# Doorkeeper.configure do
#   # Change the ORM that doorkeeper will use
#   # Currently supported options are :active_record, :mongoid2, :mongoid3, :mongo_mapper
#   orm DOORKEEPER_ORM
#
#   # This block will be called to check whether the
#   # resource owner is authenticated or not
#   resource_owner_authenticator do
#     # Put your resource owner authentication logic here.
#     # e.g. User.find_by_id(session[:user_id]) || redirect_to(new_user_session_url)
#     User.where(id: session[:user_id]).first || redirect_to(root_url, alert: 'Needs sign in.')
#   end
#
#   # If you want to restrict the access to the web interface for
#   # adding oauth authorized applications you need to declare the
#   # block below
#   # admin_authenticator do
#   #   # Put your admin authentication logic here.
#   #   Admin.find_by_id(session[:admin_id]) || redirect_to(new_admin_session_url)
#   # end
#
#   # Authorization Code expiration time (default 10 minutes).
#   # access_token_expires_in 10.minutes
#
#   # Access token expiration time (default 2 hours)
#   # If you want to disable expiration, set this to nil.
#   # access_token_expires_in 2.hours
#
#   # Issue access tokens with refresh token (disabled by default)
#   use_refresh_token
#
#   # Define access token scopes for your provider
#   # For more information go to
#   # https://github.com/doorkeeper-gem/doorkeeper/wiki/Using-Scopes
#   default_scopes  :public
#   optional_scopes :write, :update
#
#   # Change the way client credentials are retrieved from the request object.
#   # By default it retrieves first from `HTTP_AUTHORIZATION` header and
#   # fallsback to `:client_id` and `:client_secret` from `params` object
#   # Check out the wiki for mor information on customization
#   # client_credentials :from_basic, :from_params
#
#   # Change the way access token is authenticated from the request object.
#   # By default it retrieves first from `HTTP_AUTHORIZATION` header and
#   # fallsback to `:access_token` or `:bearer_token` from `params` object
#   # Check out the wiki for mor information on customization
#   # access_token_methods :from_bearer_authorization, :from_access_token_param, :from_bearer_param
#
#   # Change the native redirect uri for client apps
#   # When clients register with the following redirect uri, they won't be redirected to any server and the authorization code will be displayed within the provider
#   # The value can be any string. Use nil to disable this feature. When disabled, clients must provide a valid URL
#   # (Similar behaviour: https://developers.google.com/accounts/docs/OAuth2InstalledApp#choosingredirecturi)
#   #
#   # native_redirect_uri 'urn:ietf:wg:oauth:2.0:oob'
#
#   # WWW-Authenticate Realm (default 'Doorkeeper').
#   realm 'Doorkeeper'
# end