Type Alias Callback<Payload>

Callback: (
    payload: Payload,
    message: Message<Payload>,
    unsub: (reason?: string) => void,
) => unknown

A callback passed to Hub.sub.

Type Parameters

Payload
The type of the value carried by message.

Type Declaration

- (
      payload: Payload,
      message: Message<Payload>,
      unsub: (reason?: string) => void,
  ): unknown
- Parameters
  - payload: Payload
    The payload of the message being processed.
  - message: Message<Payload>
    The message being processed.
  - unsub: (reason?: string) => void
    A function which, when called, will terminate the subscription.
  Returns unknown