How do I notify the availability of stock?

[tsynexus]

How do I notify the availability of stock?thank you.

Out of Stock
<button product-id="123" disabled>Add Stock</button>

In Stock
<button product-id="123">Add Stock</button>

//button[1]/@disabled
Get the value: disabled

//button[2]/@disabled
Warning, no filters were found, no change detection ran - Did the page change layout? update your Visual Filter if necessary.

[Constantin1489]

For that xpath1, the current version won't do nicely. (despite the lxml's etree support some xpath function. But I won't fix it. Because new CD will support XPath2-3.1 with elementpath lib and I found the nice trick(sissaschool/elementpath#70).)

But the unreleased new one(xpath2-3.1) will can do it. You can build it manually from the main repo if you want. (but because it will change your xpath, DO NOT FORGET BACKUP. BTW if you know sed you can rollback with 's/xpath1:/xpath:/'.)

With the new unreleased CD, xpath:boolean(count(//button[boolean(@disabled)])) will do.
https://stackoverflow.com/a/3776864/20307768

[Constantin1489]

@tsynexus 0.45.8 is released! You can use xpath2-3.1.

[dgtlmoon]

@tsynexus if the page has some text like 'not in stock' 'sold out' etc, you can use the built in re-stock monitor plugin, more information here https://changedetection.io/tutorial/how-get-product-re-stock-or-back-stock-alerts-and-notifications