sugarcrm.rb

# Use the HTTP Connection and SugarCRM API to load the Admin user
SugarCRM.connection.get_entry("Users", 1)

# Retrieve all Accounts by user name (direct API method)
SugarCRM.connection.get_entry_list(
  "Users",   
  "users.user_name = \'sarah\'",
  {
    :link_fields => [
      {
        "name"  => "accounts",
        "value" => ["id", "name"]
      }
    ]
  }
)