LoggerMiddleware that logs the action and state when each action is received When an action is dispatched, the LoggerMiddleware will print information related to it in the console.

Example

Adding LoggerMiddleware

let store = Suas.createStore(
  reducer: ...,
  middleware: LoggerMiddleware()
)

When actions are dispatched, you get something similar to this printed to the console.

┌───→ Action: IncrementAction @19:15:39.419
├─ Prev state ► State(innerState: ["Counter": CounterExample.Counter(value: 0)])
├─ Action     ► IncrementAction(incrementValue: 1)
├─ Next state ► State(innerState: ["Counter": CounterExample.Counter(value: 1)])
└──────────────────────────────────────────

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public struct LoggerMiddleware: Middleware

Create an AsyncAction inline by passing a block to the init Check AsyncAction for more info

SeeAlso:

• AsyncAction

Example

Performing an async network request

let action = BlockAsyncAction { getState, dispatch in

  // Read the current state from the Store
  getState()

  // First dispatch some action syncrhonously
  dispatch(SomeAction(...))

  let session = URLSession(configuration: .default)
  // perform a dataTask
  session.dataTask(with: urlRequest) { data, response, error in

    if let data = data {
      // Do something with the data
       dispatch(RequestSucceeded(data: data))

    } else if let error = error {

       // Error happenend
       dispatch(RequestFaile(data: data))
    }
  }
}

store.dispatch(action: MyURLAsyncAction())

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public struct BlockAsyncAction: AsyncAction

Async Middleware handles actions of type AsyncAction

AsyncAction are not dispatched to the reducer When AsyncMiddleware intercepts an AsyncAction it does the following:

1. Call action.execute on that action
2. the action execute is executed which receives the getState and dispatch function as its parameters
3. the execute calls dispatch as many times as wanted, dispatching new actions (can also disptach new AsyncAction)

SeeAlso:

• AsyncAction

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public struct AsyncMiddleware: Middleware

Structure that represents the store state. The store state is kept as a Dictionary with String Keys and Any Values ([String: Any])

For example, the state with two struct looks like:

[
  "TodoItems": TodoItems(....),
  "AppSettings": AppSettings(....)
]

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public struct State

Subscription structure that represents a listener subscription. When adding a listener you get a subscription back. You can use this subscription to remove the listener, notify about the current state or link the listener lifecycle with an object.

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public struct Subscription<StateType>

Subscription structure that represents a listener subscription. When adding a listener you get a subscription back. You can use this subscription to remove the listener, notify about the current state or link the listener lifecycle with an object.

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public struct ActionSubscription