NETWORK_OAUTH_REQUEST_CODE NETWORK Endpoint
  /ondemand/network/?method=NETWORK_OAUTH2_REQUEST_CODE  
  Returns URL for authentication.   You don't strictly need to use it, as can just create the URL within your client.

To request a token you must have first set up your client (application) id using SETUP_URL_MANAGE, with same type and private=N.
 
  PARAMETERS TYPE NOTES
  type Numeric 8=Facebook
  typetext Text FACEBOOK, OTHER
  urlredirect Text Web page that will handle the 3rd phase of the token request.
  urlrequestcode Text eg for Facebook = https://www.facebook.com/dialog/oauth
  RETURN  
  status RETURNED
  authenticateurl
Redirect to this url.
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