac('sha512', $url, $api_secret, true));

The last parameter of hash_mac needs to be true. If not specified, it's false by default and results in lowercase hexits instead of raw binary data.

Hope that helps