public static String getSignature(String base, String secret) {
try {
Mac sha256Hmac = Mac.getInstance(HMAC_SHA256);
SecretKeySpec secretKey = new SecretKeySpec(secret.getBytes(), HMAC_SHA256);
sha256Hmac.init(secretKey);
return byteArraytoHexString(sha256Hmac.doFinal(base.getBytes()));
} catch (Exception e) {
log.error("Failed to generate signature");
}
return null;
}