IOS Receipt validation IllegalArgumentException

Question

I use similar code as its shown here in the question. Java and AppStore receipt verification

But I still end up getting

{"status":21002, "exception":"java.lang.IllegalArgumentException"}

Can it be a problem at Base64 encoding?. Do I have to convert the base64 encoded string into hex or something else?.

What i post is similar to following

{"receipt-data" : "eyJzaWduYXR1cmUiOiJBbjNJVER0VVNmZWNhaGMxR.....

Answer 1

The problem was at Base64 encoding inside Java. When I do the encoding inside IOS and use that as the request from server without any encoding in Java, then it worked.