WMI

[donagrejja]

Hi =)

Nice job on the bugfixes and additional hardware support of this application =)

I am just wondering if it's possible to maybe add WMI like before but as an alternative plugin or such ?

I know that there was a userbase of the original product that are using WMI together with desktopinfo (https://www.glenn.delahoy.com/desktopinfo/)

And ofc I am one of those using WMI queries to lookup hardware information =) but I can't get it to display newer hardware due to WMI being deprecated and older versions with WMI not supporting the hardware ;)

Anyway. Great job !

[pgrawehr]

There where two reasons WMI support has been removed:

• It was unreliable. For some reason we never fully understood, the WMI providers sometimes just didn't work and therefore it was not possible to query the information from another application.
• The WMI library is no longer officially supported in .NET 6.0. There are probably some hacks to make it work anyway, but that is ugly.

Therefore we added a new, web-request based API to replace WMI. I am aware this might break some usage scenarios, but I was assuming it is not so difficult to switch an application to the new API.

Isn't this desktopinfo tool doing the same thing? Or why would they need to work together?

[RealKodijack]

Getting rid of WMI was great, but how does one query the API?

[pgrawehr]

@RealKodijack Apparently, I never documented it.

When the web server is running, you can point your browser at http://localhost:8086 to see a web interface. Other than that, the following Json end points are implemented:

/api/available

Returns "true" (or an error if not)

/api/version

Returns the version of the server

/api/rootnode

Returns a json with the sensor tree and all the values

/api/nodes/{NodeId}

Returns a json with just the information for the given node

So the basic idea is that you would be querying /api/rootnode first to get the list of nodes, and then query /api/nodes/... to get an update. You will need to regularly query the root node again, otherwise you will not be notified of hardware changes (e.g. new USB sticks connected).

If you happen to use .NET, there's a reference implementation for a client in https://github.com/dotnet/iot/tree/main/src/devices/HardwareMonitor.

[RealKodijack]

Awesome, thanks for the quick reply. Already dug the info out of the code myself, but I'm surely not the first nor the last to wonder :-)