Update: Next.js >= 12.1 The notification is triggered by the call to userSubject.next() from each of those methods. The user is fetched from the API in a useEffect() React hook with the id parameter from the URL, the id is passed to the component by the getServerSideProps() function on page load. The user service handles communication between the React front-end of the Next.js tutorial app and the backend API for everything related to users. HTTP requests are sent with the help of the fetch wrapper. The returned JSX template renders a bootstrap alert message for each alert in the alerts array. I am using next js and react. The useState is maintained between renders because the top-level React component, Page, is the same. I'm reposting here his answer for more visibility : To redirect using middleware with Next.js >= 12.1: Update: Next.js >= 12 Callbacks | NextAuth.js Create a file middleware.ts in the root directory of your project. ERROR: CREATE MATERIALIZED VIEW WITH DATA cannot be executed from a function, Short story taking place on a toroidal planet or moon involving flying. By default only URLs on the same URL as the site are allowed, you can use the redirect callback to customise that behaviour. Equivalent to clicking the browsers refresh button. in all described approaches you can add asPath to redirect both client and server side. As stated by @Arthur in the comments, 9.5 also include the possibilities to setup redirects in next.config.js. /api/users/*). If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? import { errorHandler, jwtMiddleware } from 'helpers/api'). To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Let's look at an example for a profile page. Oct 1, 2021 at 12:13. The App component overrides the default Next.js App component because it's in a file named /pages/_app.js and supports several features, for more info see https://nextjs.org/docs/advanced-features/custom-app. The global error handler is used catch all errors and remove the need for duplicated error handling code throughout the Next.js tutorial api. when user click on login link or when user redirect to login page with router.push, I want to after lgoin ,user go back to previous page.how can I do that? The callbackUrl parameter is used by the login page component to redirect to the previous page after logging in. For more info on the Next.js link component see https://nextjs.org/docs/api-reference/next/link. next/router | Next.js We display nothing (or a loader) during this check or if we are redirecting. In the Login.js file, we are creating the page . Avoid using asPath until the isReady field is true. . In the nextjs, there are Three ways to redirect the user to other pages or routers. Next.js 10+ is offering us some extra and elegant solution to make a redirection. For more info on the Next.js head component see https://nextjs.org/docs/api-reference/next/head. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The code snippets in this article require NextAuth.js v4. login page, register page). For more info on express-jwt see https://www.npmjs.com/package/express-jwt. You'll add authentication to your app, add the ability to generate hundreds of pages performantly, preview your content, query a database, and use a CMS with Next.js. A useEffect hook is used to get all users from the user service and store them in local state by calling setUsers(). {register('username')}). The Next.js Head component is used to set the default