Nuxt FCM

A Nuxt 3 module for integrating Firebase Cloud messaging. This module is based on Firebase JS SDK on the client side and Firebase Admin SDK on the server side.

Features

• ✔️ Listen to messages via useFcm composable
• ✔️ Send, subscribe & unsubscribe from topics via useFcmTopic composable

Quick Setup

1. Add dependencies to your project

# Using npm
npm install --save-dev @bg-dev/nuxt-fcm

# Using yarn
yarn add --dev @bg-dev/nuxt-fcm

2. Add @bg-dev/nuxt-fcm to the modules section of nuxt.config.ts

export default defineNuxtConfig({
  modules: ["@bg-dev/nuxt-fcm"],
});

3. Set fcm config object

• firebaseConfig Firebase project configuration.
• vapidKey Public server key provided to push services docs.
• serviceAccount Firebase admin credentials docs. You can ignore this property in case the app server is not needed.

4. If you are using an app server, make sure to enable Cloud messaging API docs.

That's it! You can now use Nuxt FCM in your Nuxt app ✨

Usage

Authorization

By default all the topic's related features are inaccessible. Add a server-side middleware to check the user's role and set the permissions accordingly.

// server/middleware/fcm.ts

import { setPermissions } from "#fcm";

export default defineEventHandler((event) => {
  setPermissions(event, {
    topic: {
      send: true,
      subscribe: true,
      unsubscribe: true,
    },
  });
});

Listen to messages

In the foreground, when a message is received it's passed to the page and the onMessage event is dispatched with the payload.

const { onMessage } = useFcm();

onMessage(console.log);

In the background, notifications are automatically shown when a message is received. To add custom logic, the service worker can be extended via the serviceWorkerScript config option (source).

  // nuxt.config.ts
  fcm: {
    serviceWorkerScript: `
      messaging.onBackgroundMessage((payload) => {
        console.log("Received background message ", payload);
      })

      function onNotificationClick(event) {
        console.log('[firebase-messaging-sw.js] Notification clicked', event)
        event.notification.close();
      }
    `,
  },

Add other Firebase services

You can integrate other Firebase services such as Google Analytics to provide insights into user behavior and engagement stats.

// nuxt.config.ts
// Exclude package from vite optimization

  vite: {
    optimizeDeps: {
      exclude: ["firebase/analytics"],
    },
  },

// plugins/analytics.client.ts
// Define a client-side plugin to expose the service's instance

import { getAnalytics } from "firebase/analytics";

export default defineNuxtPlugin(() => {
  const analytics = getAnalytics();

  return {
    provide: {
      analytics,
    },
  };
});

Appendix

• FCM architecture docs
• Message types docs

Development

# Install dependencies
npm install

# Generate type stubs
npm run dev:prepare

# Develop with the playground
npm run dev

# Build the playground
npm run dev:build

# Run ESLint
npm run lint

# Run Vitest
npm run test
npm run test:watch

# Release new version
npm run release