NAME
    Mojolicious::Plugin::OAuth2 - Auth against OAUth2 APIs

SYNOPSIS
       plugin 'o_auth2',
           facebook => {
              key => 'foo',
              secret => 'bar' 
           };
   
       get '/auth' => sub {
          my $self=shift;
          $self->get_token('facebook',callback=>sub {
             ...
          });
       };

DESCRIPTION
    This Mojolicious plugin allows you to easily authenticate against a
    OAuth2 provider. It includes configurations for a few popular providers,
    but you can add your own easily as well.

    Note that OAuth2 requires https, so you need to have the optional
    Mojolicious dependency required to support it. Call

       $ mojo version

    to check if it is installed.

HELPERS
  get_token <$provider>, <%args>
    Will redirect to the provider to allow for authorization, then fetch the
    token. The token gets provided as a parmeter to the callback function.
    Usually you want to store the token in a session or similar to use for
    API requests. Supported arguments:

    callback
        Callback method to handle the provided token. Gets the token as it's
        only argument

    error_callback
        Callback method to handle any error. Gets the failed transaction as
        it's only argument.

    scope
        Scope to ask for credentials to. Should be a space separated list.

CONFIGURATION
  providers
    Takes a hashref of providers, each one with a hashref of options. For
    instance:

        plugin 'o_auth2', {
           iusethis => {
              authorize_url => 'iut.com/auth',
              token_url => 'iut.com/token',
              key => 'foo',
              secret => 'bar',
        }};

    The plugin includes configurations a few providers, to use those, just
    set the key and secret. The currently supported providers are:

    facebook
        OAuth for facebook's graph API, <http://graph.facebook.com/>.

    Twitter
        Twitter OAuth2 support is not official yet, but this endpoint is in
        use by the twitter anywhere API.

  AUTHOR
    Marcus Ramberg <mailto:mramberg@cpan.org>

  LICENSE
    This software is licensed under the same terms as Perl itself.