Feature request: Real-time data in the chart (auto-refresh)

[Zodiac1978]

At the moment, we use a 15 minutes long transient to cache the chart data:

statify/inc/class-statify-dashboard.php

Lines 290 to 295 in 1efbb2f

	// Make cache.
	set_transient(
	'statify_data',
	$data,
	MINUTE_IN_SECONDS * 15
	);

How about updating the chart (via Ajax) if the transient is expired? Or updating the chart also every 15 minutes to show the latest possible data?

First asked here: https://wordpress.org/support/topic/auto-refresh-evert-n-minutes/

This should not impact performance and we should ask us if this will be useful for most of our users.