diff --git a/fhem/FHEM/37_Spotify.pm b/fhem/FHEM/37_Spotify.pm
index 2fa0d2f1a..ea7efe24f 100644
--- a/fhem/FHEM/37_Spotify.pm
+++ b/fhem/FHEM/37_Spotify.pm
@@ -327,7 +327,7 @@ sub Spotify_pausePlayback($) { # pause playback
 	my $name = $hash->{NAME};
 	$hash->{helper}{is_playing} = 0;
 	readingsSingleUpdate($hash, 'is_playing', 0, 1);
-	Spotify_apiRequest($hash, 'me/player/pause', undef, 'PUT', 0);
+	Spotify_apiRequest($hash, 'me/player/pause', {}, 'PUT', 0);
 	Log3 $name, 4, "$name: pause";
 	return undef;
 }
@@ -338,7 +338,7 @@ sub Spotify_resumePlayback($$) { # resume playback
 	$device_id = Spotify_getTargetDeviceID($hash, $device_id, 0); # resolve target device id
 	$hash->{helper}{is_playing} = 1;
 	readingsSingleUpdate($hash, 'is_playing', 1, 1);
-	Spotify_apiRequest($hash, 'me/player/play' . (defined $device_id ? "?device_id=$device_id" : ''), undef, 'PUT', 0);
+	Spotify_apiRequest($hash, 'me/player/play' . (defined $device_id ? "?device_id=$device_id" : ''), {}, 'PUT', 0);
 	Log3 $name, 4, "$name: resume";
 	return undef;
 }
@@ -357,7 +357,7 @@ sub Spotify_setVolume($$$$) { # set the volume
 	delete $hash->{helper}{fading} if($blocking && defined $hash->{helper}{fading}); # stop volumeFade if currently active (override)
 
 	$device_id = Spotify_getTargetDeviceID($hash, $device_id, 0); # resolve target device id
-	Spotify_apiRequest($hash, "me/player/volume?volume_percent=$volume". (defined $device_id ? "&device_id=$device_id" : ''), undef, 'PUT', $blocking);
+	Spotify_apiRequest($hash, "me/player/volume?volume_percent=$volume". (defined $device_id ? "&device_id=$device_id" : ''), {}, 'PUT', $blocking);
 	Log3 $name, 4, "$name: volume $volume" if(!defined $hash->{helper}{fading});
 	return undef;
 }
@@ -365,7 +365,7 @@ sub Spotify_setVolume($$$$) { # set the volume
 sub Spotify_skipToNext($) { # skip to next track
 	my ($hash) = @_;
 	my $name = $hash->{NAME};
-	Spotify_apiRequest($hash, 'me/player/next', undef, 'POST', 0);
+	Spotify_apiRequest($hash, 'me/player/next', encode_json {}, 'POST', 0);
 	Log3 $name, 4, "$name: skipToNext";
 	return undef;
 }
@@ -373,7 +373,7 @@ sub Spotify_skipToNext($) { # skip to next track
 sub Spotify_skipToPrevious($) { # skip to previous track
 	my ($hash) = @_;
 	my $name = $hash->{NAME};
-	Spotify_apiRequest($hash, 'me/player/previous', undef, 'POST', 0);
+	Spotify_apiRequest($hash, 'me/player/previous', encode_json {}, 'POST', 0);
 	Log3 $name, 4, "$name: skipToPrevious";
 	return undef;
 }
@@ -384,7 +384,7 @@ sub Spotify_seekToPosition($$) { # seek to position in track
 	my (undef, $minutes, $seconds) = $position =~ m/(([0-9]+):)?([0-9]+)/;
 	return 'wrong syntax: set <name> seekToPosition <position_in_s>' if(!defined $minutes && !defined $seconds);
 	$position = ($minutes * 60 + $seconds) * 1000;
-	Spotify_apiRequest($hash, "me/player/seek?position_ms=$position", undef, 'PUT', 0);
+	Spotify_apiRequest($hash, "me/player/seek?position_ms=$position", {}, 'PUT', 0);
 	return undef;
 }
 
@@ -395,7 +395,7 @@ sub Spotify_setRepeat($$) { # set the repeat mode
 	$mode = 'track' if($mode eq 'one');
 	$mode = 'context' if($mode eq 'all');
 	my $device_id = Spotify_getTargetDeviceID($hash, undef, 0);
-	Spotify_apiRequest($hash, "me/player/repeat?state=$mode". (defined $device_id ? "&device_id=$device_id" : ""), undef, 'PUT', 0);
+	Spotify_apiRequest($hash, "me/player/repeat?state=$mode". (defined $device_id ? "&device_id=$device_id" : ""), {}, 'PUT', 0);
 	Log3 $name, 4, "$name: repeat $mode";
 	return undef;
 }
@@ -406,7 +406,7 @@ sub Spotify_setShuffle($$) { # set the shuffle mode
 	return 'wrong syntax: set <name> shuffle <off,on>' if(!defined $mode || ($mode ne 'on' && $mode ne 'off'));
 	$mode = $mode eq 'on' ? 'true' : 'false';
 	my $device_id = Spotify_getTargetDeviceID($hash, undef, 0);
-	Spotify_apiRequest($hash, "me/player/shuffle?state=$mode". (defined $device_id ? "&device_id=$device_id" : ""), undef, 'PUT', 0);
+	Spotify_apiRequest($hash, "me/player/shuffle?state=$mode". (defined $device_id ? "&device_id=$device_id" : ""), {}, 'PUT', 0);
 	Log3 $name, 4, "$name: shuffle $mode";
 	return undef;
 }
@@ -668,12 +668,12 @@ sub Spotify_volumeStep($$$$) {
 		my @devices = @{$hash->{helper}{devices}};
 		foreach my $device (@devices) {
 			if(defined $device->{id} && $device->{id} eq $device_id) {
-				$nextVolume = min(100, max(0, $device->{volume_percent} + $step * $direction));
+				$nextVolume = $device->{volume_percent} + $step * $direction;
 				$device->{volume_percent} = $nextVolume;
 			}
 		}
 	} else {
-		$nextVolume = min(100, max(0, $hash->{helper}{device_active}{volume_percent} + $step * $direction));
+		$nextVolume = $hash->{helper}{device_active}{volume_percent} + $step * $direction;
 		$hash->{helper}{device_active}{volume_percent} = $nextVolume;
 	}