Frontend API

The following requirements applies to any frontend implementation:

  • A frontend MAY do mostly whatever it wants to, including creating threads, opening TCP ports and exposing Mopidy for a group of clients.
  • A frontend MUST implement at least one Pykka actor, called the “main actor” from here on.
  • The main actor MUST accept two constructor arguments:
    • config, which is a dict structure with the entire Mopidy configuration.
    • core, which will be an ActorProxy for the core actor. This object gives access to the full Core API.
  • It MAY use additional actors to implement whatever it does, and using actors in frontend implementations is encouraged.
  • The frontend is enabled if the extension it is part of is enabled. See Extension development for more information.
  • The main actor MUST be able to start and stop the frontend when the main actor is started and stopped.
  • The frontend MAY require additional config values to be set for it to work.
  • Such config values MUST be documented.
  • The main actor MUST raise the mopidy.exceptions.FrontendError with a descriptive error message if the defined config values are not adequate for the frontend to work properly.
  • Any actor which is part of the frontend MAY implement the mopidy.core.CoreListener interface to receive notification of the specified events.

Frontend implementations

See Frontend extensions.