Update Parameter from Query

[10kinds]

I have a situation where I'm calling into a Rest API with transactional data. I need to pass in a date/time as part of the API call...

apiUrl = "BASE-URL/transactions/search/recordsModifiedBetween?From="&LastSearchTime&"&To="&DateTime.LocalNow&"",

The goal is to log the time the last search ran and pass that as a parameter into the query so that I only get modified records from the API during a specific window of time. I need to implement this across 100 or so calls, so updating the Parameter manually isn't an option.

Any thoughts would be greatly appreciated.