++ed by:
ADAMJS

1 PAUSE user

Mahmoud A. Mehyar

NAME

Net::Facebook::Oauth2 - a simple Perl wrapper around Facebook OAuth v2.0 protocol

SYNOPSIS

Somewhere in your application's login process:

    use Net::Facebook::Oauth2;

    my $fb = Net::Facebook::Oauth2->new(
        application_id     => 'your_application_id', 
        application_secret => 'your_application_secret',
        callback           => 'http://yourdomain.com/facebook/callback'
    );

    # get the authorization URL for your application
    my $url = $fb->get_authorization_url(
        scope   => [ 'public_profile', 'email', 'offline_access', 'publish_stream' ],
        display => 'page'
    );

Now redirect the user to this $url.

Once the user authorizes your application, Facebook will send him/her back to your application, on the callback link provided above.

Inside that callback route, use the verifier code parameter that Facebook sends to get the access token:

    # param() below is a bogus function. Use whatever your web framework
    # provides (e.g. $c->req->param('code'), $cgi->param('code'), etc)
    my $code = param('code');

    my $access_token = $fb->get_access_token(code => $code);

If you got so far, your user is logged! Save this access token in your database or session.

Later on you can use it to communicate with Facebook on behalf of this user:

    my $fb = Net::Facebook::Oauth2->new(
        access_token => $access_token
    );

    my $info = $fb->get(
        'https://graph.facebook.com/v2.2/me'   # Facebook API URL
    );

    print $info->as_json;

DESCRIPTION

Net::Facebook::Oauth2 gives you a way to simply access FaceBook Oauth 2.0 protocol

For more information please see example folder shipped with this Module

SEE ALSO

For more information about Facebook Oauth 2.0 API

Please Check http://developers.facebook.com/docs/

get/post Facebook Graph API http://developers.facebook.com/docs/api

USAGE

Net::Facebook::Oauth->new( %args )

Pass args as hash. %args are:

  • application_id

    Your application id as you get from facebook developers platform when you register your application

  • application_secret

    Your application secret id as you get from facebook developers platform when you register your application

$fb->get_authorization_url( %args )

Return an Authorization URL for your application, once you receive this URL redirect user there in order to authorize your application

  • scope

    ['offline_access','publish_stream',...]

    Array of Extended permissions as described by facebook Oauth2.0 API you can get more information about scope/Extended Permission from

    http://developers.facebook.com/docs/authentication/permissions

    Please note that requesting information other than public_profile, email and user_friends will require your app to be reviewed by Facebook!

  • callback

    callback URL, where facebook will send users after they authorize your application

  • display

    How to display Facebook Authorization page

    • page

      This will display facebook authorization page as full page

    • popup

      This option is useful if you want to popup authorization page as this option tell facebook to reduce the size of the authorization page

    • wab

      From the name, for wab and mobile applications this option is the best facebook authorization page will fit there :)

$fb->get_access_token( %args )

Returns access_token string One arg to pass

  • code

    This is the verifier code that facebook send back to your callback URL once user authorize your app, you need to capture this code and pass to this method in order to get access_token

    Verifier code will be presented with your callback URL as code parameter as the following

    http://your-call-back-url.com?code=234er7y6fdgjdssgfsd...

    When access token is returned you need to save it in a secure place in order to use it later in your application

$fb->get( $url,$args )

Send get request to facebook and returns response back from facebook

  • url

    Facebook Graph API URL as string

  • $args

    hashref of parameters to be sent with graph API URL if required

The response returned can be formatted as the following

  • $response>as_json

    Returns response as json object

  • $response>as_hash

    Returns response as perl hashref

For more information about facebook grapg API, please check http://developers.facebook.com/docs/api

$fb->post( $url,$args )

Send post request to facebook API, usually to post something

  • url

    Facebook Graph API URL as string

  • $args

    hashref of parameters to be sent with graph API URL

For more information about facebook grapg API, please check http://developers.facebook.com/docs/api

AUTHOR

Mahmoud A. Mehyar, <mamod.mehyar@gmail.com>

CONTRIBUTORS

Big Thanks To

COPYRIGHT AND LICENSE

Copyright (C) 2012-2015 by Mahmoud A. Mehyar

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.1 or, at your option, any later version of Perl 5 you may have available.