python - flask-cache memoize URL query string parameters as well

Question

The flask-cache extension has a @cache.memoize decorator to cache a view including the view's *args and **kwargs. Some of my views however take a URL query string as well, for example /foo/image?width=640. The decorator adds a make_cache_key method to the decorated view function that can be used to customise the cache key

However I do not know how to get the request.args outside of the normal request context.

Any ideas how to make the @cache.memoize work with URL query strings as well?

Answer 1

You can use flask-caching:

Continuation of the Flask-Cache Extension

With which you can do something like this:

@app.route("/")
@cache.cached(timeout=10, query_string=True)
def index():
    return render_template('index.html')

Docs from source code:

:param query_string: Default False. When True, the cache key
                     used will be the result of hashing the
                     ordered query string parameters. This
                     avoids creating different caches for
                     the same query just because the parameters
                     were passed in a different order. See
                     _make_cache_key_query_string() for more
                     details.