# Method Web.Auth.OAuth.Authentication()->call()

Method call

  `string call(string|Standards.URI url, void|mapping|.Params args, void|string method)`

Description

  Does the low level HTTP call to a service.

Throws

  An error if HTTP status != 200

Parameter `url`

  The full address to the service e.g: `http://twitter.com/direct_messages.xml`

Parameter `args`

  Arguments to send with the request

Parameter `mehod`

  The HTTP method to use