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react-redux-ts

v1.3.5

Published

Redux, react-redux workflow simplifier

Downloads

55

Readme

react-redux-ts

Typescript wrapper around redux and react-redux that simplifies workflow

npm i react-redux-ts

1. Simple set

Adds a common action to set any value in the store via dispatch with typechecks. Without async:

store.setStateProp({
    prop: 'myProp',
    payload: 'val'
});

And async (similar to Redux-thunk):

store.setStatePropAsync({
    prop: 'myProp',
    func: myAsyncFunction
});

Will ensure that 'payload' in SET_PROP and return value of 'func' in SET_PROP_ASYNC has the same type as property in the store.

Async version will also dispatch notifications in order:

  • start
  • success / error
  • end

Will also add both methods as props to connected react component

props.setStateProp(/* { ... } */);
props.setStatePropAsync(/* { ... } */);

2. Type actions

Allows to use type definitions as actions instead of objects.

actions.ts:
import { StateType } from '../store';
type ClearTodosAction = {
    type: 'CLEAR_TODOS';
};

type SetVisibilityFilter = {
    type: 'SET_VISIBILITY_FILTER';
    filter: StateType['filter'];
};

export type ActionTypes = ClearTodosAction | SetVisibilityFilter;
customReducer.ts:
import { ActionTypes } from '../actions';
import { StateType } from '../store';

export function customReducer(state: StateType, action: ActionTypes): StateType {
    switch (action.type) {
        case 'SET_VISIBILITY_FILTER':
            return {
                ...state,
                filter: action.filter
            }
        case 'CLEAR_TODOS':
            return {
                ...state,
                todos: []
            }
        default:
            return state;
    }
};
store.ts:
import { createStore } from 'react-redux-ts';
import { ActionTypes } from './actions';
import { customReducer } from './customReducer';

class State {
    todos: string[] = [];
    filter: 'SHOW_ALL' | 'HIDE_ALL' = 'SHOW_ALL';
    myProp: string = '';
}

// All arguments of createStore are optional. It accepts your root reducer, initial state, 
// boolean for whether or not use devtools, array of middlewares.
export const store = createStore<State, ActionTypes<State>>(
    customReducer, new State());

export type DispatchType = typeof store.dispatch;
export type StoreAction = ReturnType<typeof store.dispatch>;
export type StateType = typeof State;
AppComponent.tsx:
import { connect, PropsType } from 'react-redux-ts';
import { StateType, DispatchType } from './store.ts';

type OwnPropsType = {};

const mapStateToProps = (state: StateType, ownProps: OwnPropsType) => {
    return {
        myProp: state.myProp
    }
}
const mapDispatchToProps = (dispatch: DispatchType, ownProps: OwnPropsType) => {
    return {
        clearTodos: () => dispatch({ type: 'CLEAR_TODOS' })
    }
}
type AppComponentPropsType = PropsType<StateType, OwnPropsType, 
    ReturnType<typeof mapStateToProps>, ReturnType<typeof mapDispatchToProps>>;

const AppComponent = (props: AppComponentPropsType) => {
    return (
        <div
            onClick={() => {
                props.setStateProp({
                    prop: 'myProp',
                    payload: 'val'
                });
                props.clearTodos();
            }}
        >{props.myProp}</div>
    )
}

const connectedComponent = connect(mapStateToProps, mapDispatchToProps)(AppComponent);
export default connectedComponent;
index.tsx:
import React from 'react'
import ReactDOM from 'react-dom'
import { Provider } from 'react-redux-ts'
import store from './store'
import AppComponent from './AppComponent'

const rootElement = document.getElementById('root');
ReactDOM.render(
    <Provider store={store}>
        <AppComponent />
    </Provider>,
    rootElement
);