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no_cache

FunctionPrivateDecoratorSource

@no_cache
def func(): ...

A deocrator adding no_cache property to the flask services.

This decorator will mark the response of a service by no_cache. It is useful when the same value needs to be triggered for multiple times. For example, in some cases, users may need to click a button to download a file. If no_cache is not configured, clicking the button for the second time will not trigger any events unless the file to be served is changed.

In other words, this decorator is used for disabling the cache for some specific services.

Arguments​

No argument is needed.

Examples​

Decorate a file event​

import io
import flask
from dash_file_cache.utilities import no_cache


app = flask.Flask("demo")


@no_cache
@app.route("/")
def index():
    return flask.send_file(
        io.BytesIO("test file".encode()),
        mimetype="text/plain",
        as_attachment=True,
        download_name="test.txt",
    )


if __name__ == "__main__":
    app.run()