GAE-GWT login

[and_16]

Hello everyone i'm new at google app engine and ive been trying to
make a really basic login using GWT , ExtJs .Unfortunately there is no
documentation nor tutorials on how to do it, there is just one login
tutorial on GAEs web but the login authentification is with a gmail
adress and im
trying to make one for a lot of differents usernames.
Whatever help you can give it would be very nice thanks a lot .

[Ernesto Oltra]

Notice Google Accounts doesn't means **GMail** accounts, the Users API can handle hotmail, yahoo or whatever e-mail address they have.

Generate a URL using this:

UserService userService = UserServiceFactory.getUserService();

String url = userService.createLoginUrl("http://example.com/page-to-return");

Then you can send the url through a RPC call, or better!, insert it into the page:

  http://code.google.com/intl/en/webtoolkit/articles/dynamic_host_page.html