Google Apps Security and Compliance Services Web Services Application Programming Interface Guide, Early Access Version 1.5 - Manual (Page 49)

User Sync API 47
User Sync API GetUsers Operation
Response If successful, no data is returned except for an empty SOAP response (void).
Otherwise see “Exceptions” on page 44.
Exceptions User Sync API API Infrastructure Exceptions -- See “Exceptions” on page 44,
and for exception handling recommendations, see “Exception Management” on
page 20.
C# Example This v. 1.5 C# example is using the PMP password (pword) for authentication.
The example was developed using Microsoft Visual Studio 2005.
...
UserSyncAPI.UserSyncService wsCheckAuth = new
UserSyncAPI.UserSyncService();
UserSyncAPI.authElem authCredentials = new
UserSyncAPI.authElem();
authCredentials.apiKey = “
key>”;
authCredentials.email = “”;
authCredentials.pword = “”;
wsCheckAuth.checkauth(authCredentials);
...
Operation GetUsers
Request: GetUsers (AuthElem, Criteria, Control)
Response: GetUsersResponse holding a UserRecord for each requested
user