Is there an API for that?
You can use the paths API for that: call
overwolf.io.paths.localAppData and concatenate your extension id and your app version to it:
Overwolf.io.paths.localAppData + "/overwolf/extensions/[your extension id]/[version]"
Where version can be retrieved from the manifest.
Another trick is to use the simpleio plugin to get the paths.
@eransharv little typo “overwolf” not “Overwolf”
Btw, this way doesnt work if extension is loaded as unpacked while developing. Almost in my case, my app is not in %localappdata%\Overwolf\extensions\etc etc" while testing it.
Thanks for the comment! make sense.
I added this example and note to the new dev site (which is not live yet).