How do I add multiple User Aliases using API?

[MattinglyBrian]

I am trying to add multiple user aliases to an account (around 50 - 100)

Using the GUI I am only able to add one at a time. To save some time and for future edits, we are trying to do this using the API. I have found documentation on editing a user but no attribute for the Alias. 

[EdwardDavis]

Authentication Manager Bulk Admin can do it....aliases are called GrpDefLogin.

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Example: I just put user zaz in a group aliasgrp

and ran an AMBA input file to assign a list of aliases for user ZAZ

input file:

cat cauu.csv

Action,deflogin,grpdeflogin,grpname
cau,zaz,zaz8,aliasgrp
cau,zaz,zaz7,aliasgrp
cau,zaz,zaz6,aliasgrp
cau,zaz,zaz5,aliasgrp
cau,zaz,zaz4,aliasgrp
cau,zaz,zaz3,aliasgrp

AMBA run:

rsaadmin@edavis-vm150:/opt/rsa/am/utils> ./rsautil AMBulkAdmin  -a admin -P 'chillywilly123!' --verbose -m 0 -i cauu.csv

Result:

[MattinglyBrian]

We currently do not have the AMBA tool for our deployment.

[EdwardDavis]

OK

In the Dev guide see Class AMPrincipalAliasDTO

This data transfer object (DTO) is used to specify an alias user ID for an existing Authentication Manager principal and optionally the location of a shell that will be set upon a successful logon of the user with the alias user ID.
One or more aliases can be set for a user using the UpdateAMPrincipalCommand. Existing aliases for a given user can be looked up using the LookupAMPrincipalCommand.