I have an expensive function (the result is a long list of IntIds) that
I only want to call once in a request. It only gets calculated the
first time it is called, and the results may be used anytime after
that. But only for the current request. A subsequent request has to
recalculate from the beginning.
Session is the wrong place to stash this. I do not want want it to
persist beyond the current request.
Request is also the wrong place. It's slotted; I cannot add variables.
So where is the proper place to hold on to something like this just for
the duration of one request?
Suggestions (or solutions), anyone? I fear I may have missed something
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