A Hivent Event struct.

• payload contains the actual content of the event
• meta contains supporting metadata, such as date of creation, name of producer, etc.

Example

%Hivent.Event{
  payload: %{
    "item" => 55,
    "quantity" => 10
  },
  meta: %Hivent.Event.Meta{
    created_at: <date of creation, formatted as ISO8601>
    name: "order:confirmed",
    version: 1,
    producer: "order_service",
    uuid: "3c98bb60-5658-4fea-93d7-46c00c8d9b11",
    key: "f85977a0-8f69-459f-a2a0-4aff62ff6692"
  }
}