getInterface should return error if interface does not exist

[sidorares]

see #38

[sdumetz]

I'm looking for a way to check for a dbus service and fall back to command line calls with child_process if not available.

I see this issue is 1 year old. What's your position on this and do you want help on searching a solution?

Or is there a more simple way of checking for a service's presence before calling getInterface()?

[sdumetz]

OK my bad it seems to work as expected. An error in my code and this open issue led me to the wrong conclusions. Sorry for the trouble.

[sidorares]

np. I'll need to check if this can be closed.

You can use ListName call to get all running services and later introspect service starting with / to see if interface is supported