REST API Notifications - How to interpret response and how to delete entry

Help and Support
1

I’m working on a device driver to use Volumio with Hubitat home automation hubs. To this end, I’m attempting to configure the Volumio API to set up notifications that I can parse through and display on a wall tablet dashboard. I have been able to add my hub IP to the notification list, and it shows correctly at
http://volumio.local/api/v1/pushNotificationUrls. I am also capturing the event notifications within the driver.

However, I have two issues to resolve:
Issue 1) How can I delete entries from the notifications list? The documentation here states that to delete, all you have to do is make a request to the same URL that was used to add the notification. However, it’s not clear if this should be a GET, or if I need to send a POST with the same body that I used to subscribe. I tried both ways, and both failed to remove the entry.

Issue 2) The notification POST that I get is unintelligible. Instead of the nicely formatted JSON in the documentation, what I actually get back is something like this. This is obviously encoded somehow, but I don’t know how to convert it to something usable. Ideas would be appreciated.

headers:UE9TVCAvIEhUVFAvMS4xDQpBY2NlcHQ6IGFwcGxpY2F0aW9uL2pzb24NCkNvbm5lY3Rpb246IGNsb3NlDQpIb3N0OiAxOTIuMTY4LjAuMTgzOjM5NTAxDQpDb250ZW50LUxlbmd0aDogMTA2Mg0KQ29udGVudC1UeXBlOiBhcHBsaWNhdGlvbi9qc29uDQo=,

body: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

2

well, of course as soon as I posted about it, I figured out the notification is base64 encoded. So that’s worked out.

But I still can’t figure out how to remove an entry from the notification URLs.

3

Still can’t remove a URL from notifications, but conveniently(?) the notification entries are wiped after rebooting the Volumio device. This doesn’t seem like desirable behavior, but it did solve my immediate problem.