Ivan Sagalaev :flag_wbw:
Looking for a #Python library that would cache the most fresh responses of HTTP requests and only return cached ones in case of connection or server errors.
requests-cache doesn't do the trick: it either returns stale responses or crashes on connection errors.
Doesn't have to be HTTP-specific, really. Think of it as a general memoization with failover. But lru_cache from stdlib also doesn't work as it prefers the cached value over the available fresh one.
Last chance before I write my own!
Paarth :verified:
@isagalaev you don't need another library! From the docs for lru_cache: https://docs.python.org/3/library/functools.html#functools.lru_cache
> The original underlying function is accessible through the __wrapped__ attribute. This is useful for introspection, for bypassing the cache
So you can easily do something along the lines of:
try:
cached_func.__wrapped__(*args)
except SomeSpecificError:
cached_func(*args)
clacke
@paarth But if the inner function succeeds, it won't seed the cache.
ashwinvis has not
@isagalaev
There you go
https://github.com/requests-cache
The org has caching for both requests and aiohttp package.
Edit: aaah I didn't see that you have tried it already. I was fairly happy with the aiohttp one. It can be configured to cache only if an OK status is obtained.
You can look here for pointers.
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