Enhance the Nuxt 3 experience by expanding the functionality of the NuxtApp type with

Question

Enhance the Nuxt 3 experience by expanding the functionality of the NuxtApp type with

When I include a plugin in my NuxtApp, it correctly identifies its type.

https://i.stack.imgur.com/UFqZW.png

However, when I attempt to use the plugin on a page, it only displays the type as "any." https://i.stack.imgur.com/hVSzA.png

Is there a way for me to manually add types to extend the NuxtApp type? How can I make sure it recognizes the correct type of the plugin?

I was considering something like this:

import type { order } from '~/plugins/order'

interface PluginsInjections {
  $order: ReturnType<order>
}

declare global {
  interface NuxtApp extends PluginsInjections {}
}

typescript plugins nuxt.js

Answer 1

Answer №1

I finally cracked the code!

After some research on how to implement it in the i18n plugin, https://i.stack.imgur.com/HjYZY.png

I followed the same steps for my own project in types/index.d.ts

import type { sort } from '~/plugins/sort'

interface PluginsInjection {
  $sort: ReturnType<typeof sort>
}

declare module '#app' {
  interface NuxtApp extends PluginsInjection {}
}

declare module 'nuxt/dist/app/nuxt' {
  interface NuxtApp extends PluginsInjection {}
}

declare module '@vue/runtime-core' {
  interface ComponentCustomProperties extends PluginsInjection {}
}

Now the system recognizes the plugin, providing helpful auto-complete suggestions. https://i.stack.imgur.com/XeJqZ.png

https://i.stack.imgur.com/uz5N7.png

Answer 2

I finally cracked the code!

After some research on how to implement it in the i18n plugin, https://i.stack.imgur.com/HjYZY.png

I followed the same steps for my own project in types/index.d.ts

import type { sort } from '~/plugins/sort'

interface PluginsInjection {
  $sort: ReturnType<typeof sort>
}

declare module '#app' {
  interface NuxtApp extends PluginsInjection {}
}

declare module 'nuxt/dist/app/nuxt' {
  interface NuxtApp extends PluginsInjection {}
}

declare module '@vue/runtime-core' {
  interface ComponentCustomProperties extends PluginsInjection {}
}

Now the system recognizes the plugin, providing helpful auto-complete suggestions. https://i.stack.imgur.com/XeJqZ.png

https://i.stack.imgur.com/uz5N7.png

Answer 3

Answer №2

It's unnecessary to manually specify types for properties and functions injected by plugins because it should be done automatically according to the documentation: https://nuxt.com/docs/guide/directory-structure/plugins#typing-plugins. If the automatic detection is not working as expected, you should investigate why.

In more complex scenarios, you might need to define the types of injected properties manually. Here's an example:

// Your plugin
export default defineNuxtPlugin(() => {
  return {
    provide: {
      hello: (msg: string) => `Hello ${msg}!`
    }
  }
})

// index.d.ts
declare module '#app' {
  interface NuxtApp {
    $hello (msg: string): string
  }
}

declare module '@vue/runtime-core' {
  interface ComponentCustomProperties {
    $hello (msg: string): string
  }
}

export { }

Source: https://nuxt.com/docs/guide/directory-structure/plugins#advanced

Keep in mind that manually specifying types can hide the underlying issue in your code instead of addressing the root cause.

Answer 4

It's unnecessary to manually specify types for properties and functions injected by plugins because it should be done automatically according to the documentation: https://nuxt.com/docs/guide/directory-structure/plugins#typing-plugins. If the automatic detection is not working as expected, you should investigate why.

In more complex scenarios, you might need to define the types of injected properties manually. Here's an example:

// Your plugin
export default defineNuxtPlugin(() => {
  return {
    provide: {
      hello: (msg: string) => `Hello ${msg}!`
    }
  }
})

// index.d.ts
declare module '#app' {
  interface NuxtApp {
    $hello (msg: string): string
  }
}

declare module '@vue/runtime-core' {
  interface ComponentCustomProperties {
    $hello (msg: string): string
  }
}

export { }

Source: https://nuxt.com/docs/guide/directory-structure/plugins#advanced

Keep in mind that manually specifying types can hide the underlying issue in your code instead of addressing the root cause.

Enhance the Nuxt 3 experience by expanding the functionality of the NuxtApp type with

Answer №1

Answer №2

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