Class Saga<AR, A>

Saga is a datatype that represents the central point of control deciding what to execute next A. It is responsible for mapping different events from aggregates into action results AR that the Saga then can use to calculate the next actions A to be mapped to command of other aggregates.

Author

Иван Дугалић / Ivan Dugalic /

Idugalic

Type Parameters

AR
Action Result type
A
Action type

Implements

ISaga<AR, A>

Index

Constructors

constructor

new Saga<AR, A>(react): Saga<AR, A>
Type Parameters
- AR
- A
Parameters
- react: ((actionResult) => readonly A[])
  A function/lambda that takes input state of type AR, and returns the list of actions A[]>.
  - - (actionResult): readonly A[]
    - Parameters
      actionResult: AR
      Returns readonly A[]
Returns Saga<AR, A>
- Defined in lib/domain/saga.ts:43

Properties

`Readonly` react

react: ((actionResult) => readonly A[])

A function/lambda that takes input state of type AR, and returns the list of actions A[]>.

Type declaration

- (actionResult): readonly A[]
- Parameters
  - actionResult: AR
  Returns readonly A[]

Methods

combine

combine<AR2, A2>(saga2): Saga<AR | AR2, A | A2>
Combines two choreography sagas into one orchestrating Saga
Type Parameters
- AR2
- A2
Parameters
- saga2: Saga<AR2, A2>
  second Saga
Returns Saga<AR | AR2, A | A2>
- Defined in lib/domain/saga.ts:68

mapContraOnActionResult

mapContraOnActionResult<ARn>(f): Saga<ARn, A>
Left map on AR/ActionResult parameter - Contravariant
Type Parameters
- ARn
  New Action Result
Parameters
- f: ((arn) => AR)
  - - (arn): AR
    - Parameters
      arn: ARn
      Returns AR
Returns Saga<ARn, A>
- Defined in lib/domain/saga.ts:50

mapOnAction

mapOnAction<An>(f): Saga<AR, An>
Right map on A/Action parameter - Covariant
Type Parameters
- An
  New Action
Parameters
- f: ((a) => An)
  - - (a): An
    - Parameters
      a: A
      Returns An
Returns Saga<AR, An>
- Defined in lib/domain/saga.ts:59

Class Saga<AR, A>

Author

Idugalic

Type Parameters

Implements

Index

Constructors

Properties

Methods

Constructors

constructor

Type Parameters

Parameters

Parameters

Returns readonly A[]

Returns Saga<AR, A>

Properties

Readonly react

Type declaration

Parameters

Returns readonly A[]

Methods

combine

Type Parameters

Parameters

Returns Saga<AR | AR2, A | A2>

mapContraOnActionResult

Type Parameters

Parameters

Parameters

Returns AR

Returns Saga<ARn, A>

mapOnAction

Type Parameters

Parameters

Parameters

Returns An

Returns Saga<AR, An>

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`Readonly` react