Registrace na novy zavod
On the server-side, setup your response endpoint to take in the response JSON and create the HPP response object. This will contain all the transaction response values you need to update your application. If you’re using full-page redirect the response will be a standard HTTP POST.
The response from HPP will contain a hashed string (SHA1HASH field) made up of key transaction variables, including the Order ID, Result Code and Timestamp. The SDK will construct and check the hash to ensure the response hasn’t been tampered with. It will throw an exception if what it constructs doesn’t match the SHA1HASH returned in the response.