Authenticate device

onegini.device.authenticate

The device can be authenticated for specific (or the default) scopes.

`onegini.device.authenticate`

This function takes an optional first argument with the following properties:

Property	Default	Description
`scopes`	server configuration	An array of scopes the device will authenticate for

onegini.device.authenticate({ scopes: ["read"] })
    .then(() => {
      alert("The device has been authenticated!");
    })
    .catch((err) => {
      alert("Device authentication error!\n\n" + err.description);
    });

The error callback contains an object with these properties:

Property	Example	Description
`code`	9001	The error code
`description`	"Invalid Pin"	Human readable error description