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我正在做一個待辦事項的應用程序,與react-typescript-redux並想從我的服務器獲取todos。當我硬編碼待辦事項時,在我的容器中使用this.props.getTodos['todo1','todo2']
,一切正常,但是當我嘗試異步執行時,使用this.props.requestTodos()
- 事實並非如此。當我使用來自服務器的this.props.requestTodos()
響應到達getTodos
actionCreator時,但由於某種原因操作對象未到達簡化器,所以狀態不會更新。我該如何解決? actionCreators:當使用redux-thunk時,操作對象沒有到達reducer
export const getTodos = (todoItems: ReadonlyArray<string>) => {
return {
type: Constants.GET_TODOS as typeof Constants.GET_TODOS,
payload: {todoItems},
};
};
export const requestTodos =() => {
return (dispatch: any) => {
// tslint:disable-next-line:no-expression-statement
axios('/todos')
.then((todos: any) => getTodos(JSON.parse(todos.data).todos))
.catch((err: any) => console.log(err));
};
};
商店:
const defaultState: IDefaultState = {
todoItems: [],
};
const store = createStore(
rootReducer,
defaultState,
applyMiddleware(
thunk,
createLogger(),
));
減速機:
const rootReducer = combineReducers({
todoItems,
});
TodoItems(減速器):
function todoItems(state = ([] as ReadonlyArray<string>), action: any): any {
switch (action.type) {
case Constants.GET_TODOS:
return [
...state,
action.payload.todoItems,
];
default:
return state;
}
}
容器組件:
class TodoList extends React.Component<IProps, {}> {
public componentDidMount(): any {
// tslint:disable-next-line:no-expression-statement
this.props.requestTodos();
}
public render(): JSX.Element {
const todoItems = this.props.todoItems.map((text, i) => (
<TodoItem key={i} text={text} />
));
return(
<div>
<ul className='todo-list'>
{todoItems}
</ul>
</div>
);
}
}
廢話,我忘了把它包裹在派送!現在它可以工作。謝啦。 – Umbrella