When passing redirect: false to its options, signIn will return a Promise that only in email and credentials provider types resolves to an object with the following format. { error: string | undefined // Error code based on the type of error status: number // HTTP status code ok: boolean // `true` if the signin … Read more
getStaticProps works only for page components inside pages folder. And the data is fetched at build time. Here is what the documentation says: getStaticProps can only be exported from a page. You cannot export it from non-page files, _app, _document, or _error. If you wanna use UserTransactionsComponent as a normal component, you should use useEffect … Read more
You can use next/router‘s beforePopState to act on changes to the session history navigation (back/forward actions), and make sure it’ll only happen when leaving the current page. useEffect(() => { router.beforePopState(({ as }) => { if (as !== router.asPath) { // Will run when leaving the current page; on back/forward actions // Add your logic … Read more
Before Next.js 12.2 Styling the next/image component’s margins this way doesn’t work in older Next.js versions. See relevant GitHub discussion for more details. Internally to the next/image component, the <img> element and the elements that wrap it have inline styles that override certain values passed through className. As a workaround, you can add a wrapper … Read more
Delete the package-lock.json file and the node_modules directory in your project and then run npm install on your terminal.
Methods like getServerSideProps and getStaticProps are for fetching data on the server but they only work for page components inside the pages folder (the initial way of setting up routes in Next.js). Since Next.js 13, in the app directory we have Server Components, where you can fetch data directly in the component body. In your … Read more
Setting the host flag to 0.0.0.0 To access a FastAPI backend from a different machine/IP (than the local machine that is running the server) on the same network, you would need to make sure that the host flag is set to 0.0.0.0. The IP address 0.0.0.0 means all IPv4 addresses on the local machine. If … Read more
Yes, in the app folder, Next.js by default caches all fetched results. If you are using fetch(), you can change this behavior per query, with revalidate or cache option: fetch(‘https://…’, { next: { revalidate: 10 } }); fetch(‘https://…’, { cache: ‘no-store’ }); You can also control the behavior with Route Segment Config, again if you … Read more
On the Upgrade Guide page, they say “pages/_app.js and pages/_document.js have been replaced with a single app/layout.js root layout”. So in your case, you can put your logic there and make it a client component with “use client” at the top if you want client interactivities like a useEffect in it. But say you don’t … Read more
In development, Next clears Node.js cache on run, so every time there is a “compiling…” in the terminal, it starts as a new app, losing any previous variable. This is why, in this article, written by Next.js team, down to the section where they instantiate a PrismaClient, to have it created only once, they use … Read more