[1337sup3rh4x0r]96_Snapcast.pm hang after multi client update response

[thecb1]

Error

FHEM hangs after
Not a HASH reference at ./FHEM/96_Snapcast.pm line 247.
when an API response with multiple clients is received

Reproduce

snapdroid lets you set the volume of groups with >1 clients with a single slider. It concats the client update requests into one string. The API call looks like
[{"id":8,"jsonrpc":"2.0","method":"Client.SetVolume","params":{"id":"b8:27:eb:ab:24:32","volume":{"muted":false,"percent":50}}},{"id":8,"jsonrpc":"2.0","method":"Client.SetVolume","params":{"id":"08:60:6e:80:80:4c","volume":{"muted":false,"percent":50}}}]
The response from the server looks like this
[{"jsonrpc":"2.0","method":"Client.OnVolumeChanged","params":{"id":"08:60:6e:80:80:4c","volume":{"muted":false,"percent":88}}},{"jsonrpc":"2.0","method":"Client.OnVolumeChanged","params":{"id":"b8:27:eb:ab:24:32","volume":{"muted":false,"percent":81}}}]

This is where i get the error above.

[1337sup3rh4x0r]

Ok, I see what you mean now.
To be honest I am rarely using the android app so I have never tested this. I guess for this the json parsing part in the module would have do be adjusted.
I currently don't have the time to dive into that.