When you want to create, update, or delete AWS WAF objects, get a change token and include the change token in the create, update, or delete request. Change tokens ensure that your application doesn't submit conflicting requests to AWS WAF.
Each create, update, or delete request must use a unique change token.
If your application submits a
GetChangeToken request and then submits
GetChangeToken request before submitting a create, update, or
delete request, the second
GetChangeToken request returns the same
value as the first
When you use a change token in a create, update, or delete request, the
status of the change token changes to
PENDING, which indicates that
AWS WAF is propagating the change to all AWS WAF servers. Use
GetChangeTokenStatus to determine the status of your change token.
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# The following example returns a change token to use for a create, update # or delete operation. svc$get_change_token()
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