Last.fm Web Services

auth.getMobileSession

Create a web service session for a user. Used for authenticating a user when the password can be inputted by the user. Only suitable for standalone mobile devices. See the authentication how-to for more. You must use HTTPS and POST in order to use this method.

Params

password (Required) : The password in plain text.
username (Required) : The last.fm username.
api_key (Required) : A Last.fm API key.
api_sig (Required) : A Last.fm method signature. See authentication for more information.

Auth

This service does not require authentication.

Sample Response

<lfm status="ok">
  <session>
    <name>MyLastFMUsername</name>
    <key>d580d57f32848f5dcf574d1ce18d78b2</key>
    <subscriber>0</subscriber>
  </session>
</lfm>
This method has other parameters which are now deprecated and should not be used.

Deprecated Behaviour

authToken parameter

A previous version of auth.getMobileSession accepted an authToken parameter in place of password, where authToken was defined as: 
authToken = md5(username + md5(password))
We recommend all clients update to the latest version as support for authToken will be removed in the future.

Errors

  • 4 : You must use POST in order to use this method.
  • 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