NAME

       Net::OAuth2::AuthorizationServer::ClientCredentialsGrant - OAuth2 Client Credentials Grant

SYNOPSIS

         my $Grant = Net::OAuth2::AuthorizationServer::ClientCredentialsGrant->new(
           clients => {
             TrendyNewService => {
               client_secret  => 'TopSecretClientSecret',
               # optional
               scopes        => {
                 post_images   => 1,
                 annoy_friends => 1,
               },
             },
           }
         );

         # verify a client against known clients
         my ( $is_valid,$error,$scopes ) = $Grant->verify_client(
           client_id     => $client_id,
               client_secret => $client_secret,
           scopes        => [ qw/ list of scopes / ], # optional
         );

         # generate a token
         my $token = $Grant->token(
           client_id       => $client_id,
           scopes          => [ qw/ list of scopes / ],
           user_id         => $user_id,      # optional
               jwt_claims_cb   => sub { ... },   # optional, see jwt_claims_cb in Manual
         );

         # store access token
         $Grant->store_access_token(
           client_id         => $client,
           access_token      => $access_token,
           scopes            => [ qw/ list of scopes / ],
         );

         # verify an access token
         my ( $is_valid,$error ) = $Grant->verify_access_token(
           access_token     => $access_token,
           scopes           => [ qw/ list of scopes / ],
         );

DESCRIPTION

       This module implements the OAuth2 "Client Credentials Grant" flow as described at
       <http://tools.ietf.org/html/rfc6749#section-4.4>.

CONSTRUCTOR ARGUMENTS

       Along with those detailed at "CONSTRUCTOR ARGUMENTS" in
       Net::OAuth2::AuthorizationServer::Manual the following are supported by this grant type:

CALLBACK FUNCTIONS

       The following callbacks are supported by this grant type:

         verify_client_cb
         store_access_token_cb
         verify_access_token_cb

       Please see "CALLBACK FUNCTIONS" in Net::OAuth2::AuthorizationServer::Manual for
       documentation on each callback function.

AUTHOR

       Lee Johnson - "leejo@cpan.org"

LICENSE

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself. If you would like to contribute documentation or file a bug report
       then please raise an issue / pull request:

           https://github.com/Humanstate/net-oauth2-authorizationserver

perl v5.30.3                        Net::OAuth2::AuthorizationServer::ClientCredentialsGrant(3pm)