I am running a cloud scheduler with firebase functions and would like to send the specific user a notification when something in the cloud using node js has completed, I researched about cloud messaging but it send it to everyone, I don't want that, how can I achieve what I'm looking for
You can send notifications to a specific app instance by targeting the FCM device registration tokens.
https://firebase.google.com/docs/cloud-messaging/send-message#send-messages-to-specific-devices
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I have an admin site that has a react frontend, using redux actions, with a node.js app as the server which uses firebase-admin to do the work.
I want to use firestore's onsnapshot listener. but im not sure how this works within the HTTP protocol?
I can't use the firebase-admin from my frontend app, and i cant create realtime DB functionality from the backend within HTTP protocol.
The goal: to set snapshot listeners on my collections from rreact frontend without having to go through multiple authentication processes, considering ive got a separate auth system for admins with my express api.
Is there a solution for this?
EDIT:
my client app is currently initialized with firebase web app config data, but because im authenticating admins with my own express server, the firebase web SDK hasnt authenticated with firebase, so i dont have permission for the data i need. im not sure if i need a service account, or a web app config with extra setup or what
My recommendation is to integrate the Firebase JS SDK into your client app using signInWithCustomToken().
It's not too complicated to do. Though I suppose that depends a lot on how your current auth setup works.
The general idea is this:
Send auth request to your auth service.
Process the request like normal.
Evaluate if the user should have access to Firebase.
If they should, use firebase-admin to create a custom token and send it back to the user.
Use the token on the client to authenticate with Firebase.auth
You should make sure to have Firestore rules to allow admin users to access the data you need.
As an alternative that doesn't use the Firebase client SDK, you could have a long-running node process that opens an onSnapshot. Your react app could receive data from it using either Server-Sent Events or through a WebSocket
I have two Ionic applications, and both use the same API served with node. What I need is that when one app sends a post request, the other app gets that post request and uses the information that comes from the request. How can I achieve this? I thought of listening for that particular post request, but I don't know if that's possible, or when the post request reaches the API, trigger some action in the server that sends the information to the other app. Is this possible?
You can use Firebase Cloud Messaging to implement this.
When one ionic application requests a service from your server by using HTTP Requests, the server will trigger the respective action and sends a push notification to your other app by using the Firebase cloud messaging service. Your 2nd app will capture this push notification by subscribing to a URL in Firebase.
For the server-side, You can use fcm-node module or Firebase NodeJS Module to implement this functionality. For the mobile app, you can use providers in ionic to subscribe to firebase cloud messages
A detailed guide on implementing push notifications can be found here
When I create a bot in Slack, I can use channel configuration on Azure Bot Service to receive event/message from Slack and communicate with my Web App Bot which handles various functions.
However, when I create a bot in a chat service which is not supported in channel configuration (e.g., Discord), I need to set up a client in my Web App Bot (e.g., Discord.Net) to communicate with the service.
Then, although I guess the Direct Line channel (REST API) will handle communication between the Web App Bot and Bot Service, but am not sure if it's correct. Is my assumption right?
Also, it is not clear for me if there's an advantage of using Bot Service in this situation, because simply I may host an individual web app on Azure or another location and let it communicate with the chat service. Why do I need to add one more service to handle?
I suppose that one possible advantage could be that I can easily access various features (e.g., LUIS) via the Bot Service. Also, the bot can handle various platform like Skype or Cortana with one code.
But still I don't really understand this topic. Could anyone give me a suggestion and best practice?
Below is my current understanding, it could be wrong though.
Directline API isn't the easiest to work with, and making a Bot Framework bot work with Discord is going to take a good amount of work. But the purpose of the Directline is to be the connection between your bot (Azure Bot Service/Web App Bot) and Discord. To use the Directline API, you're going to:
1) Get your directline secret by registering your bot on Azure (Azure Bot Services)
2) Create your directline object, using above secret (this is the line of communication between ABS and Discord)
3) Use your directline object to POST activities to the bot from the user and Listen for activities from the bot
4) Additional purposes not related to conversation: your directline object will monitor connection status of your websockets, and keep the token refreshed for the conversations
The Directline-js repo has a good README and code samples, but bear in mind that the framework is constantly being improved. As of this writing, there are 8 pull requests waiting for review for the repo.
The AI Help Website wrote a preview back in July 2018 (before the release of v4) on how to use the Directline API with C#
And finally, the official documentation for the Directline API is here
As for connecting your bot with Discord, the Discord API reference has instructions on how to get your authorization token here.
I need to use firebase cloud messaging application in web application development. I am able to send the push notification to a single client from the server. But I dont know how to subscribe tokens, i.e, sending push notifications to multiple clients from a single server. Is there any example code available for sending messages/notifications to multiple clients?
According to Azure Notification Hub documentation, when registering from the app backend, the app provides the backend with its PNS handle.
What if the user does not run the app for a long period? If user does not open the app after some days his handle gets renewed. In that case if I send a push notification user will not receive it?
It's based on platform. Even if App is not opened, you can still send the notifications until the PNS handle expires or invalid.
In case of Android, GCM returns new PNS Handle and if old one expires. And Notification Hub takes care and update the registration.
Thanks,
Sateesh