I need to integrate payU payment gateway in my android app. But when app is trying to to get hash key it gives me error saying that
Hash param is missing
In demo app there are two option to generate hash
if(null == salt)
generateHashFromServer(mPaymentParams);
else
generateHashFromSDK(mPaymentParams, intent.getStringExtra(PayuConstants.SALT));
In demo app there are note saying that hash key generation should be done on server side
so I am passing salt as null
but Now the question is Which server url I have to use to generate hash? Demo app is using this url https://payu.herokuapp.com/get_hash
PayU money doesn't give any kind of API, So, people use a webview instead.