# track.updateNowPlaying

Used to notify Last.fm that a user has started listening to a track. Parameter names are case sensitive.

# Params

artist (Required) : The artist name.
track (Required) : The track name.
album (Optional) : The album name.
trackNumber (Optional) : The track number of the track on the album.
context (Optional) : Sub-client version (not public, only enabled for certain API keys)
mbid (Optional) : The MusicBrainz Track ID.
duration (Optional) : The length of the track in seconds.
albumArtist (Optional) : The album artist - if this differs from the track artist.
api_key (Required) : A Last.fm API key.
api_sig (Required) : A Last.fm method signature. See authentication for more information.
sk (Required) : A session key generated by authenticating a user via the authentication protocol.

# Auth

This service requires authentication. Please see our authentication how-to.
This is a write service and must be accessed with an HTTP POST request. All parameters should be sent in the POST body, including the 'method' parameter. See rest requests for more information.

# Sample Response

<?xml version='1.0' encoding='utf-8'?>
<lfm status="ok">
  <nowplaying>
    <track corrected="0">Test Track</track>
    <artist corrected="0">Test Artist</artist>
    <album corrected="0"></album>
    <albumArtist corrected="0"></albumArtist>
    <ignoredMessage code="0"></ignoredMessage>
  </nowplaying>
</lfm>

# Attributes

• code : Ignored message codes:
  • 1: Artist was ignored
  • 2: Track was ignored
  • 3: Timestamp was too old
  • 4: Timestamp was too new
  • 5: Daily scrobble limit exceeded
• corrected : '1', if this track, artist or album name was automatically corrected, '0' otherwise

# Errors

• 16 : The service is temporarily unavailable, please try again.
• 2 : Invalid service - This service does not exist
• 3 : Invalid Method - No method with that name in this package
• 4 : Authentication Failed - You do not have permissions to access the service
• 5 : Invalid format - This service doesn't exist in that format
• 6 : Invalid parameters - Your request is missing a required parameter
• 7 : Invalid resource specified
• 8 : Operation failed - Something else went wrong
• 9 : Invalid session key - Please re-authenticate
• 10 : Invalid API key - You must be granted a valid key by last.fm
• 11 : Service Offline - This service is temporarily offline. Try again later.
• 13 : Invalid method signature supplied
• 16 : There was a temporary error processing your request. Please try again
• 26 : Suspended API key - Access for your account has been suspended, please contact Last.fm
• 29 : Rate limit exceeded - Your IP has made too many requests in a short period