Designing personalized plugins with Typescript in Nuxt

Question

Designing personalized plugins with Typescript in Nuxt

In my Nuxt project, I have implemented a custom plugin file that contains an object with settings called /helpers/settings:

export const settings = {
  baseURL: 'https://my-site.com',
  ...
};

This file is then imported and registered in /plugins/settings.ts:

import Vue from 'vue';
import { settings } from '~/helpers/settings';

Vue.prototype.$settings = settings;

Furthermore, the plugin is added to the configuration in nuxt.config.js:

export default {
  ...
  plugins: [
    '~/plugins/settings',

Then, within any component, I can easily utilize the plugin like this:

export default Vue.extend({
  data() {
    return {
      url: `${this.$settings.baseURL}/some-path`,

Despite everything functioning as anticipated, I encounter a TypeScript error in the console when referencing the plugin in my component:

Property '$settings' does not exist on type 'CombinedVueInstance<Vue, unknown, unknown, unknown, Readonly<Record<never, any>>>'.

This leads to my inquiry: What is the correct approach to applying a type to my custom plugin in order to avoid this error whenever it is utilized?

javascript typescript vue.js plugins nuxt.js

Answer 1

Answer №1

As outlined in the documentation, it is necessary to enhance the type file for Vue.

To accomplish this, insert the provided code snippet into a file named plugin-types.d.ts.

// 1. Be sure to import 'vue' before declaring augmented types
import Vue from 'vue'

// 2. Specify the file containing the types you wish to augment
//    The constructor type for Vue can be found in types/vue.d.ts
declare module 'vue/types/vue' {
  // 3. Define the augmentation for Vue
  interface Vue {
    $settings: string
  }
}

Answer 2

As outlined in the documentation, it is necessary to enhance the type file for Vue.

To accomplish this, insert the provided code snippet into a file named plugin-types.d.ts.

// 1. Be sure to import 'vue' before declaring augmented types
import Vue from 'vue'

// 2. Specify the file containing the types you wish to augment
//    The constructor type for Vue can be found in types/vue.d.ts
declare module 'vue/types/vue' {
  // 3. Define the augmentation for Vue
  interface Vue {
    $settings: string
  }
}

Answer 3

Answer №2

This response seems to do the job, but I've come across a simpler (albeit messier) solution that doesn't require adding the plugin-types.d.ts file.

Simply insert a property into your component with the name "plugin" like so:

@Component
export default class YourComponent extends Vue {
  private $settings!: string; // your plugin here
  private url: string = `${this.$settings.baseURL}/some-path`
}

Answer 4

This response seems to do the job, but I've come across a simpler (albeit messier) solution that doesn't require adding the plugin-types.d.ts file.

Simply insert a property into your component with the name "plugin" like so:

@Component
export default class YourComponent extends Vue {
  private $settings!: string; // your plugin here
  private url: string = `${this.$settings.baseURL}/some-path`
}

Designing personalized plugins with Typescript in Nuxt

Answer №1

Answer №2

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