Nuxt•4mo ago

Embeddable components

Hello, I would like to make a component in my app embeddable to other websites. I would like for the interface to look something like this:

<div id="my-custom-component" prop="hi"></div>
<!-- OR -->
<my-custom-component prop="hi"></my-custom-component>

<script src="mydomain.com/js/my-custom-component.js">

<div id="my-custom-component" prop="hi"></div>
<!-- OR -->
<my-custom-component prop="hi"></my-custom-component>

<script src="mydomain.com/js/my-custom-component.js">

It would be great to have this within the same codebase as my nuxt 3 application. What would be the best way to achieve this?

2 Replies

Jouri Jalving•3mo ago

Did you ever find out how to do this?

RicharDVDOP•3mo ago

For us it's currently in the backlog but I had a very basic example (i couldn't yet figure out how to get the css working) as follows: I have created a "widgets" in the root level of the project with the following structure: - /widgets -- /components --- test.vue -- main.js -- vite.config.js vite.config.js

import { URL, fileURLToPath } from 'node:url';
import { defineConfig } from 'vite';
import vue from '@vitejs/plugin-vue';

export default defineConfig({
  plugins: [
    vue(),
  ],
  resolve: {
    alias: {
      '~': fileURLToPath(new URL('/', import.meta.url)),
    },
  },
  build: {
    rollupOptions: {
      input: {
        widget: fileURLToPath(new URL('./main.js', import.meta.url)),
      },
      output: {
        inlineDynamicImports: false,
        entryFileNames: '[name].js',
        chunkFileNames: '[name].js',
        assetFileNames: '[name].[ext]',
        dir: './public/js',
      },
    },
  },
});

import { URL, fileURLToPath } from 'node:url';
import { defineConfig } from 'vite';
import vue from '@vitejs/plugin-vue';

export default defineConfig({
  plugins: [
    vue(),
  ],
  resolve: {
    alias: {
      '~': fileURLToPath(new URL('/', import.meta.url)),
    },
  },
  build: {
    rollupOptions: {
      input: {
        widget: fileURLToPath(new URL('./main.js', import.meta.url)),
      },
      output: {
        inlineDynamicImports: false,
        entryFileNames: '[name].js',
        chunkFileNames: '[name].js',
        assetFileNames: '[name].[ext]',
        dir: './public/js',
      },
    },
  },
});

main.js

import { createApp } from 'vue';
import TheChip from './components/test.vue';

function bootstrapCalculator(target, attributes) {
  const app = createApp(TheChip, attributes);
  app.mount(target);
}

customElements.define('countdown-widget', class extends HTMLElement {
  async connectedCallback() {
    const shadowRoot = this.attachShadow({ mode: 'open' });

    const cssLink = document.createElement('link');
    cssLink.setAttribute('rel', 'stylesheet');
    cssLink.setAttribute('href', '/js/widget.css');

    const ss = new CSSStyleSheet();
    ss.replaceSync('.text-red-500{color:blue;}');

    shadowRoot.adoptedStyleSheets = [ss];

    const attributes = {
      name: this.getAttribute('name'),
    };

    bootstrapCalculator(shadowRoot, attributes);
  }
});

import { createApp } from 'vue';
import TheChip from './components/test.vue';

function bootstrapCalculator(target, attributes) {
  const app = createApp(TheChip, attributes);
  app.mount(target);
}

customElements.define('countdown-widget', class extends HTMLElement {
  async connectedCallback() {
    const shadowRoot = this.attachShadow({ mode: 'open' });

    const cssLink = document.createElement('link');
    cssLink.setAttribute('rel', 'stylesheet');
    cssLink.setAttribute('href', '/js/widget.css');

    const ss = new CSSStyleSheet();
    ss.replaceSync('.text-red-500{color:blue;}');

    shadowRoot.adoptedStyleSheets = [ss];

    const attributes = {
      name: this.getAttribute('name'),
    };

    bootstrapCalculator(shadowRoot, attributes);
  }
});

test.vue

<script lang="ts" setup>
</script>

<template>
  <div class="text-red-500">
    Het werkt? {{ name }}
  </div>
</template>

<style>
.text-red-500 {
  color: red;
}
</style>

<script lang="ts" setup>
</script>

<template>
  <div class="text-red-500">
    Het werkt? {{ name }}
  </div>
</template>

<style>
.text-red-500 {
  color: red;
}
</style>

package.json

{
  "scripts": {
    ...
    "build:fl-component": "vite build --config widgets/vite.config.js"
   }
  ...
}

{
  "scripts": {
    ...
    "build:fl-component": "vite build --config widgets/vite.config.js"
   }
  ...
}

When running the build:fl-component script the outputted js and css will be available inside the public/js folder. You can change this however you'd like in the vite.config.js

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Embeddable components