I have an android app on which I want to send notification via my web app.
How do I send Firebase Cloud Messaging notification with nodejs? I have found a lot of examples and posts on this subject, but in all of them you are supposed to just paste device Token and send notification to that device. If I wanted to use it that way, I would be able to simply implement this from official documentation.
The thing is, I need to receive user id from database so I know which user I want to send notification. After I have user id I can then retrieve device Token from the same database. I get both user id and device token on client side. And documentation refers to server side.
This all happen after button click. So, I don't understand how to send notification on server side, meaning, I don't have there all those informations I need - user id, device token and message info that contain some other database info. Do I pass those arguments from client side to server side somehow, or is there a way of using modules like "require()" on client side?
What is the best approach here?
You will need to implement a device token registry to fit with your use case. So if you want to send messages to users, then you will need a registry (really just a fancy word for a database) of the token(s) for each user. Then when you want to send a specific user a message, you look up their token(s) in the registry, and call the FCM API to send messages to them. Since you mention Node.js, you can likely do this using the Firebase Admin SDK: https://firebase.google.com/docs/cloud-messaging/admin/send-messages#send_to_individual_devices.
An alternative I have once written article about using a topic for each user, which saves having to have a registry of their tokens. While this is less secure (since anyone who knows a topic, can subscribe to it), it is definitely easier to implement.
Related
I want to send FCM to everyone who installed the app. Is it essential to get everyone's tokens from the database every time?
My app is using firebase firestore overall. If there are 100,000 users,
do I have to read 100,000 from database to send fcm each time? (I think it`s little heavy stuff isn`t it?)
another workroad exists?
I wonder Is the only way to send it by putting it in the registration ID?
And can you send it on time? All apps on the market send push messages on time, but if you read 100,000 and send fcm separately, shouldn't it arrive like this at 9:01 or 9:02? But why do I always get messages at 9 o'clock?
What are the methods, logic, algorithms they use (the way companies usually use)
I still have no clue at all.
There is no "send to all users" operation in FCM. You either will have to send to each token (that's not a heave operation for FCM, which handles billions of such calls every second), or you have to subscribe all instances to a specific topic and then send to that topics (which ends up the same behind the scenes, just with Firebase loading the tokens for the topic for you).
This has been covered a few times before, so I recommend checking:
How do you send a Firebase Notification to all devices via CURL?
How to send notifications to all devices using Firebase Cloud Messaging
Firebase Cloud Messaging - Send message to all users
The notifications panel in the Firebase console has an option to deliver messages at a specific time, but no such option exists in the Firebase Cloud Messaging API. You'll have to either implement your own mechanism to schedule the delivery, or you can deliver a data message right away and then only display the notification on the device when it's time.
This also has been covered a few times before, so check:
Firebase Messaging FCM Distribution over configurable time interval
How can scheduled Firebase Cloud Messaging notifications be made outside of the Firebase Console?
Flutter Firebase Messaging: How to send push notifications to users at specified time
I am trying to send a notification to a specific user using FCM, but I haven't found a way. I have a mobile app and a node server running.
I want to be able to send a notification when the shipment status changes. I have already a function for it in my server I just have to send the notification to the user. Is it possible to achieve this using nodejs or is there a way to implement it in flutter?
I found this code
var 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)
this is a npm package taht lets send a notification but it asks for a registration token.
I hope you can help me. Thanks in advance!
Firebase Cloud Messaging has no concept of a user. Instead it can send messages to:
Specific app instances (so your specific app as installed on one specific device), as identified by an FCM/device token.
A group of app instances/tokens, as defined by your application logic.
A specific topic, to which app instances can then subscribe.
It's up to your application logic to decide how to map from your user ID to one of these options. The most common are to:
Store the device token(s) and your user ID in your own database, then look up the device token(s) for a user when needed and fill them in to the API call you already have.
Use a specific topic for each user ID, subscribe the application to that when it starts, and then send a message to that topic when needed. Note that anyone can subscribe to any topic though, so this approach would allow folks to receive message for anyone whose user ID they know.
I am able to send the notification to a single user by getting its fcm token.
Consider this simple case of something like Instagram:
A user(X) sends a friend request to some different user(Y)
Now I want to send a notification to user Y, how should I do that?
The only way I can think of is to store the fcm token into the user data base and send on basis of that, Is there a better method?
Firebase Cloud Messaging has three ways to target messages:
You send a message to a FCM token/device ID.
An FCM token identifies a specific app on a specific device, so you're targeting a single app instance.
You send a message to a topic.
An app instance can subscribe to any topic, so you're targeting everyone who has subscribed to the topic here.
You send a message to a device group.
You can group FCM tokens into groups of up to 20, which you can then target with a single message.
Of these options, the first and third are by far the most common.
You'll note that there's no options to send a message to a user, as FCM doesn't have the concept of a user. A user can be signed in to the same app on multiple devices, in which case they'd have multiple FCM tokens. And (less common, but still common enough to think about) multiple users can sign into the same app on the same device.
You'll want to set up a database somewhere (sometimes referred to as a token registry) where you map the FCM tokens to how you want to send messages. So in your case, storing the tokens for each user makes sense, and is in fact quite idiomatic.
I'm building a Node only application that reads logs in the background and based on an event being read will send a message to a Teams channel directly.
I've been having quite a few issues getting a Graph API access token valid through Username and password.
I have been able to get a Graph API access token with client secret and tenant id which represents access
"without a user". Now that does not allow me to post a message in a channel as I would need to have access "on behalf of a user".
API => https://graph.microsoft.com/v1.0/teams/{team-id}/channels/{channel-id}/messages .
Would there be another way of achieving this? Webhook/Connectors?
Thank you!
There's a few different ways you can post to a teams channel, you can set up like you said an http webhook, where you could call it to post into a channel https://learn.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/connectors-using
You can use power automate (flow) or logic apps to post messages as the flowbot, or you can write a bot/ use the bot framework to register a bot that can post to teams, called proactive messaging: https://learn.microsoft.com/en-us/microsoftteams/platform/resources/bot-v3/bot-conversations/bots-conv-proactive
As for trying to use graph with application permissions, that's not possible, at least for the moment.
I need to edit request before sending it to endpoint.
Using Web Demo integration I'm able to send request to the endpoint.
But I can't edit the request in order to provide some extra data to request. Extra data is stored in localStorage so I need to do this in javascript.
I've already connected the agent to an endpoint that handle the request using fullfillment. The problem is that request misses data I can retrieve only from the browser. From fullfillment I can set headers and basic auth but statically and it is not enough.
So I need to add a step in request building/sending:
User write or tell something to embedded chat (Web Demo integration)
Dialogflow recognize intent, params, generate the request.
Additional step: Update the request in javascript
Forward cutomized request to the endpoint
Maybe it's not possible using Web Demo integration. In Documentation can't find a way to just send string or audio in order to receive the generated request.
First of all you will need a custom chat integration, not the default Dialogflow one. Something like Smooch or Kommunicate. The default web demo should only be used for testing your bot. There is NO way you would want to use that in a production environment.
I would save whatever is in the local storage in a database such as Firestore. Once that data is in the database you can use it to modify your request in your fulfillment.
So what I would do:
Have a way to identify a user and save its local storage to the database (as soon as someone clicks on your chat window or opens the chat window)
Once an intent is triggered you check which user is contacting you (through the way that you identified the user) and get all data from the database
Request the data in your fulfillment server
There is no other way in which this is possible. You can't change requests before your query hits Dialogflow.