sign property

String sign

Signature of the received data. For the signature, the app_id values, the api_secret secret signature specified in the settings of your application, the user_id of the user, and the $ field_name. $ Field_value pair returned in the event are sequentially combined for the signature. The SHA256 cryptographic hash is calculated from the string obtained after concatenation in byte representation. You need to take base64UrlEncode from the hash. An example of generating an event signature in php for an application with app_id 7770000 and a secret key W7kVvxVxZ4: $sign = rtrim(strtr(base64_encode(hash('sha256', '[e-mail]', true)), '+/', '-_'), '=');

Implementation

String get sign;