determineUsername
FunctiondetermineUsername(requestOptions: RequestOptionsWithUsername): Promise<string>Used to determine the username to use in a request. Will use the username passed in the
requestOptions if present, otherwise will use the username from the authentication option.
This method is used internally to determine the username to use in a request and is async to
support the case where the username is not immediately available.
Parameters
| Parameter | Type | Notes | 
|---|---|---|
request | RequestOptionsWithUsername | the requests options  | 
Returns
Promise<string>the authentecated users username encoded for use in a URL.