├── .env ├── .gitignore ├── README.md ├── package.json ├── public ├── favicon.ico ├── index.html ├── logo192.png ├── logo512.png ├── manifest.json └── robots.txt ├── src ├── App.css ├── App.test.tsx ├── App.tsx ├── components │ ├── post.tsx │ └── postList.tsx ├── containers │ ├── __test__ │ │ └── postListContainer.spec.tsx │ └── postListContainer.tsx ├── index.css ├── index.tsx ├── logo.svg ├── react-app-env.d.ts ├── serviceWorker.ts └── state │ ├── configureStore.dev.ts │ ├── ducks │ ├── index.ts │ └── post │ │ ├── __tests__ │ │ ├── __mockData__ │ │ │ └── postsData.json │ │ ├── actions.spec.ts │ │ ├── reducers.spec.ts │ │ └── sagas.spec.ts │ │ ├── actions.ts │ │ ├── reducers.ts │ │ ├── sagas.ts │ │ └── types.ts │ ├── index.ts │ ├── middlewares │ └── sagas.ts │ └── utils │ └── apiCaller.ts ├── tsconfig.json └── yarn.lock /.env: -------------------------------------------------------------------------------- 1 | REACT_APP_JSON_PLACEHOLDER=https://jsonplaceholder.typicode.com -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files. 2 | 3 | # dependencies 4 | /node_modules 5 | /.pnp 6 | .pnp.js 7 | 8 | # testing 9 | /coverage 10 | 11 | # production 12 | /build 13 | 14 | # misc 15 | .DS_Store 16 | .env.local 17 | .env.development.local 18 | .env.test.local 19 | .env.production.local 20 | 21 | npm-debug.log* 22 | yarn-debug.log* 23 | yarn-error.log* 24 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Scalable Redux architecture for React Projects with Redux-Saga and Typescript 2 | 3 | ## Starting Project 4 | 5 | `yarn start` 6 | 7 | ## Runnign Tests 8 | 9 | `yarn test` 10 | 11 | ## Dependencies 12 | 13 | - redux@4.0.4 14 | - react-redux@7.1.0 15 | - redux-saga@1.0.5 16 | - redux-saga-test-plan@4.0.0-beta.4 17 | - typesafe-actions@4.4.2 18 | - enzyme@3.10.0 19 | - redux-mock-store@1.5.3 20 | - enzyme-adapter-react-16@1.14.0 21 | 22 | ## Folder Structure 23 | 24 | ``` 25 | src 26 | ├── App.css 27 | ├── App.test.tsx 28 | ├── App.tsx 29 | ├── components 30 | │ ├── post.tsx 31 | │ └── postList.tsx 32 | ├── containers 33 | │ ├── __tests__ 34 | │ │ └── postList.container.spec.tsx 35 | │ └── postList.tsx 36 | ├── index.css 37 | ├── index.tsx 38 | ├── logo.svg 39 | ├── react-app-env.d.ts 40 | ├── serviceWorker.ts 41 | └── state 42 | ├── configureStore.dev.ts 43 | ├── ducks 44 | │ ├── index.ts 45 | │ └── post 46 | │ ├── __tests__ 47 | │ │ ├── __mockData__ 48 | │ │ ├── actions.spec.ts 49 | │ │ │ └── postsData.json 50 | │ │ ├── reducers.spec.ts 51 | │ │ └── sagas.spec.ts 52 | │ ├── actions.ts 53 | │ ├── reducers.ts 54 | │ ├── sagas.ts 55 | │ └── types.ts 56 | ├── index.ts 57 | ├── middlewares 58 | │ └── saga.ts 59 | └── utils 60 | └── apiCaller.ts 61 | ``` 62 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "my-app-test", 3 | "version": "0.1.0", 4 | "private": true, 5 | "dependencies": { 6 | "@types/jest": "24.0.18", 7 | "@types/node": "12.7.3", 8 | "@types/react": "16.9.2", 9 | "@types/react-dom": "16.9.0", 10 | "enzyme": "3.10.0", 11 | "enzyme-adapter-react-16": "1.14.0", 12 | "eslint-utils": "^1.4.1", 13 | "react": "^16.9.0", 14 | "react-dom": "^16.9.0", 15 | "react-redux": "7.1.0", 16 | "react-scripts": "3.1.1", 17 | "redux": "4.0.4", 18 | "redux-mock-store": "1.5.3", 19 | "redux-saga": "1.0.5", 20 | "redux-saga-test-plan": "4.0.0-beta.4", 21 | "typesafe-actions": "4.4.2", 22 | "typescript": "3.6.2" 23 | }, 24 | "scripts": { 25 | "start": "react-scripts start", 26 | "build": "react-scripts build", 27 | "test": "react-scripts test", 28 | "eject": "react-scripts eject" 29 | }, 30 | "eslintConfig": { 31 | "extends": "react-app" 32 | }, 33 | "browserslist": { 34 | "production": [ 35 | ">0.2%", 36 | "not dead", 37 | "not op_mini all" 38 | ], 39 | "development": [ 40 | "last 1 chrome version", 41 | "last 1 firefox version", 42 | "last 1 safari version" 43 | ] 44 | }, 45 | "devDependencies": { 46 | "@types/enzyme": "3.10.3", 47 | "@types/enzyme-adapter-react-16": "1.0.5", 48 | "@types/react-redux": "7.1.1", 49 | "@types/redux-mock-store": "1.0.1" 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /public/favicon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ersah123/scalable-react-redux-saga/1cb1a9bb1025b6f7f4f2a35724badcfcd41028cd/public/favicon.ico -------------------------------------------------------------------------------- /public/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 12 | 13 | 17 | 18 | 27 | React App 28 | 29 | 30 | 31 |
32 | 42 | 43 | 44 | -------------------------------------------------------------------------------- /public/logo192.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ersah123/scalable-react-redux-saga/1cb1a9bb1025b6f7f4f2a35724badcfcd41028cd/public/logo192.png -------------------------------------------------------------------------------- /public/logo512.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ersah123/scalable-react-redux-saga/1cb1a9bb1025b6f7f4f2a35724badcfcd41028cd/public/logo512.png -------------------------------------------------------------------------------- /public/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "short_name": "React App", 3 | "name": "Create React App Sample", 4 | "icons": [ 5 | { 6 | "src": "favicon.ico", 7 | "sizes": "64x64 32x32 24x24 16x16", 8 | "type": "image/x-icon" 9 | }, 10 | { 11 | "src": "logo192.png", 12 | "type": "image/png", 13 | "sizes": "192x192" 14 | }, 15 | { 16 | "src": "logo512.png", 17 | "type": "image/png", 18 | "sizes": "512x512" 19 | } 20 | ], 21 | "start_url": ".", 22 | "display": "standalone", 23 | "theme_color": "#000000", 24 | "background_color": "#ffffff" 25 | } 26 | -------------------------------------------------------------------------------- /public/robots.txt: -------------------------------------------------------------------------------- 1 | # https://www.robotstxt.org/robotstxt.html 2 | User-agent: * 3 | -------------------------------------------------------------------------------- /src/App.css: -------------------------------------------------------------------------------- 1 | .App { 2 | text-align: center; 3 | } 4 | 5 | .App-logo { 6 | animation: App-logo-spin infinite 20s linear; 7 | height: 40vmin; 8 | pointer-events: none; 9 | } 10 | 11 | .App-header { 12 | background-color: #282c34; 13 | min-height: 100vh; 14 | display: flex; 15 | flex-direction: column; 16 | align-items: center; 17 | justify-content: center; 18 | font-size: calc(10px + 2vmin); 19 | color: white; 20 | } 21 | 22 | .App-link { 23 | color: #61dafb; 24 | } 25 | 26 | @keyframes App-logo-spin { 27 | from { 28 | transform: rotate(0deg); 29 | } 30 | to { 31 | transform: rotate(360deg); 32 | } 33 | } 34 | -------------------------------------------------------------------------------- /src/App.test.tsx: -------------------------------------------------------------------------------- 1 | import React from 'react'; 2 | import ReactDOM from 'react-dom'; 3 | import App from './App'; 4 | 5 | it('renders without crashing', () => { 6 | const div = document.createElement('div'); 7 | ReactDOM.render(, div); 8 | ReactDOM.unmountComponentAtNode(div); 9 | }); 10 | -------------------------------------------------------------------------------- /src/App.tsx: -------------------------------------------------------------------------------- 1 | import React from "react"; 2 | import { Provider } from "react-redux"; 3 | import "./App.css"; 4 | import PostListContainer from "./containers/postListContainer"; 5 | import configureStore from "./state"; 6 | const initialState = (window as any).initialReduxState; 7 | const store = configureStore(initialState); 8 | const App: React.FC = () => { 9 | return ( 10 | 11 | 12 | 13 | ); 14 | }; 15 | export default App; 16 | -------------------------------------------------------------------------------- /src/components/post.tsx: -------------------------------------------------------------------------------- 1 | import React from "react"; 2 | 3 | type props = { 4 | title: string; 5 | }; 6 | 7 | const Post: React.FC = ({ title }: props) => { 8 | return
  • {title}
    • ; 9 | }; 10 | 11 | export default Post; 12 | -------------------------------------------------------------------------------- /src/components/postList.tsx: -------------------------------------------------------------------------------- 1 | import React, { useEffect } from "react"; 2 | import { 3 | IDispatchToProps, 4 | IPostRaw, 5 | IPostState 6 | } from "../state/ducks/post/types"; 7 | import Post from "./post"; 8 | 9 | type AllProps = IPostState & IDispatchToProps; 10 | 11 | const PostList: React.FC = ({ data, fetchPosts }: AllProps) => { 12 | useEffect(() => { 13 | fetchPosts(); 14 | }, [fetchPosts]); 15 | return ( 16 |
    17 |
      18 | {data.map((post: IPostRaw) => ( 19 | 20 | ))} 21 |
    22 |
    23 | ); 24 | }; 25 | 26 | export default PostList; 27 | -------------------------------------------------------------------------------- /src/containers/__test__/postListContainer.spec.tsx: -------------------------------------------------------------------------------- 1 | import { configure, mount } from "enzyme"; 2 | import Adapter from "enzyme-adapter-react-16"; 3 | import React from "react"; 4 | import { Provider } from "react-redux"; 5 | import configureStore from "redux-mock-store"; 6 | import PostList from "../../components/postList"; 7 | import { initialState } from "../../state/ducks/post/reducers"; 8 | import PostListContainer from "../postListContainer"; 9 | 10 | configure({ adapter: new Adapter() }); 11 | const mockStore = configureStore(); 12 | 13 | describe("container ", () => { 14 | let wrapper, store, container, component: any; 15 | beforeEach(() => { 16 | store = mockStore({ post: initialState }); 17 | 18 | store.dispatch = jest.fn(); 19 | 20 | wrapper = mount( 21 | 22 | 23 | 24 | ); 25 | 26 | container = wrapper.find(PostListContainer); 27 | component = container.find(PostList); 28 | }); 29 | 30 | it("should render both the container and the component", () => { 31 | expect(container.length).toBeTruthy(); 32 | expect(component.length).toBeTruthy(); 33 | }); 34 | 35 | it("should map state to props", () => { 36 | const expectedPropKeys = ["loading", "errors", "data"]; 37 | 38 | expect(Object.keys(component.props())).toEqual( 39 | expect.arrayContaining(expectedPropKeys) 40 | ); 41 | }); 42 | 43 | it("should map dispatch to props", () => { 44 | const expectedPropKeys = ["fetchPosts"]; 45 | 46 | expect(Object.keys(component.props())).toEqual( 47 | expect.arrayContaining(expectedPropKeys) 48 | ); 49 | }); 50 | }); 51 | -------------------------------------------------------------------------------- /src/containers/postListContainer.tsx: -------------------------------------------------------------------------------- 1 | import React, { useCallback } from "react"; 2 | import { useDispatch, useSelector } from "react-redux"; 3 | import PostList from "../components/postList"; 4 | import { IApplicationState } from "../state/ducks/index"; 5 | import { fetchPosts } from "../state/ducks/post/actions"; 6 | import { IPostState } from "../state/ducks/post/types"; 7 | 8 | const PostListContainer = () => { 9 | const dispatch = useDispatch(); 10 | 11 | const stateToProps: IPostState = useSelector( 12 | ({ post }: IApplicationState) => ({ 13 | loading: post.loading, 14 | errors: post.errors, 15 | data: post.data 16 | }) 17 | ); 18 | 19 | const dispatchToProps = { 20 | fetchPosts: useCallback(() => dispatch(fetchPosts()), [dispatch]) 21 | }; 22 | 23 | return ; 24 | }; 25 | 26 | export default PostListContainer; 27 | -------------------------------------------------------------------------------- /src/index.css: -------------------------------------------------------------------------------- 1 | body { 2 | margin: 0; 3 | font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 4 | 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', 5 | sans-serif; 6 | -webkit-font-smoothing: antialiased; 7 | -moz-osx-font-smoothing: grayscale; 8 | } 9 | 10 | code { 11 | font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', 12 | monospace; 13 | } 14 | -------------------------------------------------------------------------------- /src/index.tsx: -------------------------------------------------------------------------------- 1 | import React from 'react'; 2 | import ReactDOM from 'react-dom'; 3 | import './index.css'; 4 | import App from './App'; 5 | import * as serviceWorker from './serviceWorker'; 6 | 7 | ReactDOM.render(, document.getElementById('root')); 8 | 9 | // If you want your app to work offline and load faster, you can change 10 | // unregister() to register() below. Note this comes with some pitfalls. 11 | // Learn more about service workers: https://bit.ly/CRA-PWA 12 | serviceWorker.unregister(); 13 | -------------------------------------------------------------------------------- /src/logo.svg: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /src/react-app-env.d.ts: -------------------------------------------------------------------------------- 1 | /// 2 | -------------------------------------------------------------------------------- /src/serviceWorker.ts: -------------------------------------------------------------------------------- 1 | // This optional code is used to register a service worker. 2 | // register() is not called by default. 3 | 4 | // This lets the app load faster on subsequent visits in production, and gives 5 | // it offline capabilities. However, it also means that developers (and users) 6 | // will only see deployed updates on subsequent visits to a page, after all the 7 | // existing tabs open on the page have been closed, since previously cached 8 | // resources are updated in the background. 9 | 10 | // To learn more about the benefits of this model and instructions on how to 11 | // opt-in, read https://bit.ly/CRA-PWA 12 | 13 | const isLocalhost = Boolean( 14 | window.location.hostname === 'localhost' || 15 | // [::1] is the IPv6 localhost address. 16 | window.location.hostname === '[::1]' || 17 | // 127.0.0.1/8 is considered localhost for IPv4. 18 | window.location.hostname.match( 19 | /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/ 20 | ) 21 | ); 22 | 23 | type Config = { 24 | onSuccess?: (registration: ServiceWorkerRegistration) => void; 25 | onUpdate?: (registration: ServiceWorkerRegistration) => void; 26 | }; 27 | 28 | export function register(config?: Config) { 29 | if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { 30 | // The URL constructor is available in all browsers that support SW. 31 | const publicUrl = new URL( 32 | (process as { env: { [key: string]: string } }).env.PUBLIC_URL, 33 | window.location.href 34 | ); 35 | if (publicUrl.origin !== window.location.origin) { 36 | // Our service worker won't work if PUBLIC_URL is on a different origin 37 | // from what our page is served on. This might happen if a CDN is used to 38 | // serve assets; see https://github.com/facebook/create-react-app/issues/2374 39 | return; 40 | } 41 | 42 | window.addEventListener('load', () => { 43 | const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; 44 | 45 | if (isLocalhost) { 46 | // This is running on localhost. Let's check if a service worker still exists or not. 47 | checkValidServiceWorker(swUrl, config); 48 | 49 | // Add some additional logging to localhost, pointing developers to the 50 | // service worker/PWA documentation. 51 | navigator.serviceWorker.ready.then(() => { 52 | console.log( 53 | 'This web app is being served cache-first by a service ' + 54 | 'worker. To learn more, visit https://bit.ly/CRA-PWA' 55 | ); 56 | }); 57 | } else { 58 | // Is not localhost. Just register service worker 59 | registerValidSW(swUrl, config); 60 | } 61 | }); 62 | } 63 | } 64 | 65 | function registerValidSW(swUrl: string, config?: Config) { 66 | navigator.serviceWorker 67 | .register(swUrl) 68 | .then(registration => { 69 | registration.onupdatefound = () => { 70 | const installingWorker = registration.installing; 71 | if (installingWorker == null) { 72 | return; 73 | } 74 | installingWorker.onstatechange = () => { 75 | if (installingWorker.state === 'installed') { 76 | if (navigator.serviceWorker.controller) { 77 | // At this point, the updated precached content has been fetched, 78 | // but the previous service worker will still serve the older 79 | // content until all client tabs are closed. 80 | console.log( 81 | 'New content is available and will be used when all ' + 82 | 'tabs for this page are closed. See https://bit.ly/CRA-PWA.' 83 | ); 84 | 85 | // Execute callback 86 | if (config && config.onUpdate) { 87 | config.onUpdate(registration); 88 | } 89 | } else { 90 | // At this point, everything has been precached. 91 | // It's the perfect time to display a 92 | // "Content is cached for offline use." message. 93 | console.log('Content is cached for offline use.'); 94 | 95 | // Execute callback 96 | if (config && config.onSuccess) { 97 | config.onSuccess(registration); 98 | } 99 | } 100 | } 101 | }; 102 | }; 103 | }) 104 | .catch(error => { 105 | console.error('Error during service worker registration:', error); 106 | }); 107 | } 108 | 109 | function checkValidServiceWorker(swUrl: string, config?: Config) { 110 | // Check if the service worker can be found. If it can't reload the page. 111 | fetch(swUrl) 112 | .then(response => { 113 | // Ensure service worker exists, and that we really are getting a JS file. 114 | const contentType = response.headers.get('content-type'); 115 | if ( 116 | response.status === 404 || 117 | (contentType != null && contentType.indexOf('javascript') === -1) 118 | ) { 119 | // No service worker found. Probably a different app. Reload the page. 120 | navigator.serviceWorker.ready.then(registration => { 121 | registration.unregister().then(() => { 122 | window.location.reload(); 123 | }); 124 | }); 125 | } else { 126 | // Service worker found. Proceed as normal. 127 | registerValidSW(swUrl, config); 128 | } 129 | }) 130 | .catch(() => { 131 | console.log( 132 | 'No internet connection found. App is running in offline mode.' 133 | ); 134 | }); 135 | } 136 | 137 | export function unregister() { 138 | if ('serviceWorker' in navigator) { 139 | navigator.serviceWorker.ready.then(registration => { 140 | registration.unregister(); 141 | }); 142 | } 143 | } 144 | -------------------------------------------------------------------------------- /src/state/configureStore.dev.ts: -------------------------------------------------------------------------------- 1 | import { applyMiddleware, createStore, Store } from "redux"; 2 | import { IApplicationState, rootReducer, rootSaga } from "./ducks/index"; 3 | import sagaMiddleware from "./middlewares/sagas"; 4 | 5 | export default function configureStore( 6 | initialState: IApplicationState 7 | ): Store { 8 | const middlewares = applyMiddleware(sagaMiddleware); // Create Store 9 | const store = createStore(rootReducer, initialState, middlewares); 10 | 11 | sagaMiddleware.run(rootSaga); 12 | 13 | return store; 14 | } 15 | -------------------------------------------------------------------------------- /src/state/ducks/index.ts: -------------------------------------------------------------------------------- 1 | import { combineReducers } from "redux"; 2 | import { all, fork } from "redux-saga/effects"; 3 | import { 4 | Action, 5 | MetaAction, 6 | PayloadAction, 7 | TypeConstant 8 | } from "typesafe-actions"; 9 | import { postReducer } from "./post/reducers"; 10 | import postSaga from "./post/sagas"; 11 | import { IPostState } from "./post/types"; 12 | // The top-level state object 13 | export interface IApplicationState { 14 | post: IPostState; 15 | } 16 | export interface IMetaAction extends MetaAction {} 17 | export interface IReducerAction 18 | extends Action, 19 | PayloadAction {} 20 | export const rootReducer = combineReducers({ 21 | post: postReducer 22 | }); 23 | export function* rootSaga() { 24 | yield all([fork(postSaga)]); 25 | } 26 | interface IMeta { 27 | method: string; 28 | route: string; 29 | } 30 | -------------------------------------------------------------------------------- /src/state/ducks/post/__tests__/__mockData__/postsData.json: -------------------------------------------------------------------------------- 1 | 2 | [ 3 | { 4 | "userId": 1, 5 | "id": 1, 6 | "title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit", 7 | "body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto" 8 | }, 9 | { 10 | "userId": 1, 11 | "id": 2, 12 | "title": "qui est esse", 13 | "body": "est rerum tempore vitae\nsequi sint nihil reprehenderit dolor beatae ea dolores neque\nfugiat blanditiis voluptate porro vel nihil molestiae ut reiciendis\nqui aperiam non debitis possimus qui neque nisi nulla" 14 | }, 15 | { 16 | "userId": 1, 17 | "id": 3, 18 | "title": "ea molestias quasi exercitationem repellat qui ipsa sit aut", 19 | "body": "et iusto sed quo iure\nvoluptatem occaecati omnis eligendi aut ad\nvoluptatem doloribus vel accusantium quis pariatur\nmolestiae porro eius odio et labore et velit aut" 20 | } 21 | ] 22 | 23 | -------------------------------------------------------------------------------- /src/state/ducks/post/__tests__/actions.spec.ts: -------------------------------------------------------------------------------- 1 | import { action } from "typesafe-actions"; 2 | import { fetchPosts, fetchPostsSuccess } from "../actions"; 3 | import { PostActionTypes } from "../types"; 4 | import * as postData from "./__mockData__/postsData.json"; 5 | 6 | describe("post actions", () => { 7 | it("should create an action to fetch all posts", () => { 8 | const expectedAction = action(PostActionTypes.FETCH_POSTS, [], { 9 | method: "get", 10 | route: "/posts" 11 | }); 12 | 13 | expect(fetchPosts()).toEqual(expectedAction); 14 | }); 15 | 16 | it("should create an success action", () => { 17 | const expectedAction = action( 18 | PostActionTypes.FETCH_POSTS_SUCCESS, 19 | postData 20 | ); 21 | 22 | expect(fetchPostsSuccess(postData)).toEqual(expectedAction); 23 | }); 24 | }); 25 | -------------------------------------------------------------------------------- /src/state/ducks/post/__tests__/reducers.spec.ts: -------------------------------------------------------------------------------- 1 | import { fetchPosts, fetchPostsSuccess } from "../actions"; 2 | import { initialState, postReducer } from "../reducers"; 3 | import * as postData from "./__mockData__/postsData.json"; 4 | describe("post reducer", () => { 5 | it("should return initial state", () => { 6 | expect( 7 | postReducer(initialState, { type: "no type", payload: null }) 8 | ).toEqual(initialState); 9 | }); 10 | it("should handle fetching all posts", () => { 11 | expect(postReducer(initialState, fetchPosts())).toEqual({ 12 | ...initialState, 13 | loading: true 14 | }); 15 | }); 16 | it("should handle all data successfully fetch post", () => { 17 | expect(postReducer(initialState, fetchPostsSuccess(postData))).toEqual({ 18 | ...initialState, 19 | data: postData 20 | }); 21 | }); 22 | }); 23 | -------------------------------------------------------------------------------- /src/state/ducks/post/__tests__/sagas.spec.ts: -------------------------------------------------------------------------------- 1 | import { expectSaga } from "redux-saga-test-plan"; 2 | import * as matchers from "redux-saga-test-plan/matchers"; 3 | import apiCaller from "../../../utils/apiCaller"; 4 | import { fetchPosts, fetchPostsSuccess } from "../actions"; 5 | import postSaga from "../sagas"; 6 | import * as postData from "./__mockData__/postsData.json"; 7 | 8 | describe("post saga", () => { 9 | it("should handle successfully fetching posts", () => { 10 | return ( 11 | expectSaga(postSaga) 12 | .provide([[matchers.call.fn(apiCaller), postData]]) 13 | // Assert that the 'put' will eventually happen 14 | .put(fetchPostsSuccess(postData)) 15 | // Dispatch any actions that the saga will 'take' 16 | .dispatch(fetchPosts()) 17 | // Start the test, return a Promise 18 | .run() 19 | ); 20 | }); 21 | }); 22 | -------------------------------------------------------------------------------- /src/state/ducks/post/actions.ts: -------------------------------------------------------------------------------- 1 | import { action } from "typesafe-actions"; 2 | import { IPostRaw, PostActionTypes } from "./types"; 3 | export const fetchPosts = () => 4 | action(PostActionTypes.FETCH_POSTS, [], { 5 | method: "get", 6 | route: "/posts" 7 | }); 8 | export const fetchPostsSuccess = (data: IPostRaw[]) => 9 | action(PostActionTypes.FETCH_POSTS_SUCCESS, data); 10 | export const fetchPostsError = (message: string) => 11 | action(PostActionTypes.FETCH_POSTS_ERROR, message); 12 | -------------------------------------------------------------------------------- /src/state/ducks/post/reducers.ts: -------------------------------------------------------------------------------- 1 | import { Action, PayloadAction, TypeConstant } from "typesafe-actions"; 2 | import { IPostRaw, IPostState, PostActionTypes } from "./types"; 3 | export const initialState: IPostState = { 4 | data: [], 5 | errors: [], 6 | loading: false 7 | }; 8 | export const postReducer = ( 9 | state: IPostState = initialState, 10 | action: Action & PayloadAction 11 | ): IPostState => { 12 | switch (action.type) { 13 | case PostActionTypes.FETCH_POSTS: { 14 | return { ...state, loading: true }; 15 | } 16 | case PostActionTypes.FETCH_POSTS_SUCCESS: { 17 | return { ...initialState, data: action.payload }; 18 | } 19 | case PostActionTypes.FETCH_POSTS_ERROR: { 20 | return { 21 | ...state 22 | }; 23 | } 24 | default: 25 | return state; 26 | } 27 | }; 28 | -------------------------------------------------------------------------------- /src/state/ducks/post/sagas.ts: -------------------------------------------------------------------------------- 1 | import { all, call, fork, put, takeEvery } from "redux-saga/effects"; 2 | import { IMetaAction } from ".."; 3 | import apiCaller from "../../utils/apiCaller"; 4 | import { fetchPostsError, fetchPostsSuccess } from "./actions"; 5 | import { IPostRaw, PostActionTypes } from "./types"; 6 | 7 | /** 8 | * @desc Business logic of effect. 9 | */ 10 | function* handleFetch(action: IMetaAction): Generator { 11 | try { 12 | const res: IPostRaw[] | any = yield call( 13 | apiCaller, 14 | action.meta.method, 15 | action.meta.route 16 | ); 17 | 18 | yield put(fetchPostsSuccess(res)); 19 | } catch (err) { 20 | if (err instanceof Error) { 21 | yield put(fetchPostsError(err.stack!)); 22 | } else { 23 | yield put(fetchPostsError("An unknown error occured.")); 24 | } 25 | } 26 | } 27 | 28 | /** 29 | * @desc Watches every specified action and runs effect method and passes action args to it 30 | */ 31 | function* watchFetchRequest(): Generator { 32 | yield takeEvery(PostActionTypes.FETCH_POSTS, handleFetch); 33 | } 34 | 35 | /** 36 | * @desc saga init, forks in effects, other sagas 37 | */ 38 | export default function* postSaga() { 39 | yield all([fork(watchFetchRequest)]); 40 | } 41 | -------------------------------------------------------------------------------- /src/state/ducks/post/types.ts: -------------------------------------------------------------------------------- 1 | import { IMetaAction } from ".."; 2 | export interface IPostState { 3 | readonly data: IPostRaw[]; 4 | readonly loading: boolean; 5 | readonly errors: []; 6 | } 7 | export type ApiResponse = Record; 8 | export interface IPostRaw extends ApiResponse { 9 | id: number; 10 | title: string; 11 | body: string; 12 | userId: number; 13 | } 14 | export const PostActionTypes = { 15 | FETCH_POSTS: "@@post/FETCH_POSTS", 16 | FETCH_POSTS_SUCCESS: "@@post/FETCH_POSTS_SUCCESS", 17 | FETCH_POSTS_ERROR: "@@post/FETCH_POSTS_ERROR" 18 | }; 19 | 20 | export interface IDispatchToProps { 21 | fetchPosts: () => IMetaAction; 22 | } 23 | -------------------------------------------------------------------------------- /src/state/index.ts: -------------------------------------------------------------------------------- 1 | import configureStore from "./configureStore.dev"; 2 | 3 | export default configureStore; 4 | -------------------------------------------------------------------------------- /src/state/middlewares/sagas.ts: -------------------------------------------------------------------------------- 1 | import createSagaMiddleware from "redux-saga"; 2 | // Redux-saga middleware 3 | const sagaMiddleware = createSagaMiddleware(); 4 | export default sagaMiddleware; 5 | -------------------------------------------------------------------------------- /src/state/utils/apiCaller.ts: -------------------------------------------------------------------------------- 1 | export default function apiCaller( 2 | method: string, 3 | path: string, 4 | data?: any 5 | ): Promise { 6 | return fetch(process.env.REACT_APP_JSON_PLACEHOLDER + path, { 7 | method, 8 | headers: { 9 | Accept: "application/json", 10 | "Content-Type": "application/json" 11 | }, 12 | body: data ? JSON.stringify(data) : null 13 | }).then(res => res.json()); 14 | } 15 | -------------------------------------------------------------------------------- /tsconfig.json: -------------------------------------------------------------------------------- 1 | { 2 | "compilerOptions": { 3 | "target": "es5", 4 | "lib": [ 5 | "dom", 6 | "dom.iterable", 7 | "esnext" 8 | ], 9 | "allowJs": true, 10 | "skipLibCheck": true, 11 | "esModuleInterop": true, 12 | "allowSyntheticDefaultImports": true, 13 | "strict": true, 14 | "forceConsistentCasingInFileNames": true, 15 | "module": "esnext", 16 | "moduleResolution": "node", 17 | "resolveJsonModule": true, 18 | "isolatedModules": true, 19 | "noEmit": true, 20 | "jsx": "react" 21 | }, 22 | "include": [ 23 | "src" 24 | ] 25 | } 26 | --------------------------------------------------------------------------------