Ethereum: Binance payment error with PHP CURL
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The “Signature for this requirement is not valid” Errors when using the Binance Pay -Api via PHP CURL indicates a problem with checking the signature provided by the user. This problem occurs due to a mismatch on how the signature against the expected format was generated and checked.
binance binance pay signature check
Binance Pay requires users check their signatures before they authorize transactions for themselves or others. The review process includes the signing of a message with the private key, which is then encrypted with the public key of the API server in order to create the signature.
PHP CURL error treatment: 400 errors catch
If you encounter mistakes in your code, it is important to catch them properly and to deal with them. In this case, we will not use PHP -CURL to identify and correct the identification and correction of the “Signature for this request for this request”.
Identifying the problem
To debug this problem, follow the following steps:
- Check your signature
: Make sure you generate a signature correctly. This includes the calculation of the “HMAC” tendency based on your private key and the message to be signaled.
- Check the message coding
: The API server expects the coded message in the format, which was specified by the “message type”. Check whether your coded message matches this requirement.
PHP CURL implementation
Here is a sample code snippet that shows how the “signature for this requirement is not valid” error:
`PHP
Function Getbinance Payapikey () {
$ apikey = ‘your_binance_pay_api_key’;
$ signingkey = ‘your_binance_pay_signing_key’;
// generate signature with private key and messages
$ message = json_encode ([‘user’ => ‘your_username’, ‘Seng’ => ‘1.0 ether’]));
$ signature = hash_hmac (‘Sha256’, $ message, $ signingkey, true);
// Check the signature with the public key of the API server
attempt {
$ ch = curl_init ($ apikey);
curl_setopt ($ ch, curlopt_returnransfer, true);
curl_setopt ($ ch, curlopt_post, true);
curl_setopt ($ ch, curlopt_postfields, http_build_query ([‘signature’ => $ signature]);
$ response = curl_exec ($ ch);
if (curl_errno ($ ch)) {
Echo ‘curl error:’. curl_error ($ ch). “\ N”;
Return zero;
}
$ data = json_decode ($ response, true);
if ($ data [‘status’]! == ‘success’) {
echo “could not verify the signature with Binance -Pay -Api. \ n”;
echo “status: {$ data [‘status’]}, code: {$ data [‘code’]}, error message: {$ data [‘erroressage’]} \ n”;
Return zero;
}
} Catch (exception $ e) {
Echo ‘An error occurred:’. $ e-> Getmessage (). “\ N”;
Return zero;
}
}
Getbinance Payapikey ();
`
In this example, we first generate a signature with the private key provided and the specified message. Then we check the signature with the public key of the API server by encoding the message in the JSON format and signing with the private key provided. If the review is successful, the code continues to check whether the request has been successfully authenticated.
note
- Make sure you replace with your actual API keys
'your_binance_pay_api_key'and’ ‘your_binance.pay.signing_Key’`.
- Make sure that your API server’s public key matches the expected format for the signature check. Contact Binance Pay documentation to check the required format.
By removing these problems, you should be able to fix the “Signature for this requirement” errors if you use PHP CURL for connecting to Binance Pay -API.
