A automatically-generated global list of federation modules which can queried by activity and/or object type.

To add a module to this list, you should declare @behaviour Bonfire.Federate.ActivityPub.FederationModules in it and define a federation_module/0 function which returns a list of object and/or activity types which that module handles.

Example:

@behaviour Bonfire.Federate.ActivityPub.FederationModules
def federation_module,
  do: [
    "Announce",
    {"Create", "Announce"},
    {"Undo", "Announce"},
    {"Delete", "Announce"}
  ]

You should also then implement these two functions:

• for outgoing federation: ap_publish_activity(subject_struct, verb, object_struct)
• for incoming federation: ap_receive_activity(subject_struct, activity_json, object_json)