To opt in using the service worker, change the serviceWorkerRegistration.unregister() to serviceWorkerRegistration.register(). If you want your app to work offline and load faster, you can change In the project, open the file named index.js and find the code that looks like: To configure this to run offline, we should register the generated service worker file. The create-react-app provided all the tools needed to create a Progressive Web App in React. It handles network intercepts from requests and managing caching for offline availability. Registering a service workerĪ service worker is a script that runs in the browser’s background. Our application will need functionalities to run offline, caching assets by registering service workers, and also installing it on the end user’s device home screen. Should look and feel like native apps i.e run on a fullscreen mode etc. Safety as it should rely on the HTTPS protocol. Some features of a progressive web app include:Ī Progressive Web App must be able to work offline. This CSS file will style our application as we are importing this file in the App.js.Ĭonst = useState( "") ĪddTodo( Delete ) Ĭlicking the Check button will invoke the HandleComplete function that will call the completeTodo function from the props and pass the id of the todo.Ĭlicking the Delete button will invoke The HandleDelete method will call the removeTodo function from props and pass the id of the todo.Īdding functionality to make it a Progressive Web App The Form and TodoList components are mounted with appropriate props.Īdd this code to the App.css file. We return a div containing tag as the header. The addTodo is a function that is used to add a new todo by calling the setTodos method to update the state. The setTodos function is used to set the todos state with a new value. The useState hook is used to create the todos state which is an array of all the todos that are tracked. We import the TodoList and Form component which we will create in the next steps. Import TodoList from './components/TodoList'
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