This is used to override the global App component so that you can implement custom logic such as persisting state, global layouts, and nested routes. _app.tsxĭuring each page initialization, the _app.tsx file is called. But if you already have an API, you don't need to use it. You can use this to build APIs with Next.js. They are server-side-only bundles that will not increase the size of your client-side bundle. Any file in the api folder is mapped to /api/* and is treated as an API endpoint rather than a page. apiĪPI routing takes place in the api folder within the pages directory. Note: Components that are not pages should not be included in the pages directory instead, they should be placed in a separate folder because a route will be created for each and every file in the pagesdirectory. If you open the index.tsx file in the pages directory, you'll see the code for the application's initial page. During the build step, each file in the pages directory will be code split into its JavaScript bundle. Your application’s pages should be placed in the pages directory. This folder contains all the build content and will be required when you deploy your application to the server. Let’s look at some of the crucial files and directories.
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