How can I configure Flask-Cache with infinite time

问题:

In the Flask-Cache documentation all the examples use a finite timeout.

I'd like to never refresh the cache while the app is running. Is this possible, and if so how do I do it?

回答1:

Flask-Cache uses werkzeug.contrib.cache behind the scenes. From the documentation it's made clear that

A timeout of 0 indicates that the cache never expires.

So yes, infinite caching is supported and can be turned on by setting the timeout to zero.

回答2:

There does not seem to be anything listed in the docs. I have used the following and it works fine.

     cache = Cache(webapp, config={
         'CACHE_TYPE': 'filesystem',
         'CACHE_DIR': 'cache-dir', 
         'CACHE_DEFAULT_TIMEOUT': 922337203685477580,
         'CACHE_THRESHOLD': 922337203685477580
     })

That is way more years than you will need to worry about so for all intents and purposes, let's call that infinite.