Flask Framework Cookbook - Second Edition

How it works...

After adding the preceding code, to check whether the cache works as expected, fetch the list of categories by pointing the browser to http://127.0.0.1:5000/categories. This will save a key-value pair for this URL in the cache. Now, create a new category quickly and navigate to the same category list page. You will notice that the newly added category is not listed. Wait for a couple of minutes and then reload the page. The newly added category will be shown now. This is because the first time the category list was cached, it expired after 2 minutes, that is, 120 seconds.

This might seem to be a fault with the application, but in the case of large applications, this becomes a boon where the hits to the database are reduced, ...