How do I encode/decode short strings as Base64 using GWT?

Question

I need to encode a short String as base 64 in GWT and decode the base 64 string on the server. Anyone have utility class or library for this?

Answer 1

You can use native JavaScript for this on the client on all browsers except IE ≤ 9. On the server you can use one of the official classes.

Java/GWT:

private static native String b64decode(String a) /*-{
  return window.atob(a);
}-*/;

Encode is btoa.