Hello, in my simple script I call an api which effectively involves me getting an xml file.
However the problem is everytime I get a visitor to the webpage it calls the API which means lots of wasteful calls to the API as the data their end isn't updated more than once an hour or something.
I know how to cache and retrieve the data but what command/s are used to tell my server only to call the API every hour and thus update the cache?
Thanks
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