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    fcm-node

    1.6.1 • Public • Published

    Warning: on February 2, 2017, the Firebase Team released the admin.messaging() service to their node.js admin module. This new service makes this module kind of deprecated

    fcm-node NPM version

    A Node.JS simple interface to Google's Firebase Cloud Messaging (FCM). Supports both android and iOS, including topic messages, and parallel calls.
    Aditionally it also keeps the callback behavior for the new firebase messaging service.

    Installation

    Via npm:

    $ npm install fcm-node
    

    Usage

    There are 2 ways to use this lib:

    The classic one

    1. Generate a Server Key on your app's firebase console and pass it to the FCM constructor
    2. Create a message object and call the send() function

    Classic usage example:

        var FCM = require('fcm-node');
        var serverKey = 'YOURSERVERKEYHERE'; //put your server key here
        var fcm = new FCM(serverKey);
    
        var message = { //this may vary according to the message type (single recipient, multicast, topic, et cetera)
            to: 'registration_token', 
            collapse_key: 'your_collapse_key',
            
            notification: {
                title: 'Title of your push notification', 
                body: 'Body of your push notification' 
            },
            
            data: {  //you can send only notification or only data(or include both)
                my_key: 'my value',
                my_another_key: 'my another value'
            }
        };
        
        fcm.send(message, function(err, response){
            if (err) {
                console.log("Something has gone wrong!");
            } else {
                console.log("Successfully sent with response: ", response);
            }
        });

    The new one

    1. Go to your Service account tab in your project's settings and download/generate your app's private key.
    2. Add this file in your project's workspace
    3. Import that file with a require('path/to/privatekey.json') style call and pass the object to the FCM constructor
    4. Create a message object and call the send() function

    "New" usage example

        const FCM = require('fcm-node')
        
        var serverKey = require('path/to/privatekey.json') //put the generated private key path here    
        
        var fcm = new FCM(serverKey)
    
        var message = { //this may vary according to the message type (single recipient, multicast, topic, et cetera)
            to: 'registration_token', 
            collapse_key: 'your_collapse_key',
            
            notification: {
                title: 'Title of your push notification', 
                body: 'Body of your push notification' 
            },
            
            data: {  //you can send only notification or only data(or include both)
                my_key: 'my value',
                my_another_key: 'my another value'
            }
        }
        
        fcm.send(message, function(err, response){
            if (err) {
                console.log("Something has gone wrong!")
            } else {
                console.log("Successfully sent with response: ", response)
            }
        })

    Multi client support (thanks to @nswbmw)

    const FCM = require('fcm-node')
    
    let fcm1 = new FCM(KEY_1)
    let fcm2 = new FCM(KEY_2)
    

    Topic subscription on web clients

    Web clients doesn't have a "native" way to subscribe/unsubscribe from topics other than manually requesting, managing and registering with the google's iid servers. To resolve this "barrier" your server can easily handle the web client's sub/unsub requests with this lib.

    For more detailed information, please take a look at Google InstanceID Reference.

    PS: For mobile clients you can still use the native calls to subscribe/unsubscribe with one-liner calls

    Android
    FirebaseMessaging.getInstance().subscribeToTopic("news");
    iOS
    [[FIRMessaging messaging] subscribeToTopic:@"/topics/news"];

    Subscribe Device Tokens to Topics

    var FCM = require('fcm-node');
    var serverKey = 'YOURSERVERKEYHERE'; //put your server key here
    var fcm = new FCM(serverKey);
    
    fcm.subscribeToTopic([ 'device_token_1', 'device_token_2' ], 'some_topic_name', (err, res) => {
        assert.ifError(err);
        assert.ok(res);
        done();
    });

    Unsubscribe Device Tokens to Topics

    var FCM = require('fcm-node');
    var serverKey = 'YOURSERVERKEYHERE'; //put your server key here
    var fcm = new FCM(serverKey);
    
    fcm.unsubscribeToTopic([ 'device_token_1', 'device_token_2' ], 'some_topic_name', (err, res) => {
        assert.ifError(err);
        assert.ok(res);
        done();
    });

    Notes

    Credits

    Extended by Leonardo Pereira (me). Based on the great work on fcm-push by Rasmunandar Rustam cloned and modified from there, which in its turn, was cloned and modified from Changshin Lee's node-gcm

    License

    MIT

    Changelog

    1.6.0 - Multi client support - Thanks to @nswbmw for this feature 1.5.2 - fixed a bug where the send callback was being called twice - Thanks to @cesardmoro for this fix 1.3.0 - Added proxy capabilities - Thanks to @crackjack for this feature 1.2.0 - Added topic subscriptions management for web clients - Thanks to @sofiapm for this feature
    1.1.0 - Support for the new firebase node.js sdk methods
    1.0.14 - Added example file to quick tests
    1.0.13 - Added a error response in case of TopicsMessageRateExceeded response
    1.0.12 - Refactored the client removing the Event Emitter's Logic to fix concurrency issues. Using pure callbacks now also avoids memory leak in specific scenarios with lots of parallel calls to send function.
    1.0.11 - <FIX> send function returning error objects when multicast messages (or individually targeted) returned both error and success keys on response message (even with error counter = 0 )
    1.0.9 - Updated Documentation
    1.0.8 - <FIX> 'icon' field no longer required in notification
    1.0.7 - renaming repository
    1.0.6 - bugfix: send function was always returning an error object for multicast messages (multiple registration ids)
    1.0.5 - bugfix with UTF-8 enconding and chunk-encoded transfers
    1.0.1 - forked from fcm-push and extended to accept topic messages without errors

    Install

    npm i fcm-node

    DownloadsWeekly Downloads

    12,841

    Version

    1.6.1

    License

    MIT

    Unpacked Size

    31.2 kB

    Total Files

    16

    Last publish

    Collaborators

    • jlcvp