How I know when the last time URL was requested?

Question

I need to know the last time when a specific page was requested.

For example, in my flow, I create a simple webservices1 that returns a JSON object (random number), and at the same time, create another webservices2 that provides me the last request for my webservices1 and what number the person who requested my services1 obtained.

Answer 1

I use a local variable that refresh when the other webservices are requested, I thought also exist another node thar provide information about webServices but the solution was very simple , only create a global variable.