This resource is used to essentially "log in" to OnDemand. The response status will be 201
Created if successful with a custom response header vchs-authorization containing the
OAUTH2 authentication token. If the request contains incorrect credentials, a status of 401,
will be returned.
Also returned is a response body containing the service group ID of the authenticated user.
The JSON response would look like:
{
serviceGroupIds: [
"85a29d81-e150-49ed-b722-3e39b174fcd3"
]
}