Increase or decrase Volume via Http API?

Tinkering Roon API
2

Hi @Zarko_Vargovic

Try using double quote instead of single quote (as far as I know single quote does not do variables).

Here’s my working bash script

#!/bin/sh

MY_VOLUME=10
echo $MY_VOLUME

curl "http://localhost:3001/roonApi/change_volume?outputId=1701aa4e166fe64eae164bfae7c5e928181e&volume=$MY_VOLUME"

Hope this helps