dj-cache
A database-backed eventually consistent Last-Write-Wins cache for Python functions inside a Django application.
Installation
pip install \
git+https://github.com/aalekhpatel07/dj-cache.git#subdirectory=dj-cache
Usage
Example: As a plain decorator on arbitrary functions.
from dj_cache.decorators import cached
@cached(ttl_seconds=10)
def my_expensive_function():
...
# The expensive function is only called and waited on once.
# Subsequent calls will be cached and in case the cached value
# is expired/stale, an update will be triggered in the background
# without blocking the function call, which will return the last stored value.
# This ensures a Last-Write-Wins cache that is eventually consistent.
# Note: Concurrent calls to update the cache while an update is underway are
# ignored.
Example: Caching an expensive function used inside a Django view.
# urls.py
import time
from django.urls import path
from django.http import HttpResponse
from dj_cache.decorators import cached
@cached(ttl_seconds=60)
def expensive_function():
time.sleep(5)
return 42
def home(request):
value = expensive_function()
return HttpResponse(f"Expensive function returned: {value}")
urlpatterns = [
path("/", home),
]
1 maintainer
Metadata
1 maintainer
Release files for dj-cache 0.1
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Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| dj_cache-0.1.tar.gz | 4.2 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| dj_cache-0.1-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 9.2 kB
Release files / dj_cache-0.1.tar.gz
| Download URL | dj_cache-0.1.tar.gz |
|---|---|
| Size | 4.2 kB |
| Tags | Source |
|
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| Uploaded via |
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Release files / dj_cache-0.1-py3-none-any.whl
| Download URL | dj_cache-0.1-py3-none-any.whl |
|---|---|
| Size | 5.0 kB |
| Tags | Python 3 |
|
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