Callback

public protocol Callback : Action, Identifiable

Base protocol for Journey callbacks used as actions in a Journey step.

Conforms to Action, Identifiable, and Sendable. Each callback must be default-initializable and able to initialize itself from a JSON dictionary. The payload() method returns a serializable representation of the callback to send back to the server.

init()
Required default initializer.
Declaration
Swift

init()


                    
                    
                    initialize(with:)

Default implementation, asynchronous

Initializes this callback from a server-provided JSON dictionary and returns self (async variant).

Default Implementation

Declaration

Swift

func initialize(with json: [String : Any]) async -> any Callback

Parameters


                                json

The raw JSON dictionary describing this callback instance.

id
The unique identifier for this callback instance.
Declaration
Swift

var id: String { get }
payload()
A dictionary payload representing this callback’s data for submission.
Declaration
Swift

func payload() -> [String : Any]