Authenticate to the system and establish a session.
| Name | Required | Default | Description | Example |
|---|---|---|---|---|
| userName | true | N/A | login user name (screen name) | |
| passwd | true | N/A | login password | |
| detail | false | user | What should be returned. Options are 'user' and 'sessionHashOnly' | sessionHashOnly |
| format | false | xml | session response output format (json|xml|csv|gchart) | json |
| {userName} may not be null | -4 |
| {passwd} may not be null | -4 |