encryptHmacSha256 static method
Implementation
static String encryptHmacSha256({String key = 'VNLook', required String value}) {
var keyHmac = utf8.encode(key);
var bytesHmac = utf8.encode(value);
var hmacSha256 = Hmac(sha256, keyHmac); // HMAC-SHA256
var digest = hmacSha256.convert(bytesHmac);
String base64 = base64Encode(digest.bytes);
return base64;
}