javascript - redux-actions Typescript 声明一个 Action

Question

目前，我尝试开发我的第一个 React & redux 和 typescript 示例，但我被困在 Action 声明中。 typescript 编译器仍然一遍又一遍地抛出相同的错误。

也许我误解了一些概念。

代码基于this教程。

很乐意提供任何帮助

图形 Action .ts

/// <reference path="../../../typings/index.d.ts"/>

import { createAction, Action } from 'redux-actions';
import * as _ from 'lodash';
import {IGraphObject} from "../components/graph/GraphObject";
import {Graph} from "../models/Graph";
import {ADD_GRAPH} from "../constants/ActionTypes";

const addGraph = createAction<Graph>(
    ADD_GRAPH,
    (graph: IGraphObject) => ({graphObject: graph})
);

export {
    addGraph
}

图形.ts

import {IGraphObject} from "../components/graph/GraphObject";

export type Graph = {
    id?: number;
    graphObject: IGraphObject
}

图形对象.ts

export interface IGraphObject {
    id?: number;
    graphConfig: IGraphConfig;
    graphInstance: any;
    initGraph(container: HTMLElement);
    addShape(shape: ICustomShapeElement);
}

typescript 编译器抛出

(11,5): error TS2345: Argument of type '(graph: IGraphObject) => { graphObject: IGraphObject; }' is not assignable to parameter of type '(...args: { id?: number; graphObject: IGraphObject; }[]) => { id?: number; graphObject: IGraphObj...'.
  Types of parameters 'graph' and 'args' are incompatible.
    Type '{ id?: number; graphObject: IGraphObject; }' is not assignable to type 'IGraphObject'.
      Property 'graphConfig' is missing in type '{ id?: number; graphObject: IGraphObject; }'.

Answer 1

解决了。查看 redux-actions 类型对我有帮助。

redux-actions 类型

export function createAction<Input, Payload>(
      actionType: string,
      payloadCreator?: PayloadCreator<Input, Payload>
): (...args: Input[]) => Action<Payload>;

解决方案

const addGraph = createAction<IGraphObject, Graph>(
    ADD_GRAPH,
    (graphObject: IGraphObject) => ({graphObject: graphObject})
);