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modules

Use the modules/ directory to automatically register local modules within your application.

It is a good place to place any local modules you develop while building your application.

The auto-registered files patterns are:

  • modules/*/index.ts
  • modules/*.ts

You don't need to add those local modules to your nuxt.config.ts separately.

// `nuxt/kit` is a helper subpath import you can use when defining local modules
// that means you do not need to add `@nuxt/kit` to your project's dependencies
import { createResolver, defineNuxtModule, addServerHandler } from 'nuxt/kit'

export default defineNuxtModule({
  meta: {
    name: 'hello'
  },
  setup () {
    const { resolve } = createResolver(import.meta.url)

    // Add an API route
    addServerHandler({
      route: '/api/hello',
      handler: resolve('./runtime/api-route')
    })
  }
})

When starting Nuxt, the hello module will be registered and the /api/hello route will be available.

Local modules are registered in alphabetical order. You can change the order by adding a number to the front of each directory name:

Directory structure
modules/
  1.first-module/
    index.ts
  2.second-module.ts
Read more in Docs > Guide > Going Further > Modules.

middleware

Nuxt provides middleware to run code before navigating to a particular route.

node_modules

The package manager stores the dependencies of your project in the node_modules/ directory.