Custom Cache

Implementing a custom cache

• Create a custom cache object by sub-classing the BaseCache object.

• Overwrite all the methods from the base class. You can also add custom bootstraping methods!

from UnleashClient.cache import BaseCache
from fcache.cache import FileCache as _Filecache

class FileCache(BaseCache):
    # This is specific for FileCache.  Depending on the cache you're using, this may look different!
    def __init__(self, name: str, directory: Optional[str] = None):
        self._cache = _FileCache(name, app_cache_dir=directory)

    def set(self, key: str, value: Any):
        self._cache[key] = value
        self._cache.sync()

    def mset(self, data: dict):
        self._cache.update(data)
        self._cache.sync()

    def get(self, key: str, default: Optional[Any] = None):
        return self._cache.get(key, default)

    def exists(self, key: str):
        return key in self._cache

    def destroy(self):
        return self._cache.delete()

• Initialize your custom cache object and pass it into Unleash using the cache argument.