Write Cloud Function to Send Notification Messages to Mobile App Users Using Firebase Cloud Messaging
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Firebase Cloud Messaging (FCM) is a cross-platform messaging solution that lets you reliably deliver messages at no cost. In this guide, we'll show you how to write a Cloud Function that will send notification messages to your mobile app users using the Firebase Admin SDK.
4.9 out of 5
Language | : | English |
File size | : | 891 KB |
Text-to-Speech | : | Enabled |
Screen Reader | : | Supported |
Enhanced typesetting | : | Enabled |
Print length | : | 13 pages |
Lending | : | Enabled |
Prerequisites
- A Firebase project
- The Firebase Admin SDK
- A mobile app that is integrated with FCM
Create a Cloud Function
- Open the Firebase console and go to the Functions section.
- Click on the "Create Function" button.
- Select the "HTTP" trigger.
- Enter a name for your function.
- Click on the "Deploy" button.
Install the Firebase Admin SDK
- Open your terminal and run the following command:
- Once the installation is complete, you can import the Firebase Admin SDK into your Cloud Function.
npm install firebase-admin
Write the Cloud Function
javascript const functions = require('@google-cloud/functions-framework'); const admin = require('firebase-admin');
admin.initializeApp();
const messaging = admin.messaging();
functions.http('sendNotification', async (req, res) => { const { token, title, body }= req.body;
const message = { token, notification: { title, body }};
await messaging.send(message);
res.sendStatus(200); });
Deploy the Cloud Function
- Open your terminal and run the following command:
- Once the deployment is complete, your Cloud Function will be live and will be triggered whenever a POST request is made to the URL of your function.
firebase deploy --only functions
Test the Cloud Function
- Open your mobile app and make sure that it is connected to the internet.
- Open your browser and go to the URL of your Cloud Function.
- Enter the token of your device, the title of the notification, and the body of the notification.
- Click on the "Send" button.
If everything is set up correctly, you should receive a notification on your mobile app.
In this guide, we showed you how to write a Cloud Function that will send notification messages to your mobile app users using the Firebase Admin SDK. We also provided you with a complete code example and instructions on how to deploy and test your function.
4.9 out of 5
Language | : | English |
File size | : | 891 KB |
Text-to-Speech | : | Enabled |
Screen Reader | : | Supported |
Enhanced typesetting | : | Enabled |
Print length | : | 13 pages |
Lending | : | Enabled |
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4.9 out of 5
Language | : | English |
File size | : | 891 KB |
Text-to-Speech | : | Enabled |
Screen Reader | : | Supported |
Enhanced typesetting | : | Enabled |
Print length | : | 13 pages |
Lending | : | Enabled |