# File lib/doorkeeper/oauth/authorization/code.rb, line 12
        def issue_token
          @token ||= AccessGrant.create!(
            application_id: pre_auth.client.id,
            resource_owner_id: resource_owner.id,
            expires_in: configuration.authorization_code_expires_in,
            redirect_uri: pre_auth.redirect_uri,
            scopes: pre_auth.scopes.to_s
          )
        end