Can I use the command line to start a Spotify-Album?
Things I’ve tried:
volumio play open.spotify.com/album/5gpWQyfq … B4fqejgdXw
volumio play “https://open.spotify.com/album/5gpWQyfqy3zAh52aVNWuQb?si=4hDPlf-AQ6aZB4fqejgdXw”
volumio play spotify:album:5gpWQyfqy3zAh52aVNWuQb
volumio play “spotify:album:5gpWQyfqy3zAh52aVNWuQb”
The answer is always “curl: (52) Empty reply from server”
I´m not shure about the syntax of the command-line-client…
Cheers
Kristian
I think the CLI client acts on the current queue, so you would have to add your spotify album to the queue before attempting to play it.
Damn… you’re right.
I tried a bit bit local files, but I think I just restartet and stopped the existing queue. 
Is there a way to control the player and the queue apart from the UI?
I want to build a musicplayer for the kids using RFID-Cards to listen to their music.
There are other how-tos online, but I they use vlc-player. Spotify would be a great argument to use Volumio.
How far did you come with this? I also built a music box for my kids with RFID cards but now I want to upgrade the whole thing to Spotify. Help is appreciated, but I will also have a look into the API, but I am not an programming expert 
Hi there, with a significant amount of delay:
I can confirm there is a way of telling volumio to play a spotify playlist via the command-line.
I’ll post it here for the desparate users coming here in hope of finding a solution - like me, before I successfully “hacked” into the details of the API.
I’m currently on volumio 2.915 using the “Spotify 2.0.2” plugin.
The whole stuff -as mentioned elsewhere- requires a Spotify premium account.
In a nutshell, what does the trick is to use
CURL (should be pre-installed if you’re using a linux flavour)In order for the whole shebang to work, you’ll need to know the playlist URI.
That’s a bit cumbersome but actually not too hard.
Open a webbrowser and put in the following URL in the address box:
http://YOUR-VOLUMIO-IP/api/v1/browse?uri=spotify/playlists
…and of course, replace YOUR-VOLUMIO-IP with the IP address of your volumio player device.
If all works well, you’ll receive a bunch of “json-formatted text”.
Inside that curly-bracked-colon mess, you’ll probably be able to spot something similar to
,"type":"playlist","title":"XXXYYYZZZ",
where XXXYYYZZ stands for a playlist name of one of your Spotify playlists.
Now, not too far away from this, there will also be a text looking like
"uri":"spotify:user:spotify:playlist:xxxxxxxxxxxxxxxxxxxxx"}
…with “xxxxxxx” being a sequence of characters like “5XyZA4EFghZT54dKGt” or similar.
THAT part (starting with the “spotify:user…” up to the closing quotes) is the playlist URI we will need
to use later. Copy-paste it somwhere.
Next, we’ll be crafting a curl command to send to volumio.
I’ll first give an example of how the whole command-line needs to look like:
curl -i --header "Content-Type: application/json" --data '{ "service": "spop","type": "playlist", "title": "PLAYLISTNAME","uri": "spotify:user:spotify:playlist:XXXXXXXXXXXX"}' http://YOUR-VOLUMIO-IP/api/v1/replaceAndPlay
You’ll have to replace
PLAYLISTNAME …with the title of the playlist (the part where I said “XXXYYYZZZ” above)spotify:user:spotify:playlist:XXXXXXXXXXXX …with the URI thing, the part I told you to copy-paste above 
YOUR-VOLUMIO-IP …with the IP address of your volumio player, just like you did in the webbrowser’s address bar aboveOnce your command is ready, hit ENTER and keep fingers crossed.
If something goes wrong, check that
Hope this helps.
Cheers, Thomas
Hi,
Thanks for the details.
I get this error:
curl: (7) Failed to connect to 192.168.1.49 port 80: Connection refused
I can browse to http://192.168.1.49/ , I don’t see why it refuses the connection locally
Any idea?